diff --git a/KaSa_rep/reachability_analysis/site_across_bonds_domain.ml b/KaSa_rep/reachability_analysis/site_across_bonds_domain.ml
index ed13a4fb27..15ae09b96b 100644
--- a/KaSa_rep/reachability_analysis/site_across_bonds_domain.ml
+++ b/KaSa_rep/reachability_analysis/site_across_bonds_domain.ml
@@ -4,7 +4,7 @@
    * Jérôme Feret & Ly Kim Quyen, project Antique, INRIA Paris
    *
    * Creation: 2016, the 31th of March
-   * Last modification: Time-stamp: <Apr 08 2017>
+   * Last modification: Time-stamp: <Apr 27 2017>
    *
    * Abstract domain to record relations between pair of sites in connected agents.
    *
@@ -972,8 +972,31 @@ struct
   (*APPLY RULE*)
   (***************************************************************************)
 
+  let check_association_list
+      parameters error bdu_false
+      pair
+      check
+      dynamic
+    =
+    let store_result = get_value dynamic in
+    let handler = get_mvbdu_handler dynamic in
+    let error, handler, mvbdu =
+      Ckappa_sig.Views_bdu.mvbdu_of_association_list
+        parameters handler error check
+    in
+    let error, handler, bool =
+      Site_across_bonds_domain_type.check
+        parameters error bdu_false handler
+        pair
+        mvbdu
+        store_result
+    in
+    let dynamic = set_mvbdu_handler handler dynamic in
+    error, dynamic, bool
 (*there is an action binding in the domain of a rule*)
 
+
+
   let build_mvbdu_association_list parameters error bdu_false
       kappa_handler dump_title bool modified_sites pair pair_list dynamic =
     let store_result = get_value dynamic in
@@ -1205,19 +1228,53 @@ struct
     let dynamic = set_global_dynamic_information global_dynamic dynamic in
     error, dynamic, precondition, state_list
 
+
+
   let get_state_of_site_in_precondition_2
-      error static dynamic rule agent_id
-      (site_type_x, agent_type_y, site_type_y)
-      site_type'_y
+      error static dynamic rule
+      agent_id agent_type site
       precondition =
-    let defined_in = Communication.LHS rule in
-    get_state_of_site_in_pre_post_condition_2
-      error static dynamic
-      agent_id
-      (site_type_x, agent_type_y, site_type_y)
-      site_type'_y
-      defined_in
-      precondition
+
+    let path =
+      {
+        Communication.defined_in = Communication.LHS rule;
+        path =
+          {
+            Communication.agent_id = agent_id;
+            Communication.relative_address = [];
+            Communication.site = site}
+      }
+    in
+    let error, global_dynamic, precondition, state_list_lattice =
+      Communication.get_state_of_site
+        error
+        precondition
+        (get_global_static_information static)
+        (get_global_dynamic_information dynamic)
+        path
+    in
+    let error, state_list =
+      match state_list_lattice with
+      | Usual_domains.Val l -> error, l
+      | Usual_domains.Undefined -> error, []
+      | Usual_domains.Any ->
+        let parameter = get_parameter static in
+        let error, () =
+          if Remanent_parameters.get_view_analysis parameter
+          then
+            Exception.warn
+              (get_parameter static) error __POS__ Exit ()
+          else
+            error, ()
+        in
+        let kappa_handler = get_kappa_handler static in
+        Handler.state_list
+          parameter kappa_handler error agent_type site
+    in
+    let dynamic = set_global_dynamic_information global_dynamic dynamic in
+    error, dynamic, precondition, state_list
+
+
 
   let get_state_of_site_in_postcondition_2
       error static dynamic rule agent_id
@@ -1232,6 +1289,7 @@ struct
       defined_in
       precondition
 
+
   type pos = Fst | Snd
 
   let get_partition_modified pos static =
@@ -1260,6 +1318,8 @@ struct
         (site_type_y, agent_type_x, site_type_x) site_type'_x
         precondition
 
+
+
   let get_potential_tuple_pair parameters error (agent, site) empty_map map =
     let error, result =
       match
@@ -1341,13 +1401,47 @@ struct
                                | Snd -> site_type'_x))
                   __POS__ Exit
               in
+              let error', dynamic, precondition, state_list_other =
+                let error, agent =
+                    match
+                      Ckappa_sig.Agent_id_quick_nearly_Inf_Int_storage_Imperatif.get
+                        parameters
+                        error
+                        agent_id_mod
+                        rule.Cckappa_sig.e_rule_c_rule.Cckappa_sig.rule_lhs.Cckappa_sig.views
+                    with
+                    | error, None ->
+                      Exception.warn parameters error __POS__ Exit Cckappa_sig.Ghost
+                    | error, Some a -> error, a
+                in
+                match agent with
+                | Cckappa_sig.Ghost
+                | Cckappa_sig.Unknown_agent _
+                | Cckappa_sig.Dead_agent _ ->
+                  error, dynamic, precondition, []
+                | Cckappa_sig.Agent agent ->
+                  get_state_of_site_in_precondition_2
+                    error static dynamic
+                    (rule_id, rule)
+                    agent_id_mod agent_type_mod site_type_mod
+                    precondition
+              in
+              let error =
+                Exception.check_point
+                  Exception.warn
+                  parameters error error'
+                  ~message:(context rule_id agent_id_mod site_type_mod)
+                  __POS__ Exit
+              in
               (*-----------------------------------------------------------*)
               let error, bool, dynamic, precondition, modified_sites =
-                match state'_list_other with
-                | [] | _::_::_ ->
-                  (* we know for sure that the site has not been modified *)
-                  error, bool, dynamic, precondition, modified_sites
-                | [_]  ->
+                let not_modified =
+                  match state'_list_other with
+                  | [] | _::_::_ -> true
+(* we know for sure that the site has not been modified *)
+
+                  | [_] -> false
+                in
                 List.fold_left
                   (fun (error, bool, dynamic, precondition, modified_sites)
                     state'_other ->
@@ -1364,17 +1458,58 @@ struct
                       (agent_type_x, site_type_x, site_type'_x,state_x),
                       (agent_type_y, site_type_y, site_type'_y,state_y)
                     in
-                    let error, bool, dynamic, modified_sites =
-                      build_mvbdu_association_list
+                    let check =
+                      match state_list_other,pos
+                      with
+                        ([] | _::_::_),_ -> []
+                      | [a],Fst ->
+                        [Ckappa_sig.fst_site, a]
+                      | [a],Snd ->
+                        [Ckappa_sig.snd_site, a]
+                    in
+                    let check =
+                      if not_modified
+                      then
+                        match pos with
+                        | Fst  ->
+                          (* to do: add info about the other site *)
+                          (* if the bond between site_type_x and site_type_y
+                             has not been created by the rule *)
+                          (* this is the state before the modification *)
+                          (* otherwise, nothing to check *)
+                          (Ckappa_sig.snd_site, state'_other)::check
+                        | Snd ->
+                          (* to do: add info about the other site *)
+                          (* if the bond between site_type_x and site_type_y
+                             has not been created by the rule *)
+                          (* this is the state before the modification *)
+                          (* this is the state before the modification *)
+                          (Ckappa_sig.fst_site, state'_other)::check
+                      else
+                        check
+                    in
+                    let error, dynamic, unmodified_sites_ok =
+                      check_association_list
                         parameters error bdu_false
-                        kappa_handler dump_title
-                        bool
-                        modified_sites
                         pair
-                        pair_list
+                        check
                         dynamic
                     in
-                    error, bool, dynamic, precondition, modified_sites
+                    if unmodified_sites_ok
+                    then
+                      let error, bool, dynamic, modified_sites =
+                        build_mvbdu_association_list
+                          parameters error bdu_false
+                          kappa_handler dump_title
+                          bool
+                          modified_sites
+                          pair
+                          pair_list
+                          dynamic
+                      in
+                      error, bool, dynamic, precondition, modified_sites
+                    else
+                      error, bool, dynamic, precondition, modified_sites
                   )
                   (error, bool, dynamic, precondition, modified_sites)
                   state'_list_other
diff --git a/KaSa_rep/reachability_analysis/site_across_bonds_domain_type.ml b/KaSa_rep/reachability_analysis/site_across_bonds_domain_type.ml
index 5a46a9e9a0..2f6f3860c9 100644
--- a/KaSa_rep/reachability_analysis/site_across_bonds_domain_type.ml
+++ b/KaSa_rep/reachability_analysis/site_across_bonds_domain_type.ml
@@ -4,7 +4,7 @@
    * Jérôme Feret & Ly Kim Quyen, project Antique, INRIA Paris-Rocquencourt
    *
    * Creation: 2016, the 31th of March
-   * Last modification: Time-stamp: <Apr 08 2017>
+   * Last modification: Time-stamp: <Apr 27 2017>
    *
    * Abstract domain to record relations between pair of sites in connected agents.
    *
@@ -504,6 +504,25 @@ let add_sites_from_tuples parameters error tuple modified_sites =
       (error, modified_sites)
       [agent,site1;agent,site2;agent',site1';agent',site2']
 
+let check
+    parameters error bdu_false handler
+    pair
+    mvbdu
+    store_result
+  =
+  let error, bdu_old =
+    get_mvbdu_from_tuple_pair parameters error pair bdu_false store_result
+  in
+  let error, handler, new_bdu =
+    Ckappa_sig.Views_bdu.mvbdu_and
+      parameters handler error bdu_old mvbdu
+  in
+  if Ckappa_sig.Views_bdu.equal new_bdu bdu_false
+  then
+    error, handler, false
+  else
+    error, handler, true
+
 let add_link_and_check parameter error bdu_false handler
     kappa_handler bool dump_title x mvbdu modified_sites store_result =
   let error, bdu_old =
diff --git a/models/test_suite/CMSB_paper/dimer/output/LOG.ref b/models/test_suite/CMSB_paper/dimer/output/LOG.ref
index 4dac95c8fa..e0ed19a273 100644
--- a/models/test_suite/CMSB_paper/dimer/output/LOG.ref
+++ b/models/test_suite/CMSB_paper/dimer/output/LOG.ref
@@ -42,11 +42,6 @@ R(c!1),R(c!1) =>
 		v R(c!1,cr),R(c!1,cr)
 		v R(c!1,cr),R(c!1,cr!R.n)
 	]
-R(c!1),R(c!1) => 
-	[
-		  R(c!1,cr!R.n),R(c!1,n!R.cr)
-		v R(c!1,cr),R(c!1,n)
-	]
 R(c!1),R(c!1) => 
 	[
 		  R(c!1,n!R.cr),R(c!1,n)
diff --git a/models/test_suite/CMSB_paper/dimer_all_domains/output/LOG.ref b/models/test_suite/CMSB_paper/dimer_all_domains/output/LOG.ref
index 4dac95c8fa..e0ed19a273 100644
--- a/models/test_suite/CMSB_paper/dimer_all_domains/output/LOG.ref
+++ b/models/test_suite/CMSB_paper/dimer_all_domains/output/LOG.ref
@@ -42,11 +42,6 @@ R(c!1),R(c!1) =>
 		v R(c!1,cr),R(c!1,cr)
 		v R(c!1,cr),R(c!1,cr!R.n)
 	]
-R(c!1),R(c!1) => 
-	[
-		  R(c!1,cr!R.n),R(c!1,n!R.cr)
-		v R(c!1,cr),R(c!1,n)
-	]
 R(c!1),R(c!1) => 
 	[
 		  R(c!1,n!R.cr),R(c!1,n)
diff --git a/models/test_suite/CMSB_paper/dimer_cm_views_site_across_bonds/output/LOG.ref b/models/test_suite/CMSB_paper/dimer_cm_views_site_across_bonds/output/LOG.ref
index f3a3447e93..b4934a2a39 100644
--- a/models/test_suite/CMSB_paper/dimer_cm_views_site_across_bonds/output/LOG.ref
+++ b/models/test_suite/CMSB_paper/dimer_cm_views_site_across_bonds/output/LOG.ref
@@ -42,11 +42,6 @@ R(c!1),R(c!1) =>
 		v R(c!1,cr),R(c!1,cr)
 		v R(c!1,cr),R(c!1,cr!R.n)
 	]
-R(c!1),R(c!1) => 
-	[
-		  R(c!1,cr!R.n),R(c!1,n!R.cr)
-		v R(c!1,cr),R(c!1,n)
-	]
 R(c!1),R(c!1) => 
 	[
 		  R(c!1,n!R.cr),R(c!1,n)
diff --git a/models/test_suite/CMSB_paper/dimer_views_site_across_bonds/output/LOG.ref b/models/test_suite/CMSB_paper/dimer_views_site_across_bonds/output/LOG.ref
index f3a3447e93..b4934a2a39 100644
--- a/models/test_suite/CMSB_paper/dimer_views_site_across_bonds/output/LOG.ref
+++ b/models/test_suite/CMSB_paper/dimer_views_site_across_bonds/output/LOG.ref
@@ -42,11 +42,6 @@ R(c!1),R(c!1) =>
 		v R(c!1,cr),R(c!1,cr)
 		v R(c!1,cr),R(c!1,cr!R.n)
 	]
-R(c!1),R(c!1) => 
-	[
-		  R(c!1,cr!R.n),R(c!1,n!R.cr)
-		v R(c!1,cr),R(c!1,n)
-	]
 R(c!1),R(c!1) => 
 	[
 		  R(c!1,n!R.cr),R(c!1,n)
diff --git a/models/test_suite/CMSB_paper/dimer_views_site_across_bonds_double_bonds/output/LOG.ref b/models/test_suite/CMSB_paper/dimer_views_site_across_bonds_double_bonds/output/LOG.ref
index 4dac95c8fa..e0ed19a273 100644
--- a/models/test_suite/CMSB_paper/dimer_views_site_across_bonds_double_bonds/output/LOG.ref
+++ b/models/test_suite/CMSB_paper/dimer_views_site_across_bonds_double_bonds/output/LOG.ref
@@ -42,11 +42,6 @@ R(c!1),R(c!1) =>
 		v R(c!1,cr),R(c!1,cr)
 		v R(c!1,cr),R(c!1,cr!R.n)
 	]
-R(c!1),R(c!1) => 
-	[
-		  R(c!1,cr!R.n),R(c!1,n!R.cr)
-		v R(c!1,cr),R(c!1,n)
-	]
 R(c!1),R(c!1) => 
 	[
 		  R(c!1,n!R.cr),R(c!1,n)
diff --git a/models/test_suite/CMSB_paper/sos/output/LOG.ref b/models/test_suite/CMSB_paper/sos/output/LOG.ref
index c357504236..77d1f104f9 100644
--- a/models/test_suite/CMSB_paper/sos/output/LOG.ref
+++ b/models/test_suite/CMSB_paper/sos/output/LOG.ref
@@ -18,9 +18,9 @@ every agent may occur in the model
 EGF() => [ EGF(r) v EGF(r!EGFR.L) ]
 EGFR() => [ EGFR(Y1092~u?) v EGFR(Y1092~p?) ]
 EGFR() => [ EGFR(Y1172~u?) v EGFR(Y1172~p?) ]
-EGFR() => EGFR(Y1016~u)
 EGFR() => [ EGFR(L) v EGFR(L!EGF.r) ]
 EGFR() => [ EGFR(CR) v EGFR(CR!EGFR.CR) ]
+EGFR() => EGFR(Y1016~u)
 EGFR() => [ EGFR(N) v EGFR(N!EGFR.C) ]
 EGFR() => [ EGFR(C) v EGFR(C!EGFR.N) ]
 EGFR() => [ EGFR(Y1172) v EGFR(Y1172!Shc.PTB) ]
@@ -29,8 +29,8 @@ SoS() => [ SoS(PR) v SoS(PR!Grb2.SH3n) ]
 SoS() => SoS(S~u)
 Shc() => Shc(PTB~u?)
 Shc() => [ Shc(Y) v Shc(Y!Grb2.SH2) ]
-Shc() => [ Shc(Y~u?) v Shc(Y~p?) ]
 Shc() => [ Shc(PTB) v Shc(PTB!EGFR.Y1172) ]
+Shc() => [ Shc(Y~u?) v Shc(Y~p?) ]
 Grb2() => [ Grb2(SH2) v Grb2(SH2!Shc.Y) v Grb2(SH2!EGFR.Y1092) ]
 Grb2() => [ Grb2(SH3n) v Grb2(SH3n!SoS.PR) ]
 Grb2() => Grb2(SH2~u?)
diff --git a/models/test_suite/kasa_preprocessing/abc/output/LOG.ref b/models/test_suite/kasa_preprocessing/abc/output/LOG.ref
index f885c6a7b0..d261e886b9 100644
--- a/models/test_suite/kasa_preprocessing/abc/output/LOG.ref
+++ b/models/test_suite/kasa_preprocessing/abc/output/LOG.ref
@@ -697,12 +697,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for A(x!,c!)
 
 INTENSIONAL DESCRIPTION:
-Id=47
+Id=51
  Node(site_type:1<1)
   Id=0
    Leaf False 
 
-  Id=46
+  Id=50
    Node(site_type:1<2)
     Id=19
      Node(site_type:2<1)
@@ -727,26 +727,26 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for C(x1~,x2~,x1!,x2!)
 
 INTENSIONAL DESCRIPTION:
-Id=57
+Id=61
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=56
+  Id=60
    Node(site_type:1<1)
-    Id=55
+    Id=59
      Node(site_type:2<0)
       Id=0
        Leaf False 
 
-      Id=54
+      Id=58
        Node(site_type:2<1)
-        Id=53
+        Id=57
          Node(site_type:3<1)
           Id=0
            Leaf False 
 
-          Id=52
+          Id=56
            Node(site_type:3<2)
             Id=23
              Node(site_type:4<0)
@@ -926,19 +926,19 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for C(x1~,x2~,x1!,x2!)
 
 INTENSIONAL DESCRIPTION:
-Id=86
+Id=90
  Node(site_type:1<1)
   Id=0
    Leaf False 
 
-  Id=85
+  Id=89
    Node(site_type:1<2)
-    Id=84
+    Id=88
      Node(site_type:2<1)
       Id=0
        Leaf False 
 
-      Id=83
+      Id=87
        Node(site_type:2<2)
         Id=25
          Node(site_type:3<0)
@@ -979,12 +979,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for A(x!,c!)
 
 INTENSIONAL DESCRIPTION:
-Id=101
+Id=105
  Node(site_type:1<1)
   Id=0
    Leaf False 
 
-  Id=100
+  Id=104
    Node(site_type:1<2)
     Id=31
      Node(site_type:2<2)
@@ -1021,12 +1021,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for A(x!,c!)
 
 INTENSIONAL DESCRIPTION:
-Id=64
+Id=68
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=63
+  Id=67
    Node(site_type:1<1)
     Id=19
      Node(site_type:2<1)
@@ -1100,14 +1100,14 @@ every agent may occur in the model
 * Fixpoint iteration :
 ------------------------------------------------------------
 agent_type:0:A:cv_id:0
-Id=115
+Id=118
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=97
+  Id=101
    Node(site_type:1<2)
-    Id=96
+    Id=100
      Node(site_type:2<0)
       Id=0
        Leaf False 
@@ -1138,26 +1138,26 @@ Id=45
      Leaf False 
 
 agent_type:2:C:cv_id:0
-Id=91
+Id=95
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=90
+  Id=94
    Node(site_type:1<1)
-    Id=60
+    Id=64
      Node(site_type:2<0)
       Id=0
        Leaf False 
 
-      Id=59
+      Id=63
        Node(site_type:2<1)
-        Id=58
+        Id=62
          Node(site_type:3<0)
           Id=0
            Leaf False 
 
-          Id=52
+          Id=56
            Node(site_type:3<2)
             Id=23
              Node(site_type:4<0)
@@ -1178,23 +1178,23 @@ Id=91
         Id=0
          Leaf False 
 
-    Id=89
+    Id=93
      Node(site_type:1<2)
-      Id=88
+      Id=92
        Node(site_type:2<0)
         Id=0
          Leaf False 
 
-        Id=87
+        Id=91
          Node(site_type:2<1)
-          Id=75
+          Id=79
            Node(site_type:3<0)
             Id=0
              Leaf False 
 
-            Id=74
+            Id=78
              Node(site_type:3<1)
-              Id=73
+              Id=77
                Node(site_type:4<0)
                 Id=0
                  Leaf False 
@@ -1210,7 +1210,7 @@ Id=91
               Id=0
                Leaf False 
 
-          Id=83
+          Id=87
            Node(site_type:2<2)
             Id=25
              Node(site_type:3<0)
@@ -1246,12 +1246,12 @@ Id=91
 * Non relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=117
+Id=120
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=116
+  Id=119
    Node(site_type:1<3)
     Id=1
      Leaf True 
@@ -1266,7 +1266,7 @@ Id=111
   Id=0
    Leaf False 
 
-  Id=104
+  Id=48
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1281,7 +1281,7 @@ Id=111
   Id=0
    Leaf False 
 
-  Id=104
+  Id=48
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1306,7 +1306,7 @@ Id=45
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=48
+Id=52
  Node(site_type:2<0)
   Id=0
    Leaf False 
@@ -1321,7 +1321,7 @@ Id=48
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=122
+Id=125
  Node(site_type:3<0)
   Id=0
    Leaf False 
@@ -1341,7 +1341,7 @@ Id=111
   Id=0
    Leaf False 
 
-  Id=104
+  Id=48
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1362,12 +1362,12 @@ C() => [ C(x1~u?) v C(x1~p?) ]
 * Relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=117
+Id=120
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=116
+  Id=119
    Node(site_type:1<3)
     Id=1
      Leaf True 
@@ -1382,7 +1382,7 @@ Id=111
   Id=0
    Leaf False 
 
-  Id=104
+  Id=48
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1397,7 +1397,7 @@ Id=111
   Id=0
    Leaf False 
 
-  Id=104
+  Id=48
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1407,26 +1407,26 @@ Id=111
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=194
+Id=197
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=193
+  Id=196
    Node(site_type:0<1)
-    Id=186
+    Id=189
      Node(site_type:1<0)
       Id=0
        Leaf False 
 
-      Id=185
+      Id=188
        Node(site_type:1<1)
-        Id=153
+        Id=156
          Node(site_type:2<0)
           Id=0
            Leaf False 
 
-          Id=152
+          Id=155
            Node(site_type:2<2)
             Id=11
              Node(site_type:3<0)
@@ -1447,23 +1447,23 @@ Id=194
         Id=0
          Leaf False 
 
-    Id=192
+    Id=195
      Node(site_type:0<2)
-      Id=191
+      Id=194
        Node(site_type:1<0)
         Id=0
          Leaf False 
 
-        Id=190
+        Id=193
          Node(site_type:1<1)
-          Id=151
+          Id=154
            Node(site_type:2<0)
             Id=0
              Leaf False 
 
-            Id=150
+            Id=153
              Node(site_type:2<1)
-              Id=122
+              Id=125
                Node(site_type:3<0)
                 Id=0
                  Leaf False 
@@ -1479,14 +1479,14 @@ Id=194
               Id=0
                Leaf False 
 
-          Id=189
+          Id=192
            Node(site_type:1<2)
-            Id=188
+            Id=191
              Node(site_type:2<0)
               Id=0
                Leaf False 
 
-              Id=187
+              Id=190
                Node(site_type:2<1)
                 Id=11
                  Node(site_type:3<0)
@@ -1526,12 +1526,12 @@ C() =>
 * Properties of pairs of bonds
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=117
+Id=120
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=116
+  Id=119
    Node(site_type:1<3)
     Id=1
      Leaf True 
@@ -1546,7 +1546,7 @@ Id=111
   Id=0
    Leaf False 
 
-  Id=104
+  Id=48
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1561,7 +1561,7 @@ Id=111
   Id=0
    Leaf False 
 
-  Id=104
+  Id=48
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1586,7 +1586,7 @@ Id=45
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=48
+Id=52
  Node(site_type:2<0)
   Id=0
    Leaf False 
@@ -1601,7 +1601,7 @@ Id=48
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=122
+Id=125
  Node(site_type:3<0)
   Id=0
    Leaf False 
@@ -1621,7 +1621,7 @@ Id=111
   Id=0
    Leaf False 
 
-  Id=104
+  Id=48
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1631,12 +1631,12 @@ Id=111
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=117
+Id=120
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=116
+  Id=119
    Node(site_type:1<3)
     Id=1
      Leaf True 
@@ -1651,7 +1651,7 @@ Id=111
   Id=0
    Leaf False 
 
-  Id=104
+  Id=48
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1666,7 +1666,7 @@ Id=111
   Id=0
    Leaf False 
 
-  Id=104
+  Id=48
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1676,26 +1676,26 @@ Id=111
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=194
+Id=197
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=193
+  Id=196
    Node(site_type:0<1)
-    Id=186
+    Id=189
      Node(site_type:1<0)
       Id=0
        Leaf False 
 
-      Id=185
+      Id=188
        Node(site_type:1<1)
-        Id=153
+        Id=156
          Node(site_type:2<0)
           Id=0
            Leaf False 
 
-          Id=152
+          Id=155
            Node(site_type:2<2)
             Id=11
              Node(site_type:3<0)
@@ -1716,23 +1716,23 @@ Id=194
         Id=0
          Leaf False 
 
-    Id=192
+    Id=195
      Node(site_type:0<2)
-      Id=191
+      Id=194
        Node(site_type:1<0)
         Id=0
          Leaf False 
 
-        Id=190
+        Id=193
          Node(site_type:1<1)
-          Id=151
+          Id=154
            Node(site_type:2<0)
             Id=0
              Leaf False 
 
-            Id=150
+            Id=153
              Node(site_type:2<1)
-              Id=122
+              Id=125
                Node(site_type:3<0)
                 Id=0
                  Leaf False 
@@ -1748,14 +1748,14 @@ Id=194
               Id=0
                Leaf False 
 
-          Id=189
+          Id=192
            Node(site_type:1<2)
-            Id=188
+            Id=191
              Node(site_type:2<0)
               Id=0
                Leaf False 
 
-              Id=187
+              Id=190
                Node(site_type:2<1)
                 Id=11
                  Node(site_type:3<0)
diff --git a/models/test_suite/reachability_analysis/atomic_parallel_bonds/output/LOG.ref b/models/test_suite/reachability_analysis/atomic_parallel_bonds/output/LOG.ref
index 87d14e883a..e1cc02746a 100644
--- a/models/test_suite/reachability_analysis/atomic_parallel_bonds/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/atomic_parallel_bonds/output/LOG.ref
@@ -366,7 +366,7 @@ Id=15
 * Non relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=18
+Id=20
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -381,12 +381,12 @@ Id=18
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=21
+Id=23
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=20
+  Id=22
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -396,7 +396,7 @@ Id=21
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=18
+Id=20
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -411,12 +411,12 @@ Id=18
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=21
+Id=23
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=20
+  Id=22
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -434,12 +434,12 @@ B() => [ B(z) v B(z!A.z) ]
 * Relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=26
+Id=28
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=25
+  Id=27
    Node(site_type:0<1)
     Id=3
      Node(site_type:1<0)
@@ -454,7 +454,7 @@ Id=26
         Id=0
          Leaf False 
 
-    Id=24
+    Id=26
      Node(site_type:0<2)
       Id=17
        Node(site_type:1<1)
@@ -474,12 +474,12 @@ Id=26
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=26
+Id=28
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=25
+  Id=27
    Node(site_type:0<1)
     Id=3
      Node(site_type:1<0)
@@ -494,7 +494,7 @@ Id=26
         Id=0
          Leaf False 
 
-    Id=24
+    Id=26
      Node(site_type:0<2)
       Id=17
        Node(site_type:1<1)
@@ -524,7 +524,7 @@ B(z!A.z) <=> B(t!A.t)
 A(t!B.t,z!B.z) => A(t!2,z!1),B(t!2,z!1)
 B(t!A.t,z!A.z) => B(t!2,z!1),A(t!2,z!1)
 INTENSIONAL DESCRIPTION:
-Id=18
+Id=20
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -539,12 +539,12 @@ Id=18
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=21
+Id=23
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=20
+  Id=22
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -554,7 +554,7 @@ Id=21
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=18
+Id=20
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -569,12 +569,12 @@ Id=18
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=21
+Id=23
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=20
+  Id=22
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -584,12 +584,12 @@ Id=21
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=26
+Id=28
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=25
+  Id=27
    Node(site_type:0<1)
     Id=3
      Node(site_type:1<0)
@@ -604,7 +604,7 @@ Id=26
         Id=0
          Leaf False 
 
-    Id=24
+    Id=26
      Node(site_type:0<2)
       Id=17
        Node(site_type:1<1)
@@ -624,12 +624,12 @@ Id=26
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=26
+Id=28
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=25
+  Id=27
    Node(site_type:0<1)
     Id=3
      Node(site_type:1<0)
@@ -644,7 +644,7 @@ Id=26
         Id=0
          Leaf False 
 
-    Id=24
+    Id=26
      Node(site_type:0<2)
       Id=17
        Node(site_type:1<1)
diff --git a/models/test_suite/reachability_analysis/low_res_contact_map/output/LOG.ref b/models/test_suite/reachability_analysis/low_res_contact_map/output/LOG.ref
index b192a18084..2ecba39ab4 100644
--- a/models/test_suite/reachability_analysis/low_res_contact_map/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/low_res_contact_map/output/LOG.ref
@@ -21,8 +21,8 @@ C cannot occur in the model
 * Non relational properties:
 ------------------------------------------------------------
 A() => [ A(z~u?) v A(z~p?) ]
-A() => [ A(y~u?) v A(y~p?) ]
 A() => A(z)
+A() => [ A(y~u?) v A(y~p?) ]
 A() => A(y)
 
 ------------------------------------------------------------
diff --git a/models/test_suite/reachability_analysis/medium_res_contact_map/output/LOG.ref b/models/test_suite/reachability_analysis/medium_res_contact_map/output/LOG.ref
index e8de0ca8fd..51edcc05a2 100644
--- a/models/test_suite/reachability_analysis/medium_res_contact_map/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/medium_res_contact_map/output/LOG.ref
@@ -20,8 +20,8 @@ C cannot occur in the model
 * Non relational properties:
 ------------------------------------------------------------
 A() => [ A(z~u?) v A(z~p?) ]
-A() => [ A(y~u?) v A(y~p?) ]
 A() => A(z)
+A() => [ A(y~u?) v A(y~p?) ]
 A() => A(y)
 
 ------------------------------------------------------------
diff --git a/models/test_suite/reachability_analysis/parallel_bond_precondition1/output/LOG.ref b/models/test_suite/reachability_analysis/parallel_bond_precondition1/output/LOG.ref
index 21bfe92589..546d030d05 100644
--- a/models/test_suite/reachability_analysis/parallel_bond_precondition1/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/parallel_bond_precondition1/output/LOG.ref
@@ -711,7 +711,7 @@ every agent may occur in the model
 * Fixpoint iteration :
 ------------------------------------------------------------
 agent_type:0:A:cv_id:0
-Id=26
+Id=28
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -749,7 +749,7 @@ Id=3
      Leaf False 
 
 agent_type:1:B:cv_id:0
-Id=26
+Id=28
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -791,13 +791,13 @@ Id=3
 * Non relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=17
- Node(site_type:2<0)
+Id=31
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=12
-   Node(site_type:2<2)
+  Id=8
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -806,13 +806,13 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
+Id=17
+ Node(site_type:2<0)
   Id=0
    Leaf False 
 
-  Id=8
-   Node(site_type:1<2)
+  Id=12
+   Node(site_type:2<2)
     Id=1
      Leaf True 
 
@@ -821,12 +821,12 @@ Id=29
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=31
+Id=33
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=30
+  Id=32
    Node(site_type:0<1)
     Id=1
      Leaf True 
@@ -836,13 +836,13 @@ Id=31
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=17
- Node(site_type:2<0)
+Id=31
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=12
-   Node(site_type:2<2)
+  Id=8
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -851,13 +851,13 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
+Id=17
+ Node(site_type:2<0)
   Id=0
    Leaf False 
 
-  Id=8
-   Node(site_type:1<2)
+  Id=12
+   Node(site_type:2<2)
     Id=1
      Leaf True 
 
@@ -866,12 +866,12 @@ Id=29
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=31
+Id=33
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=30
+  Id=32
    Node(site_type:0<1)
     Id=1
      Leaf True 
@@ -880,24 +880,24 @@ Id=31
      Leaf False 
 
 EXTENSIONAL DESCRIPTION:
-A() => [ A(t) v A(t!B.t) ]
 A() => [ A(z) v A(z!B.z) ]
+A() => [ A(t) v A(t!B.t) ]
 A() => A(x~u)
-B() => [ B(t) v B(t!A.t) ]
 B() => [ B(z) v B(z!A.z) ]
+B() => [ B(t) v B(t!A.t) ]
 B() => B(x~u)
 
 ------------------------------------------------------------
 * Relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=17
- Node(site_type:2<0)
+Id=31
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=12
-   Node(site_type:2<2)
+  Id=8
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -906,13 +906,13 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
+Id=17
+ Node(site_type:2<0)
   Id=0
    Leaf False 
 
-  Id=8
-   Node(site_type:1<2)
+  Id=12
+   Node(site_type:2<2)
     Id=1
      Leaf True 
 
@@ -921,12 +921,12 @@ Id=29
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=31
+Id=33
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=30
+  Id=32
    Node(site_type:0<1)
     Id=1
      Leaf True 
@@ -936,13 +936,13 @@ Id=31
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=17
- Node(site_type:2<0)
+Id=31
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=12
-   Node(site_type:2<2)
+  Id=8
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -951,13 +951,13 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
+Id=17
+ Node(site_type:2<0)
   Id=0
    Leaf False 
 
-  Id=8
-   Node(site_type:1<2)
+  Id=12
+   Node(site_type:2<2)
     Id=1
      Leaf True 
 
@@ -966,12 +966,12 @@ Id=29
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=31
+Id=33
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=30
+  Id=32
    Node(site_type:0<1)
     Id=1
      Leaf True 
@@ -994,6 +994,21 @@ A(t!1),B(t!1) =>
 A(t!B.t,z!B.z) => A(t!2,z!1),B(z!1),B(t!2)
 B(t!A.t,z!A.z) => B(t!2,z!1),A(z!1),A(t!2)
 INTENSIONAL DESCRIPTION:
+Id=31
+ Node(site_type:1<0)
+  Id=0
+   Leaf False 
+
+  Id=8
+   Node(site_type:1<2)
+    Id=1
+     Leaf True 
+
+    Id=0
+     Leaf False 
+
+EXTENSIONAL DESCRIPTION:
+INTENSIONAL DESCRIPTION:
 Id=17
  Node(site_type:2<0)
   Id=0
@@ -1009,13 +1024,13 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
+Id=33
+ Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=8
-   Node(site_type:1<2)
+  Id=32
+   Node(site_type:0<1)
     Id=1
      Leaf True 
 
@@ -1025,12 +1040,12 @@ Id=29
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
 Id=31
- Node(site_type:0<0)
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=30
-   Node(site_type:0<1)
+  Id=8
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -1054,13 +1069,13 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
+Id=33
+ Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=8
-   Node(site_type:1<2)
+  Id=32
+   Node(site_type:0<1)
     Id=1
      Leaf True 
 
@@ -1070,12 +1085,12 @@ Id=29
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
 Id=31
- Node(site_type:0<0)
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=30
-   Node(site_type:0<1)
+  Id=8
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -1099,13 +1114,13 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
+Id=33
+ Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=8
-   Node(site_type:1<2)
+  Id=32
+   Node(site_type:0<1)
     Id=1
      Leaf True 
 
@@ -1115,12 +1130,12 @@ Id=29
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
 Id=31
- Node(site_type:0<0)
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=30
-   Node(site_type:0<1)
+  Id=8
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -1144,27 +1159,12 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
-  Id=0
-   Leaf False 
-
-  Id=8
-   Node(site_type:1<2)
-    Id=1
-     Leaf True 
-
-    Id=0
-     Leaf False 
-
-EXTENSIONAL DESCRIPTION:
-INTENSIONAL DESCRIPTION:
-Id=31
+Id=33
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=30
+  Id=32
    Node(site_type:0<1)
     Id=1
      Leaf True 
@@ -1177,19 +1177,19 @@ EXTENSIONAL DESCRIPTION:
 * Export Views domain - non relational properties to JSon (internal constraints_list):
 ------------------------------------------------------------
 B()=> [B(x~u)]
-B()=> [
-		  B(z)
-		v B(z!A.z)]
 B()=> [
 		  B(t)
 		v B(t!A.t)]
+B()=> [
+		  B(z)
+		v B(z!A.z)]
 A()=> [A(x~u)]
-A()=> [
-		  A(z)
-		v A(z!B.z)]
 A()=> [
 		  A(t)
 		v A(t!B.t)]
+A()=> [
+		  A(z)
+		v A(z!B.z)]
 
 ------------------------------------------------------------
 * Export Views domain - relational properties to JSon (internal constraints_list):
diff --git a/models/test_suite/reachability_analysis/parallel_bond_precondition2/output/LOG.ref b/models/test_suite/reachability_analysis/parallel_bond_precondition2/output/LOG.ref
index 19a6971121..0f40a70557 100644
--- a/models/test_suite/reachability_analysis/parallel_bond_precondition2/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/parallel_bond_precondition2/output/LOG.ref
@@ -671,7 +671,7 @@ every agent may occur in the model
 * Fixpoint iteration :
 ------------------------------------------------------------
 agent_type:0:A:cv_id:0
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -709,7 +709,7 @@ Id=3
      Leaf False 
 
 agent_type:1:B:cv_id:0
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -751,13 +751,13 @@ Id=3
 * Non relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=17
- Node(site_type:2<0)
+Id=31
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=12
-   Node(site_type:2<2)
+  Id=8
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -766,13 +766,13 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
+Id=17
+ Node(site_type:2<0)
   Id=0
    Leaf False 
 
-  Id=8
-   Node(site_type:1<2)
+  Id=12
+   Node(site_type:2<2)
     Id=1
      Leaf True 
 
@@ -781,12 +781,12 @@ Id=29
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=31
+Id=33
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=30
+  Id=32
    Node(site_type:0<1)
     Id=1
      Leaf True 
@@ -796,13 +796,13 @@ Id=31
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=17
- Node(site_type:2<0)
+Id=31
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=12
-   Node(site_type:2<2)
+  Id=8
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -811,13 +811,13 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
+Id=17
+ Node(site_type:2<0)
   Id=0
    Leaf False 
 
-  Id=8
-   Node(site_type:1<2)
+  Id=12
+   Node(site_type:2<2)
     Id=1
      Leaf True 
 
@@ -826,12 +826,12 @@ Id=29
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=31
+Id=33
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=30
+  Id=32
    Node(site_type:0<1)
     Id=1
      Leaf True 
@@ -840,24 +840,24 @@ Id=31
      Leaf False 
 
 EXTENSIONAL DESCRIPTION:
-A() => [ A(t) v A(t!B.t) ]
 A() => [ A(z) v A(z!B.z) ]
+A() => [ A(t) v A(t!B.t) ]
 A() => A(x~u)
-B() => [ B(t) v B(t!A.t) ]
 B() => [ B(z) v B(z!A.z) ]
+B() => [ B(t) v B(t!A.t) ]
 B() => B(x~u)
 
 ------------------------------------------------------------
 * Relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=17
- Node(site_type:2<0)
+Id=31
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=12
-   Node(site_type:2<2)
+  Id=8
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -866,13 +866,13 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
+Id=17
+ Node(site_type:2<0)
   Id=0
    Leaf False 
 
-  Id=8
-   Node(site_type:1<2)
+  Id=12
+   Node(site_type:2<2)
     Id=1
      Leaf True 
 
@@ -881,12 +881,12 @@ Id=29
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=31
+Id=33
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=30
+  Id=32
    Node(site_type:0<1)
     Id=1
      Leaf True 
@@ -896,13 +896,13 @@ Id=31
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=17
- Node(site_type:2<0)
+Id=31
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=12
-   Node(site_type:2<2)
+  Id=8
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -911,13 +911,13 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
+Id=17
+ Node(site_type:2<0)
   Id=0
    Leaf False 
 
-  Id=8
-   Node(site_type:1<2)
+  Id=12
+   Node(site_type:2<2)
     Id=1
      Leaf True 
 
@@ -926,12 +926,12 @@ Id=29
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=31
+Id=33
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=30
+  Id=32
    Node(site_type:0<1)
     Id=1
      Leaf True 
@@ -954,6 +954,21 @@ A(t!1),B(t!1) =>
 A(t!B.t,z!B.z) => A(t!2,z!1),B(z!1),B(t!2)
 B(t!A.t,z!A.z) => B(t!2,z!1),A(z!1),A(t!2)
 INTENSIONAL DESCRIPTION:
+Id=31
+ Node(site_type:1<0)
+  Id=0
+   Leaf False 
+
+  Id=8
+   Node(site_type:1<2)
+    Id=1
+     Leaf True 
+
+    Id=0
+     Leaf False 
+
+EXTENSIONAL DESCRIPTION:
+INTENSIONAL DESCRIPTION:
 Id=17
  Node(site_type:2<0)
   Id=0
@@ -969,13 +984,13 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
+Id=33
+ Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=8
-   Node(site_type:1<2)
+  Id=32
+   Node(site_type:0<1)
     Id=1
      Leaf True 
 
@@ -985,12 +1000,12 @@ Id=29
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
 Id=31
- Node(site_type:0<0)
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=30
-   Node(site_type:0<1)
+  Id=8
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -1014,13 +1029,13 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
+Id=33
+ Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=8
-   Node(site_type:1<2)
+  Id=32
+   Node(site_type:0<1)
     Id=1
      Leaf True 
 
@@ -1030,12 +1045,12 @@ Id=29
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
 Id=31
- Node(site_type:0<0)
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=30
-   Node(site_type:0<1)
+  Id=8
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -1059,13 +1074,13 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
+Id=33
+ Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=8
-   Node(site_type:1<2)
+  Id=32
+   Node(site_type:0<1)
     Id=1
      Leaf True 
 
@@ -1075,12 +1090,12 @@ Id=29
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
 Id=31
- Node(site_type:0<0)
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=30
-   Node(site_type:0<1)
+  Id=8
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -1104,27 +1119,12 @@ Id=17
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=29
- Node(site_type:1<0)
-  Id=0
-   Leaf False 
-
-  Id=8
-   Node(site_type:1<2)
-    Id=1
-     Leaf True 
-
-    Id=0
-     Leaf False 
-
-EXTENSIONAL DESCRIPTION:
-INTENSIONAL DESCRIPTION:
-Id=31
+Id=33
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=30
+  Id=32
    Node(site_type:0<1)
     Id=1
      Leaf True 
@@ -1137,19 +1137,19 @@ EXTENSIONAL DESCRIPTION:
 * Export Views domain - non relational properties to JSon (internal constraints_list):
 ------------------------------------------------------------
 B()=> [B(x~u)]
-B()=> [
-		  B(z)
-		v B(z!A.z)]
 B()=> [
 		  B(t)
 		v B(t!A.t)]
+B()=> [
+		  B(z)
+		v B(z!A.z)]
 A()=> [A(x~u)]
-A()=> [
-		  A(z)
-		v A(z!B.z)]
 A()=> [
 		  A(t)
 		v A(t!B.t)]
+A()=> [
+		  A(z)
+		v A(z!B.z)]
 
 ------------------------------------------------------------
 * Export Views domain - relational properties to JSon (internal constraints_list):
diff --git a/models/test_suite/reachability_analysis/parallel_bonds_complex_init_maybe/output/LOG.ref b/models/test_suite/reachability_analysis/parallel_bonds_complex_init_maybe/output/LOG.ref
index cd06b937ef..21f9223eae 100644
--- a/models/test_suite/reachability_analysis/parallel_bonds_complex_init_maybe/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/parallel_bonds_complex_init_maybe/output/LOG.ref
@@ -595,12 +595,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for A(x~,z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=26
+Id=28
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=25
+  Id=27
    Node(site_type:1<2)
     Id=17
      Node(site_type:2<0)
@@ -636,12 +636,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for B(x~,z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=33
+Id=35
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=32
+  Id=34
    Node(site_type:1<1)
     Id=17
      Node(site_type:2<0)
@@ -791,7 +791,7 @@ Id=70
 
       Id=44
        Node(site_type:2<1)
-        Id=27
+        Id=29
          Node(site_type:3<0)
           Id=0
            Leaf False 
@@ -851,12 +851,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for A(x~,z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=72
+Id=78
  Node(site_type:1<1)
   Id=0
    Leaf False 
 
-  Id=71
+  Id=77
    Node(site_type:1<2)
     Id=21
      Node(site_type:2<1)
@@ -891,12 +891,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for B(x~,z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=72
+Id=78
  Node(site_type:1<1)
   Id=0
    Leaf False 
 
-  Id=71
+  Id=77
    Node(site_type:1<2)
     Id=21
      Node(site_type:2<1)
@@ -1061,16 +1061,16 @@ EXTENSIONAL DESCRIPTION:
 
 		Updating the views for B(x~,z!,t!)
 
-	Applying rule r4 (File "parallel_bonds.ka", line 11, characters 4-50:):
+	Applying rule r1 (File "parallel_bonds.ka", line 8, characters 4-24:):
 		the precondition is satisfied
 
-		Updating the views for A(x~,z!,t!)
-
 		Updating the views for B(x~,z!,t!)
 
-	Applying rule r1 (File "parallel_bonds.ka", line 8, characters 4-24:):
+	Applying rule r4 (File "parallel_bonds.ka", line 11, characters 4-50:):
 		the precondition is satisfied
 
+		Updating the views for A(x~,z!,t!)
+
 		Updating the views for B(x~,z!,t!)
 
 	Applying rule r5 (File "parallel_bonds.ka", line 12, characters 4-50:):
@@ -1110,16 +1110,16 @@ Id=102
   Id=0
    Leaf False 
 
-  Id=75
+  Id=81
    Node(site_type:1<2)
-    Id=74
+    Id=80
      Node(site_type:2<0)
       Id=0
        Leaf False 
 
-      Id=73
+      Id=79
        Node(site_type:2<2)
-        Id=27
+        Id=29
          Node(site_type:3<0)
           Id=0
            Leaf False 
@@ -1144,16 +1144,16 @@ Id=102
   Id=0
    Leaf False 
 
-  Id=75
+  Id=81
    Node(site_type:1<2)
-    Id=74
+    Id=80
      Node(site_type:2<0)
       Id=0
        Leaf False 
 
-      Id=73
+      Id=79
        Node(site_type:2<2)
-        Id=27
+        Id=29
          Node(site_type:3<0)
           Id=0
            Leaf False 
@@ -1369,23 +1369,6 @@ EXTENSIONAL DESCRIPTION:
 ------------------------------------------------------------
 * Properties in connected agents
 ------------------------------------------------------------
-A(z!1),B(z!1) => 
-	[
-		  A(x~p,z!1),B(t,z!1)
-		v A(x~p,z!1),B(t!A.t,z!1)
-		v A(x~u,z!1),B(t!A.t,z!1)
-	]
-A(z!1),B(z!1) => 
-	[
-		  A(t!B.t,z!1),B(x~u,z!1)
-		v A(t!B.t,z!1),B(x~p,z!1)
-		v A(t,z!1),B(x~p,z!1)
-	]
-A(z!1),B(z!1) => 
-	[
-		  A(t!B.t,z!1),B(t!A.t,z!1)
-		v A(t,z!1),B(t,z!1)
-	]
 ------------------------------------------------------------
 * Properties of pairs of bonds
 ------------------------------------------------------------
@@ -1600,17 +1583,6 @@ A()=> [
 ------------------------------------------------------------
 * Export Connected agents to JSon (internal constraints_list):
 ------------------------------------------------------------
-A(z!1),B(z!1)=> [
-		  A(x~p,z!1),B(t,z!1)
-		v A(x~p,z!1),B(t!A.t,z!1)
-		v A(x~u,z!1),B(t!A.t,z!1)]
-A(z!1),B(z!1)=> [
-		  A(t!B.t,z!1),B(x~u,z!1)
-		v A(t!B.t,z!1),B(x~p,z!1)
-		v A(t,z!1),B(x~p,z!1)]
-A(z!1),B(z!1)=> [
-		  A(t!B.t,z!1),B(t!A.t,z!1)
-		v A(t,z!1),B(t,z!1)]
 
 ------------------------------------------------------------
 * Export Parallel bonds to JSon (internal constraints_list):
diff --git a/models/test_suite/reachability_analysis/parallel_bonds_complex_init_yes/output/LOG.ref b/models/test_suite/reachability_analysis/parallel_bonds_complex_init_yes/output/LOG.ref
index 76c49c7201..60725bd87e 100644
--- a/models/test_suite/reachability_analysis/parallel_bonds_complex_init_yes/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/parallel_bonds_complex_init_yes/output/LOG.ref
@@ -612,12 +612,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for A(x~,z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=30
+Id=32
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=29
+  Id=31
    Node(site_type:1<1)
     Id=19
      Node(site_type:2<0)
@@ -652,12 +652,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for B(x~,z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=30
+Id=32
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=29
+  Id=31
    Node(site_type:1<1)
     Id=19
      Node(site_type:2<0)
@@ -792,12 +792,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for B(x~,z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=62
+Id=64
  Node(site_type:1<1)
   Id=0
    Leaf False 
 
-  Id=61
+  Id=63
    Node(site_type:1<2)
     Id=47
      Node(site_type:2<0)
@@ -806,7 +806,7 @@ Id=62
 
       Id=46
        Node(site_type:2<1)
-        Id=31
+        Id=33
          Node(site_type:3<0)
           Id=0
            Leaf False 
@@ -859,14 +859,14 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for A(x~,z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=72
+Id=74
  Node(site_type:1<1)
   Id=0
    Leaf False 
 
-  Id=71
+  Id=73
    Node(site_type:1<2)
-    Id=58
+    Id=60
      Node(site_type:2<0)
       Id=0
        Leaf False 
@@ -905,12 +905,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for A(x~,z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=80
+Id=86
  Node(site_type:1<1)
   Id=0
    Leaf False 
 
-  Id=79
+  Id=85
    Node(site_type:1<2)
     Id=23
      Node(site_type:2<1)
@@ -945,12 +945,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for B(x~,z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=80
+Id=86
  Node(site_type:1<1)
   Id=0
    Leaf False 
 
-  Id=79
+  Id=85
    Node(site_type:1<2)
     Id=23
      Node(site_type:2<1)
@@ -1077,16 +1077,16 @@ EXTENSIONAL DESCRIPTION:
 
 		Updating the views for B(x~,z!,t!)
 
-	Applying rule r4 (File "parallel_bonds.ka", line 11, characters 4-50:):
+	Applying rule r1 (File "parallel_bonds.ka", line 8, characters 4-24:):
 		the precondition is satisfied
 
-		Updating the views for A(x~,z!,t!)
-
 		Updating the views for B(x~,z!,t!)
 
-	Applying rule r1 (File "parallel_bonds.ka", line 8, characters 4-24:):
+	Applying rule r4 (File "parallel_bonds.ka", line 11, characters 4-50:):
 		the precondition is satisfied
 
+		Updating the views for A(x~,z!,t!)
+
 		Updating the views for B(x~,z!,t!)
 
 	Applying rule r5 (File "parallel_bonds.ka", line 12, characters 4-50:):
@@ -1124,25 +1124,6 @@ EXTENSIONAL DESCRIPTION:
 		the precondition is satisfied
 
 		Updating the views for A(x~,z!,t!)
-
-	Applying rule r1 (File "parallel_bonds.ka", line 8, characters 4-24:):
-		the precondition is satisfied
-
-		Updating the views for B(x~,z!,t!)
-
-	Applying rule r4 (File "parallel_bonds.ka", line 11, characters 4-50:):
-		the precondition is satisfied
-
-		Updating the views for A(x~,z!,t!)
-
-		Updating the views for B(x~,z!,t!)
-
-	Applying rule r5 (File "parallel_bonds.ka", line 12, characters 4-50:):
-		the precondition is satisfied
-
-		Updating the views for A(x~,z!,t!)
-
-		Updating the views for B(x~,z!,t!)
 ------------------------------------------------------------
 every rule may be applied
 ------------------------------------------------------------
@@ -1152,12 +1133,12 @@ every agent may occur in the model
 * Fixpoint iteration :
 ------------------------------------------------------------
 agent_type:0:A:cv_id:0
-Id=85
+Id=91
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=84
+  Id=90
    Node(site_type:1<1)
     Id=47
      Node(site_type:2<0)
@@ -1166,7 +1147,7 @@ Id=85
 
       Id=46
        Node(site_type:2<1)
-        Id=31
+        Id=33
          Node(site_type:3<0)
           Id=0
            Leaf False 
@@ -1197,16 +1178,16 @@ Id=85
           Id=0
            Leaf False 
 
-    Id=83
+    Id=89
      Node(site_type:1<2)
-      Id=82
+      Id=88
        Node(site_type:2<0)
         Id=0
          Leaf False 
 
-        Id=81
+        Id=87
          Node(site_type:2<2)
-          Id=31
+          Id=33
            Node(site_type:3<0)
             Id=0
              Leaf False 
@@ -1231,16 +1212,16 @@ Id=106
   Id=0
    Leaf False 
 
-  Id=83
+  Id=89
    Node(site_type:1<2)
-    Id=82
+    Id=88
      Node(site_type:2<0)
       Id=0
        Leaf False 
 
-      Id=81
+      Id=87
        Node(site_type:2<2)
-        Id=31
+        Id=33
          Node(site_type:3<0)
           Id=0
            Leaf False 
@@ -1264,7 +1245,7 @@ Id=106
 * Non relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=75
+Id=77
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1279,7 +1260,7 @@ Id=75
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=66
+Id=68
  Node(site_type:2<0)
   Id=0
    Leaf False 
@@ -1294,12 +1275,12 @@ Id=66
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=77
+Id=78
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=76
+  Id=58
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1309,7 +1290,7 @@ Id=77
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=75
+Id=77
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1324,7 +1305,7 @@ Id=75
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=66
+Id=68
  Node(site_type:2<0)
   Id=0
    Leaf False 
@@ -1339,12 +1320,12 @@ Id=66
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=77
+Id=78
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=76
+  Id=58
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1371,14 +1352,14 @@ Id=118
 
   Id=117
    Node(site_type:0<1)
-    Id=87
+    Id=80
      Node(site_type:1<0)
       Id=0
        Leaf False 
 
-      Id=86
+      Id=79
        Node(site_type:1<1)
-        Id=66
+        Id=68
          Node(site_type:2<0)
           Id=0
            Leaf False 
@@ -1391,7 +1372,7 @@ Id=118
             Id=0
              Leaf False 
 
-        Id=40
+        Id=54
          Node(site_type:1<2)
           Id=21
            Node(site_type:2<1)
@@ -1411,14 +1392,14 @@ Id=118
 
     Id=116
      Node(site_type:0<2)
-      Id=98
+      Id=81
        Node(site_type:1<0)
         Id=0
          Leaf False 
 
-        Id=69
+        Id=71
          Node(site_type:1<2)
-          Id=66
+          Id=68
            Node(site_type:2<0)
             Id=0
              Leaf False 
@@ -1439,7 +1420,7 @@ Id=118
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=75
+Id=77
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1454,7 +1435,7 @@ Id=75
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=66
+Id=68
  Node(site_type:2<0)
   Id=0
    Leaf False 
@@ -1469,12 +1450,12 @@ Id=66
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=77
+Id=78
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=76
+  Id=58
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1502,17 +1483,6 @@ A(z!1),B(z!1) =>
 		v A(x~p,z!1),B(t!A.t,z!1)
 		v A(x~u,z!1),B(t!A.t,z!1)
 	]
-A(z!1),B(z!1) => 
-	[
-		  A(t!B.t,z!1),B(x~u,z!1)
-		v A(t!B.t,z!1),B(x~p,z!1)
-		v A(t,z!1),B(x~p,z!1)
-	]
-A(z!1),B(z!1) => 
-	[
-		  A(t!B.t,z!1),B(t!A.t,z!1)
-		v A(t,z!1),B(t,z!1)
-	]
 A(t!1),B(t!1) => 
 	[
 		  A(t!1,z!B.z),B(t!1,z!A.z)
@@ -1525,7 +1495,7 @@ A(t!1),B(t!1) =>
 A(t!B.t,z!B.z) => A(t!2,z!1),B(t!2,z!1)
 
 INTENSIONAL DESCRIPTION:
-Id=75
+Id=77
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1540,7 +1510,7 @@ Id=75
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=66
+Id=68
  Node(site_type:2<0)
   Id=0
    Leaf False 
@@ -1555,12 +1525,12 @@ Id=66
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=77
+Id=78
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=76
+  Id=58
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1570,7 +1540,7 @@ Id=77
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=75
+Id=77
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1585,7 +1555,7 @@ Id=75
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=66
+Id=68
  Node(site_type:2<0)
   Id=0
    Leaf False 
@@ -1600,12 +1570,12 @@ Id=66
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=77
+Id=78
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=76
+  Id=58
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1622,14 +1592,14 @@ Id=118
 
   Id=117
    Node(site_type:0<1)
-    Id=87
+    Id=80
      Node(site_type:1<0)
       Id=0
        Leaf False 
 
-      Id=86
+      Id=79
        Node(site_type:1<1)
-        Id=66
+        Id=68
          Node(site_type:2<0)
           Id=0
            Leaf False 
@@ -1642,7 +1612,7 @@ Id=118
             Id=0
              Leaf False 
 
-        Id=40
+        Id=54
          Node(site_type:1<2)
           Id=21
            Node(site_type:2<1)
@@ -1662,14 +1632,14 @@ Id=118
 
     Id=116
      Node(site_type:0<2)
-      Id=98
+      Id=81
        Node(site_type:1<0)
         Id=0
          Leaf False 
 
-        Id=69
+        Id=71
          Node(site_type:1<2)
-          Id=66
+          Id=68
            Node(site_type:2<0)
             Id=0
              Leaf False 
@@ -1690,7 +1660,7 @@ Id=118
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=75
+Id=77
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1705,7 +1675,7 @@ Id=75
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=66
+Id=68
  Node(site_type:2<0)
   Id=0
    Leaf False 
@@ -1720,12 +1690,12 @@ Id=66
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=77
+Id=78
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=76
+  Id=58
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1789,13 +1759,6 @@ A(z!1),B(z!1)=> [
 		  A(x~p,z!1),B(t,z!1)
 		v A(x~p,z!1),B(t!A.t,z!1)
 		v A(x~u,z!1),B(t!A.t,z!1)]
-A(z!1),B(z!1)=> [
-		  A(t!B.t,z!1),B(x~u,z!1)
-		v A(t!B.t,z!1),B(x~p,z!1)
-		v A(t,z!1),B(x~p,z!1)]
-A(z!1),B(z!1)=> [
-		  A(t!B.t,z!1),B(t!A.t,z!1)
-		v A(t,z!1),B(t,z!1)]
 A(t!1),B(t!1)=> [
 		  A(t!1,z!B.z),B(t!1,z!A.z)
 		v A(t!1,z),B(t!1,z)
diff --git a/models/test_suite/reachability_analysis/parallel_bonds_init_maybe/output/LOG.ref b/models/test_suite/reachability_analysis/parallel_bonds_init_maybe/output/LOG.ref
index eb77cbd001..92be81f3f5 100644
--- a/models/test_suite/reachability_analysis/parallel_bonds_init_maybe/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/parallel_bonds_init_maybe/output/LOG.ref
@@ -642,7 +642,7 @@ every agent may occur in the model
 * Fixpoint iteration :
 ------------------------------------------------------------
 agent_type:0:A:cv_id:0
-Id=29
+Id=31
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -666,7 +666,7 @@ Id=29
      Leaf False 
 
 agent_type:1:B:cv_id:0
-Id=29
+Id=31
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -694,7 +694,7 @@ Id=29
 * Non relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=32
+Id=34
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -709,12 +709,12 @@ Id=32
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=34
+Id=36
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=33
+  Id=35
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -724,7 +724,7 @@ Id=34
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=32
+Id=34
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -739,12 +739,12 @@ Id=32
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=34
+Id=36
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=33
+  Id=35
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -762,7 +762,7 @@ B() => [ B(z) v B(z!A.z) ]
 * Relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=32
+Id=34
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -777,12 +777,12 @@ Id=32
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=34
+Id=36
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=33
+  Id=35
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -792,7 +792,7 @@ Id=34
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=32
+Id=34
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -807,12 +807,12 @@ Id=32
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=34
+Id=36
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=33
+  Id=35
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -842,7 +842,7 @@ A(t!1),B(t!1) =>
 
 B(t!A.t,z!A.z) => B(t!2,z!1),A(t!2,z!1)
 INTENSIONAL DESCRIPTION:
-Id=32
+Id=34
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -857,12 +857,12 @@ Id=32
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=34
+Id=36
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=33
+  Id=35
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -872,7 +872,7 @@ Id=34
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=32
+Id=34
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -887,12 +887,12 @@ Id=32
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=34
+Id=36
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=33
+  Id=35
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -902,7 +902,7 @@ Id=34
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=32
+Id=34
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -917,12 +917,12 @@ Id=32
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=34
+Id=36
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=33
+  Id=35
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -932,7 +932,7 @@ Id=34
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=32
+Id=34
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -947,12 +947,12 @@ Id=32
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=34
+Id=36
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=33
+  Id=35
    Node(site_type:0<2)
     Id=1
      Leaf True 
diff --git a/models/test_suite/reachability_analysis/parallel_bonds_init_yes/output/LOG.ref b/models/test_suite/reachability_analysis/parallel_bonds_init_yes/output/LOG.ref
index 4378d87afd..2a7affce45 100644
--- a/models/test_suite/reachability_analysis/parallel_bonds_init_yes/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/parallel_bonds_init_yes/output/LOG.ref
@@ -630,7 +630,7 @@ every agent may occur in the model
 * Fixpoint iteration :
 ------------------------------------------------------------
 agent_type:0:A:cv_id:0
-Id=24
+Id=26
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -654,7 +654,7 @@ Id=24
      Leaf False 
 
 agent_type:1:B:cv_id:0
-Id=24
+Id=26
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -682,7 +682,7 @@ Id=24
 * Non relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -697,12 +697,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -712,7 +712,7 @@ Id=27
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -727,12 +727,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -750,7 +750,7 @@ B() => [ B(z) v B(z!A.z) ]
 * Relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -765,12 +765,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -780,7 +780,7 @@ Id=27
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -795,12 +795,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -828,7 +828,7 @@ A(t!1),B(t!1) =>
 A(t!B.t,z!B.z) => A(t!2,z!1),B(t!2,z!1)
 B(t!A.t,z!A.z) => B(t!2,z!1),A(t!2,z!1)
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -843,12 +843,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -858,7 +858,7 @@ Id=27
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -873,12 +873,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -888,7 +888,7 @@ Id=27
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -903,12 +903,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -918,7 +918,7 @@ Id=27
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -933,12 +933,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
diff --git a/models/test_suite/reachability_analysis/parallel_bonds_only_init_false/output/LOG.ref b/models/test_suite/reachability_analysis/parallel_bonds_only_init_false/output/LOG.ref
index 32f8547754..2d1aaf85fc 100644
--- a/models/test_suite/reachability_analysis/parallel_bonds_only_init_false/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/parallel_bonds_only_init_false/output/LOG.ref
@@ -467,7 +467,7 @@ every agent may occur in the model
 * Fixpoint iteration :
 ------------------------------------------------------------
 agent_type:0:A:cv_id:0
-Id=27
+Id=29
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -534,7 +534,7 @@ Id=23
 * Non relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=28
+Id=30
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -549,12 +549,12 @@ Id=28
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=30
+Id=32
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=29
+  Id=31
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -564,7 +564,7 @@ Id=30
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=28
+Id=30
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -579,12 +579,12 @@ Id=28
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=30
+Id=32
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=29
+  Id=31
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -602,7 +602,7 @@ B() => [ B(z) v B(z!A.z) ]
 * Relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=28
+Id=30
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -617,12 +617,12 @@ Id=28
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=30
+Id=32
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=29
+  Id=31
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -632,14 +632,14 @@ Id=30
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=33
+Id=35
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=32
+  Id=34
    Node(site_type:0<1)
-    Id=28
+    Id=30
      Node(site_type:1<0)
       Id=0
        Leaf False 
@@ -652,7 +652,7 @@ Id=33
         Id=0
          Leaf False 
 
-    Id=31
+    Id=33
      Node(site_type:0<2)
       Id=3
        Node(site_type:1<0)
@@ -679,7 +679,7 @@ B(z!A.z) => B(t,z!A.z)
 * Properties of pairs of bonds
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=28
+Id=30
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -694,12 +694,12 @@ Id=28
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=30
+Id=32
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=29
+  Id=31
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -709,7 +709,7 @@ Id=30
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=28
+Id=30
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -724,12 +724,12 @@ Id=28
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=30
+Id=32
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=29
+  Id=31
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -739,7 +739,7 @@ Id=30
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=28
+Id=30
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -754,12 +754,12 @@ Id=28
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=30
+Id=32
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=29
+  Id=31
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -769,14 +769,14 @@ Id=30
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=33
+Id=35
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=32
+  Id=34
    Node(site_type:0<1)
-    Id=28
+    Id=30
      Node(site_type:1<0)
       Id=0
        Leaf False 
@@ -789,7 +789,7 @@ Id=33
         Id=0
          Leaf False 
 
-    Id=31
+    Id=33
      Node(site_type:0<2)
       Id=3
        Node(site_type:1<0)
diff --git a/models/test_suite/reachability_analysis/parallel_bonds_only_init_maybe/output/LOG.ref b/models/test_suite/reachability_analysis/parallel_bonds_only_init_maybe/output/LOG.ref
index 0577f565e8..01cc41a467 100644
--- a/models/test_suite/reachability_analysis/parallel_bonds_only_init_maybe/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/parallel_bonds_only_init_maybe/output/LOG.ref
@@ -542,7 +542,7 @@ Id=24
 * Non relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -557,12 +557,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -572,7 +572,7 @@ Id=27
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -587,12 +587,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -610,7 +610,7 @@ B() => [ B(z) v B(z!A.z) ]
 * Relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -625,12 +625,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -640,7 +640,7 @@ Id=27
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -655,12 +655,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -686,7 +686,7 @@ A(t!1),B(t!1) =>
 * Properties of pairs of bonds
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -701,12 +701,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -716,7 +716,7 @@ Id=27
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -731,12 +731,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -746,7 +746,7 @@ Id=27
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -761,12 +761,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -776,7 +776,7 @@ Id=27
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -791,12 +791,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
diff --git a/models/test_suite/reachability_analysis/parallel_bonds_only_init_yes/output/LOG.ref b/models/test_suite/reachability_analysis/parallel_bonds_only_init_yes/output/LOG.ref
index 27ddb617b3..f58330128e 100644
--- a/models/test_suite/reachability_analysis/parallel_bonds_only_init_yes/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/parallel_bonds_only_init_yes/output/LOG.ref
@@ -411,12 +411,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for A(z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=23
+Id=25
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=22
+  Id=24
    Node(site_type:1<1)
     Id=11
      Node(site_type:2<1)
@@ -441,12 +441,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for B(z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=23
+Id=25
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=22
+  Id=24
    Node(site_type:1<1)
     Id=11
      Node(site_type:2<1)
@@ -496,7 +496,7 @@ every agent may occur in the model
 * Fixpoint iteration :
 ------------------------------------------------------------
 agent_type:0:A:cv_id:0
-Id=24
+Id=26
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -520,7 +520,7 @@ Id=24
      Leaf False 
 
 agent_type:1:B:cv_id:0
-Id=24
+Id=26
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -548,7 +548,7 @@ Id=24
 * Non relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -563,12 +563,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -578,7 +578,7 @@ Id=27
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -593,12 +593,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -616,7 +616,7 @@ B() => [ B(z) v B(z!A.z) ]
 * Relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -631,12 +631,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -646,7 +646,7 @@ Id=27
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -661,12 +661,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -692,7 +692,7 @@ A(t!1),B(t!1) =>
 * Properties of pairs of bonds
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -707,12 +707,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -722,7 +722,7 @@ Id=27
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -737,12 +737,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -752,7 +752,7 @@ Id=27
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -767,12 +767,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -782,7 +782,7 @@ Id=27
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=25
+Id=27
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -797,12 +797,12 @@ Id=25
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=27
+Id=29
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=26
+  Id=28
    Node(site_type:0<2)
     Id=1
      Leaf True 
diff --git a/models/test_suite/reachability_analysis/product/output/LOG.ref b/models/test_suite/reachability_analysis/product/output/LOG.ref
index bdf1bf1378..e33afe936f 100644
--- a/models/test_suite/reachability_analysis/product/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/product/output/LOG.ref
@@ -703,19 +703,19 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for A(z~,z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=36
+Id=40
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=35
+  Id=39
    Node(site_type:1<1)
-    Id=34
+    Id=38
      Node(site_type:2<1)
       Id=0
        Leaf False 
 
-      Id=33
+      Id=37
        Node(site_type:2<2)
         Id=19
          Node(site_type:3<0)
@@ -797,19 +797,19 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for A(z~,z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=48
+Id=52
  Node(site_type:1<1)
   Id=0
    Leaf False 
 
-  Id=47
+  Id=51
    Node(site_type:1<2)
-    Id=34
+    Id=38
      Node(site_type:2<1)
       Id=0
        Leaf False 
 
-      Id=33
+      Id=37
        Node(site_type:2<2)
         Id=19
          Node(site_type:3<0)
@@ -943,21 +943,21 @@ every agent may occur in the model
 * Fixpoint iteration :
 ------------------------------------------------------------
 agent_type:0:A:cv_id:0
-Id=65
+Id=69
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=64
+  Id=68
    Node(site_type:1<2)
-    Id=44
+    Id=48
      Node(site_type:2<0)
       Id=0
        Leaf False 
 
-      Id=43
+      Id=47
        Node(site_type:2<1)
-        Id=42
+        Id=46
          Node(site_type:3<0)
           Id=0
            Leaf False 
@@ -970,7 +970,7 @@ Id=65
             Id=0
              Leaf False 
 
-        Id=33
+        Id=37
          Node(site_type:2<2)
           Id=19
            Node(site_type:3<0)
@@ -996,7 +996,7 @@ Id=65
 * Non relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=66
+Id=70
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1011,13 +1011,13 @@ Id=66
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=68
- Node(site_type:0<0)
+Id=65
+ Node(site_type:2<0)
   Id=0
    Leaf False 
 
-  Id=67
-   Node(site_type:0<2)
+  Id=4
+   Node(site_type:2<2)
     Id=1
      Leaf True 
 
@@ -1026,13 +1026,13 @@ Id=68
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=61
- Node(site_type:2<0)
+Id=71
+ Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=4
-   Node(site_type:2<2)
+  Id=35
+   Node(site_type:0<2)
     Id=1
      Leaf True 
 
@@ -1041,19 +1041,19 @@ Id=61
 
 EXTENSIONAL DESCRIPTION:
 A() => [ A(z) v A(z!A.z) ]
-A() => [ A(z~u?) v A(z~p?) ]
 A() => [ A(t) v A(t!A.t) ]
+A() => [ A(z~u?) v A(z~p?) ]
 
 ------------------------------------------------------------
 * Relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=68
+Id=71
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=67
+  Id=35
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1063,14 +1063,14 @@ Id=68
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=72
+Id=75
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=71
+  Id=74
    Node(site_type:1<1)
-    Id=61
+    Id=65
      Node(site_type:2<0)
       Id=0
        Leaf False 
@@ -1083,7 +1083,7 @@ Id=72
         Id=0
          Leaf False 
 
-    Id=56
+    Id=60
      Node(site_type:1<2)
       Id=17
        Node(site_type:2<0)
@@ -1120,7 +1120,7 @@ A(t!1),A(t!1) =>
 * Properties of pairs of bonds
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=66
+Id=70
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1135,13 +1135,13 @@ Id=66
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=68
- Node(site_type:0<0)
+Id=65
+ Node(site_type:2<0)
   Id=0
    Leaf False 
 
-  Id=67
-   Node(site_type:0<2)
+  Id=4
+   Node(site_type:2<2)
     Id=1
      Leaf True 
 
@@ -1150,13 +1150,13 @@ Id=68
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=61
- Node(site_type:2<0)
+Id=71
+ Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=4
-   Node(site_type:2<2)
+  Id=35
+   Node(site_type:0<2)
     Id=1
      Leaf True 
 
@@ -1165,12 +1165,12 @@ Id=61
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=68
+Id=71
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=67
+  Id=35
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1180,14 +1180,14 @@ Id=68
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=72
+Id=75
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=71
+  Id=74
    Node(site_type:1<1)
-    Id=61
+    Id=65
      Node(site_type:2<0)
       Id=0
        Leaf False 
@@ -1200,7 +1200,7 @@ Id=72
         Id=0
          Leaf False 
 
-    Id=56
+    Id=60
      Node(site_type:1<2)
       Id=17
        Node(site_type:2<0)
@@ -1222,12 +1222,12 @@ EXTENSIONAL DESCRIPTION:
 ------------------------------------------------------------
 * Export Views domain - non relational properties to JSon (internal constraints_list):
 ------------------------------------------------------------
-A()=> [
-		  A(t)
-		v A(t!A.t)]
 A()=> [
 		  A(z~u?)
 		v A(z~p?)]
+A()=> [
+		  A(t)
+		v A(t!A.t)]
 A()=> [
 		  A(z)
 		v A(z!A.z)]
diff --git a/models/test_suite/reachability_analysis/self_bond/output/LOG.ref b/models/test_suite/reachability_analysis/self_bond/output/LOG.ref
index e44d1e5187..6387ce2f2c 100644
--- a/models/test_suite/reachability_analysis/self_bond/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/self_bond/output/LOG.ref
@@ -921,12 +921,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for F(z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=23
+Id=25
  Node(site_type:1<2)
   Id=0
    Leaf False 
 
-  Id=22
+  Id=24
    Node(site_type:1<3)
     Id=5
      Node(site_type:2<0)
@@ -1016,12 +1016,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for E(z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=31
+Id=33
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=30
+  Id=32
    Node(site_type:1<1)
     Id=11
      Node(site_type:2<1)
@@ -1051,19 +1051,19 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for D(z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=35
+Id=37
  Node(site_type:1<1)
   Id=0
    Leaf False 
 
-  Id=34
+  Id=36
    Node(site_type:1<2)
-    Id=33
+    Id=35
      Node(site_type:2<2)
       Id=0
        Leaf False 
 
-      Id=32
+      Id=34
        Node(site_type:2<3)
         Id=1
          Leaf True 
@@ -1081,12 +1081,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for D(z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=31
+Id=33
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=30
+  Id=32
    Node(site_type:1<1)
     Id=11
      Node(site_type:2<1)
@@ -1111,19 +1111,19 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for D(z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=41
+Id=43
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=40
+  Id=42
    Node(site_type:1<1)
-    Id=33
+    Id=35
      Node(site_type:2<2)
       Id=0
        Leaf False 
 
-      Id=32
+      Id=34
        Node(site_type:2<3)
         Id=1
          Leaf True 
@@ -1176,12 +1176,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for C(z!,t!)
 
 INTENSIONAL DESCRIPTION:
-Id=31
+Id=33
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=30
+  Id=32
    Node(site_type:1<1)
     Id=11
      Node(site_type:2<1)
@@ -1406,14 +1406,14 @@ Id=15
        Leaf False 
 
 agent_type:2:C:cv_id:0
-Id=29
+Id=31
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=19
+  Id=21
    Node(site_type:1<2)
-    Id=18
+    Id=20
      Node(site_type:2<0)
       Id=0
        Leaf False 
@@ -1430,19 +1430,19 @@ Id=29
      Leaf False 
 
 agent_type:3:D:cv_id:0
-Id=44
+Id=46
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=43
+  Id=45
    Node(site_type:1<1)
-    Id=42
+    Id=44
      Node(site_type:2<0)
       Id=0
        Leaf False 
 
-      Id=32
+      Id=34
        Node(site_type:2<3)
         Id=1
          Leaf True 
@@ -1450,14 +1450,14 @@ Id=44
         Id=0
          Leaf False 
 
-    Id=34
+    Id=36
      Node(site_type:1<2)
-      Id=33
+      Id=35
        Node(site_type:2<2)
         Id=0
          Leaf False 
 
-        Id=32
+        Id=34
          Node(site_type:2<3)
           Id=1
            Leaf True 
@@ -1469,14 +1469,14 @@ Id=44
        Leaf False 
 
 agent_type:4:E:cv_id:0
-Id=29
+Id=31
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=19
+  Id=21
    Node(site_type:1<2)
-    Id=18
+    Id=20
      Node(site_type:2<0)
       Id=0
        Leaf False 
@@ -1493,12 +1493,12 @@ Id=29
      Leaf False 
 
 agent_type:5:F:cv_id:0
-Id=26
+Id=28
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=25
+  Id=27
    Node(site_type:1<1)
     Id=5
      Node(site_type:2<0)
@@ -1513,9 +1513,9 @@ Id=26
         Id=0
          Leaf False 
 
-    Id=24
+    Id=26
      Node(site_type:1<2)
-      Id=18
+      Id=20
        Node(site_type:2<0)
         Id=0
          Leaf False 
@@ -1528,7 +1528,7 @@ Id=26
           Id=0
            Leaf False 
 
-      Id=22
+      Id=24
        Node(site_type:1<3)
         Id=5
          Node(site_type:2<0)
@@ -1551,7 +1551,7 @@ Id=26
 * Non relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=50
+Id=52
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1566,12 +1566,12 @@ Id=50
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=52
+Id=54
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=51
+  Id=53
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1581,7 +1581,7 @@ Id=52
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=50
+Id=52
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1596,12 +1596,12 @@ Id=50
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=52
+Id=54
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=51
+  Id=53
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1611,7 +1611,7 @@ Id=52
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=50
+Id=52
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1626,12 +1626,12 @@ Id=50
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=52
+Id=54
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=51
+  Id=53
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1641,12 +1641,12 @@ Id=52
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=54
+Id=56
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=53
+  Id=55
    Node(site_type:1<3)
     Id=1
      Leaf True 
@@ -1656,12 +1656,12 @@ Id=54
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=52
+Id=54
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=51
+  Id=53
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1671,7 +1671,7 @@ Id=52
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=50
+Id=52
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1686,12 +1686,12 @@ Id=50
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=52
+Id=54
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=51
+  Id=53
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1701,7 +1701,7 @@ Id=52
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=50
+Id=52
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1716,12 +1716,12 @@ Id=50
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=56
+Id=58
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=55
+  Id=57
    Node(site_type:0<3)
     Id=1
      Leaf True 
@@ -1747,12 +1747,12 @@ F() => [ F(z) v F(z!F.z) v F(z!F.t) ]
 * Relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=59
+Id=61
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=58
+  Id=60
    Node(site_type:0<1)
     Id=3
      Node(site_type:1<0)
@@ -1767,7 +1767,7 @@ Id=59
         Id=0
          Leaf False 
 
-    Id=57
+    Id=59
      Node(site_type:0<2)
       Id=17
        Node(site_type:1<1)
@@ -1787,12 +1787,12 @@ Id=59
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=59
+Id=61
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=58
+  Id=60
    Node(site_type:0<1)
     Id=3
      Node(site_type:1<0)
@@ -1807,7 +1807,7 @@ Id=59
         Id=0
          Leaf False 
 
-    Id=57
+    Id=59
      Node(site_type:0<2)
       Id=17
        Node(site_type:1<1)
@@ -1827,7 +1827,7 @@ Id=59
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=50
+Id=52
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1842,12 +1842,12 @@ Id=50
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=52
+Id=54
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=51
+  Id=53
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1857,19 +1857,19 @@ Id=52
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=65
+Id=67
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=64
+  Id=66
    Node(site_type:0<1)
-    Id=54
+    Id=56
      Node(site_type:1<0)
       Id=0
        Leaf False 
 
-      Id=53
+      Id=55
        Node(site_type:1<3)
         Id=1
          Leaf True 
@@ -1877,14 +1877,14 @@ Id=65
         Id=0
          Leaf False 
 
-    Id=63
+    Id=65
      Node(site_type:0<2)
-      Id=62
+      Id=64
        Node(site_type:1<2)
         Id=0
          Leaf False 
 
-        Id=53
+        Id=55
          Node(site_type:1<3)
           Id=1
            Leaf True 
@@ -1897,7 +1897,7 @@ Id=65
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=50
+Id=52
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1912,12 +1912,12 @@ Id=50
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=52
+Id=54
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=51
+  Id=53
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -1927,12 +1927,12 @@ Id=52
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=71
+Id=73
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=70
+  Id=72
    Node(site_type:0<1)
     Id=3
      Node(site_type:1<0)
@@ -1947,9 +1947,9 @@ Id=71
         Id=0
          Leaf False 
 
-    Id=69
+    Id=71
      Node(site_type:0<2)
-      Id=50
+      Id=52
        Node(site_type:1<0)
         Id=0
          Leaf False 
@@ -1962,7 +1962,7 @@ Id=71
           Id=0
            Leaf False 
 
-      Id=68
+      Id=70
        Node(site_type:0<3)
         Id=3
          Node(site_type:1<0)
@@ -1997,7 +1997,7 @@ B(t!B.z,z!B.t) => [ B(t!2,z!1),B(t!1,z!2) v B(t!1,z!1) ]
 C(t!C.z,z!C.t) => C(t!2,z!1),C(t!1),C(z!2)
 E(t!E.t,z!E.z) => E(t!2,z!1),E(z!1),E(t!2)
 INTENSIONAL DESCRIPTION:
-Id=50
+Id=52
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -2012,12 +2012,12 @@ Id=50
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=52
+Id=54
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=51
+  Id=53
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -2027,7 +2027,7 @@ Id=52
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=50
+Id=52
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -2042,12 +2042,12 @@ Id=50
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=52
+Id=54
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=51
+  Id=53
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -2057,7 +2057,7 @@ Id=52
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=50
+Id=52
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -2072,12 +2072,12 @@ Id=50
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=52
+Id=54
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=51
+  Id=53
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -2087,12 +2087,12 @@ Id=52
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=54
+Id=56
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=53
+  Id=55
    Node(site_type:1<3)
     Id=1
      Leaf True 
@@ -2102,12 +2102,12 @@ Id=54
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=52
+Id=54
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=51
+  Id=53
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -2117,7 +2117,7 @@ Id=52
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=50
+Id=52
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -2132,12 +2132,12 @@ Id=50
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=52
+Id=54
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=51
+  Id=53
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -2147,7 +2147,7 @@ Id=52
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=50
+Id=52
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -2162,12 +2162,12 @@ Id=50
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=56
+Id=58
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=55
+  Id=57
    Node(site_type:0<3)
     Id=1
      Leaf True 
@@ -2177,12 +2177,12 @@ Id=56
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=59
+Id=61
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=58
+  Id=60
    Node(site_type:0<1)
     Id=3
      Node(site_type:1<0)
@@ -2197,7 +2197,7 @@ Id=59
         Id=0
          Leaf False 
 
-    Id=57
+    Id=59
      Node(site_type:0<2)
       Id=17
        Node(site_type:1<1)
@@ -2217,12 +2217,12 @@ Id=59
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=59
+Id=61
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=58
+  Id=60
    Node(site_type:0<1)
     Id=3
      Node(site_type:1<0)
@@ -2237,7 +2237,7 @@ Id=59
         Id=0
          Leaf False 
 
-    Id=57
+    Id=59
      Node(site_type:0<2)
       Id=17
        Node(site_type:1<1)
@@ -2257,7 +2257,7 @@ Id=59
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=50
+Id=52
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -2272,12 +2272,12 @@ Id=50
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=52
+Id=54
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=51
+  Id=53
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -2287,19 +2287,19 @@ Id=52
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=65
+Id=67
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=64
+  Id=66
    Node(site_type:0<1)
-    Id=54
+    Id=56
      Node(site_type:1<0)
       Id=0
        Leaf False 
 
-      Id=53
+      Id=55
        Node(site_type:1<3)
         Id=1
          Leaf True 
@@ -2307,14 +2307,14 @@ Id=65
         Id=0
          Leaf False 
 
-    Id=63
+    Id=65
      Node(site_type:0<2)
-      Id=62
+      Id=64
        Node(site_type:1<2)
         Id=0
          Leaf False 
 
-        Id=53
+        Id=55
          Node(site_type:1<3)
           Id=1
            Leaf True 
@@ -2327,7 +2327,7 @@ Id=65
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=50
+Id=52
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -2342,12 +2342,12 @@ Id=50
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=52
+Id=54
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=51
+  Id=53
    Node(site_type:0<2)
     Id=1
      Leaf True 
@@ -2357,12 +2357,12 @@ Id=52
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=71
+Id=73
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=70
+  Id=72
    Node(site_type:0<1)
     Id=3
      Node(site_type:1<0)
@@ -2377,9 +2377,9 @@ Id=71
         Id=0
          Leaf False 
 
-    Id=69
+    Id=71
      Node(site_type:0<2)
-      Id=50
+      Id=52
        Node(site_type:1<0)
         Id=0
          Leaf False 
@@ -2392,7 +2392,7 @@ Id=71
           Id=0
            Leaf False 
 
-      Id=68
+      Id=70
        Node(site_type:0<3)
         Id=3
          Node(site_type:1<0)
diff --git a/models/test_suite/reachability_analysis/side_effects/output/LOG.ref b/models/test_suite/reachability_analysis/side_effects/output/LOG.ref
index 978cf0dd17..4e8c3bee1a 100644
--- a/models/test_suite/reachability_analysis/side_effects/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/side_effects/output/LOG.ref
@@ -1358,7 +1358,7 @@ Id=52
 
   Id=51
    Node(site_type:1<2)
-    Id=30
+    Id=32
      Node(site_type:2<0)
       Id=0
        Leaf False 
@@ -1375,12 +1375,12 @@ Id=52
      Leaf False 
 
 agent_type:1:B:cv_id:0
-Id=29
+Id=31
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=28
+  Id=30
    Node(site_type:1<1)
     Id=5
      Node(site_type:2<0)
@@ -1395,7 +1395,7 @@ Id=29
         Id=0
          Leaf False 
 
-    Id=27
+    Id=29
      Node(site_type:1<2)
       Id=22
        Node(site_type:2<0)
@@ -1453,12 +1453,12 @@ Id=26
        Leaf False 
 
 agent_type:3:D:cv_id:0
-Id=29
+Id=31
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=28
+  Id=30
    Node(site_type:1<1)
     Id=5
      Node(site_type:2<0)
@@ -1473,7 +1473,7 @@ Id=29
         Id=0
          Leaf False 
 
-    Id=27
+    Id=29
      Node(site_type:1<2)
       Id=22
        Node(site_type:2<0)
@@ -1492,12 +1492,12 @@ Id=29
        Leaf False 
 
 agent_type:4:E:cv_id:0
-Id=29
+Id=31
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=28
+  Id=30
    Node(site_type:1<1)
     Id=5
      Node(site_type:2<0)
@@ -1512,7 +1512,7 @@ Id=29
         Id=0
          Leaf False 
 
-    Id=27
+    Id=29
      Node(site_type:1<2)
       Id=22
        Node(site_type:2<0)
diff --git a/models/test_suite/reachability_analysis/site_accross_bonds_domain/output/LOG.ref b/models/test_suite/reachability_analysis/site_accross_bonds_domain/output/LOG.ref
index 379d92afd3..82bd69a465 100644
--- a/models/test_suite/reachability_analysis/site_accross_bonds_domain/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/site_accross_bonds_domain/output/LOG.ref
@@ -729,12 +729,12 @@ EXTENSIONAL DESCRIPTION:
 		Updating the views for B(z~,z!,t~)
 
 INTENSIONAL DESCRIPTION:
-Id=70
+Id=72
  Node(site_type:1<1)
   Id=0
    Leaf False 
 
-  Id=69
+  Id=71
    Node(site_type:1<2)
     Id=63
      Node(site_type:2<0)
@@ -844,12 +844,12 @@ Id=55
      Leaf False 
 
 agent_type:1:B:cv_id:0
-Id=74
+Id=76
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=73
+  Id=75
    Node(site_type:1<1)
     Id=63
      Node(site_type:2<0)
@@ -874,9 +874,9 @@ Id=74
         Id=0
          Leaf False 
 
-    Id=72
+    Id=74
      Node(site_type:1<2)
-      Id=71
+      Id=73
        Node(site_type:2<0)
         Id=0
          Leaf False 
@@ -922,7 +922,7 @@ Id=66
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=75
+Id=81
  Node(site_type:0<0)
   Id=0
    Leaf False 
@@ -937,13 +937,13 @@ Id=75
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=66
- Node(site_type:1<0)
+Id=39
+ Node(site_type:2<0)
   Id=0
    Leaf False 
 
-  Id=12
-   Node(site_type:1<2)
+  Id=20
+   Node(site_type:2<2)
     Id=1
      Leaf True 
 
@@ -952,13 +952,13 @@ Id=66
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=39
- Node(site_type:2<0)
+Id=66
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=20
-   Node(site_type:2<2)
+  Id=12
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -967,7 +967,7 @@ Id=39
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=75
+Id=81
  Node(site_type:0<0)
   Id=0
    Leaf False 
@@ -983,8 +983,8 @@ Id=75
 EXTENSIONAL DESCRIPTION:
 A() => [ A(t~u) v A(t~p) ]
 A() => [ A(z) v A(z!B.z) ]
-B() => [ B(z) v B(z!A.z) ]
 B() => [ B(t~u) v B(t~p) ]
+B() => [ B(z) v B(z!A.z) ]
 B() => [ B(z~u?) v B(z~p?) ]
 
 ------------------------------------------------------------
@@ -1006,7 +1006,7 @@ Id=66
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=75
+Id=81
  Node(site_type:0<0)
   Id=0
    Leaf False 
@@ -1036,12 +1036,12 @@ Id=39
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=81
+Id=87
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=80
+  Id=86
    Node(site_type:0<1)
     Id=3
      Node(site_type:1<0)
@@ -1056,7 +1056,7 @@ Id=81
         Id=0
          Leaf False 
 
-    Id=79
+    Id=85
      Node(site_type:0<2)
       Id=66
        Node(site_type:1<0)
@@ -1083,6 +1083,7 @@ A(z!1),B(z!1) =>
 	[
 		  A(t~p,z!1),B(t~p,z!1)
 		v A(t~u,z!1),B(t~u,z!1)
+		v A(t~u,z!1),B(t~p,z!1)
 	]
 ------------------------------------------------------------
 * Properties of pairs of bonds
@@ -1103,7 +1104,7 @@ Id=66
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=75
+Id=81
  Node(site_type:0<0)
   Id=0
    Leaf False 
@@ -1118,13 +1119,13 @@ Id=75
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=66
- Node(site_type:1<0)
+Id=39
+ Node(site_type:2<0)
   Id=0
    Leaf False 
 
-  Id=12
-   Node(site_type:1<2)
+  Id=20
+   Node(site_type:2<2)
     Id=1
      Leaf True 
 
@@ -1133,13 +1134,13 @@ Id=66
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=39
- Node(site_type:2<0)
+Id=66
+ Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=20
-   Node(site_type:2<2)
+  Id=12
+   Node(site_type:1<2)
     Id=1
      Leaf True 
 
@@ -1148,7 +1149,7 @@ Id=39
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=75
+Id=81
  Node(site_type:0<0)
   Id=0
    Leaf False 
@@ -1178,7 +1179,7 @@ Id=66
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=75
+Id=81
  Node(site_type:0<0)
   Id=0
    Leaf False 
@@ -1208,12 +1209,12 @@ Id=39
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=81
+Id=87
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=80
+  Id=86
    Node(site_type:0<1)
     Id=3
      Node(site_type:1<0)
@@ -1228,7 +1229,7 @@ Id=81
         Id=0
          Leaf False 
 
-    Id=79
+    Id=85
      Node(site_type:0<2)
       Id=66
        Node(site_type:1<0)
@@ -1253,12 +1254,12 @@ EXTENSIONAL DESCRIPTION:
 B()=> [
 		  B(z~u?)
 		v B(z~p?)]
-B()=> [
-		  B(t~u)
-		v B(t~p)]
 B()=> [
 		  B(z)
 		v B(z!A.z)]
+B()=> [
+		  B(t~u)
+		v B(t~p)]
 A()=> [
 		  A(z)
 		v A(z!B.z)]
@@ -1276,7 +1277,8 @@ B(z!A.z)=> [B(z~p!A.z)]
 ------------------------------------------------------------
 A(z!1),B(z!1)=> [
 		  A(t~p,z!1),B(t~p,z!1)
-		v A(t~u,z!1),B(t~u,z!1)]
+		v A(t~u,z!1),B(t~u,z!1)
+		v A(t~u,z!1),B(t~p,z!1)]
 
 ------------------------------------------------------------
 * Export Parallel bonds to JSon (internal constraints_list):
diff --git a/models/test_suite/reachability_analysis/site_accross_bonds_domain_2/output/LOG.ref b/models/test_suite/reachability_analysis/site_accross_bonds_domain_2/output/LOG.ref
index 665f9d71e8..69b046e1cd 100644
--- a/models/test_suite/reachability_analysis/site_accross_bonds_domain_2/output/LOG.ref
+++ b/models/test_suite/reachability_analysis/site_accross_bonds_domain_2/output/LOG.ref
@@ -768,12 +768,12 @@ Id=62
        Leaf False 
 
 agent_type:1:B:cv_id:0
-Id=74
+Id=80
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=73
+  Id=79
    Node(site_type:1<1)
     Id=13
      Node(site_type:2<0)
@@ -798,14 +798,14 @@ Id=74
         Id=0
          Leaf False 
 
-    Id=72
+    Id=78
      Node(site_type:1<2)
-      Id=71
+      Id=77
        Node(site_type:2<0)
         Id=0
          Leaf False 
 
-        Id=70
+        Id=76
          Node(site_type:2<1)
           Id=11
            Node(site_type:3<0)
@@ -846,7 +846,7 @@ Id=74
 * Non relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=77
+Id=87
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -861,7 +861,7 @@ Id=77
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=76
+Id=86
  Node(site_type:0<0)
   Id=0
    Leaf False 
@@ -876,7 +876,7 @@ Id=76
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=75
+Id=85
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -891,13 +891,13 @@ Id=75
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=76
- Node(site_type:0<0)
+Id=37
+ Node(site_type:2<0)
   Id=0
    Leaf False 
 
-  Id=53
-   Node(site_type:0<2)
+  Id=18
+   Node(site_type:2<2)
     Id=1
      Leaf True 
 
@@ -906,13 +906,13 @@ Id=76
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=37
- Node(site_type:2<0)
+Id=86
+ Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=18
-   Node(site_type:2<2)
+  Id=53
+   Node(site_type:0<2)
     Id=1
      Leaf True 
 
@@ -923,19 +923,19 @@ EXTENSIONAL DESCRIPTION:
 A() => [ A(t~u) v A(t~p) v A(t~q) ]
 A() => [ A(z) v A(z!B.z) ]
 B() => [ B(z) v B(z!A.z) ]
-B() => [ B(z~u?) v B(z~p?) ]
 B() => [ B(t~u) v B(t~p) ]
+B() => [ B(z~u?) v B(z~p?) ]
 
 ------------------------------------------------------------
 * Relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=81
+Id=91
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=80
+  Id=90
    Node(site_type:0<1)
     Id=3
      Node(site_type:1<0)
@@ -950,9 +950,9 @@ Id=81
         Id=0
          Leaf False 
 
-    Id=79
+    Id=89
      Node(site_type:0<2)
-      Id=77
+      Id=87
        Node(site_type:1<0)
         Id=0
          Leaf False 
@@ -970,12 +970,12 @@ Id=81
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=97
+Id=107
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=96
+  Id=106
    Node(site_type:0<1)
     Id=7
      Node(site_type:1<0)
@@ -1000,7 +1000,7 @@ Id=97
         Id=0
          Leaf False 
 
-    Id=95
+    Id=105
      Node(site_type:0<2)
       Id=40
        Node(site_type:1<0)
@@ -1052,14 +1052,15 @@ B(z) => B(t~u,z)
 ------------------------------------------------------------
 A(z!1),B(z!1) => 
 	[
-		  A(t~p,z!1),B(t~p,z!1)
+		  A(t~q,z!1),B(t~p,z!1)
+		v A(t~p,z!1),B(t~p,z!1)
 		v A(t~u,z!1),B(t~u,z!1)
 	]
 ------------------------------------------------------------
 * Properties of pairs of bonds
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=77
+Id=87
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1074,7 +1075,7 @@ Id=77
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=76
+Id=86
  Node(site_type:0<0)
   Id=0
    Leaf False 
@@ -1089,7 +1090,7 @@ Id=76
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=75
+Id=85
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -1104,13 +1105,13 @@ Id=75
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=76
- Node(site_type:0<0)
+Id=37
+ Node(site_type:2<0)
   Id=0
    Leaf False 
 
-  Id=53
-   Node(site_type:0<2)
+  Id=18
+   Node(site_type:2<2)
     Id=1
      Leaf True 
 
@@ -1119,13 +1120,13 @@ Id=76
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=37
- Node(site_type:2<0)
+Id=86
+ Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=18
-   Node(site_type:2<2)
+  Id=53
+   Node(site_type:0<2)
     Id=1
      Leaf True 
 
@@ -1134,12 +1135,12 @@ Id=37
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=81
+Id=91
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=80
+  Id=90
    Node(site_type:0<1)
     Id=3
      Node(site_type:1<0)
@@ -1154,9 +1155,9 @@ Id=81
         Id=0
          Leaf False 
 
-    Id=79
+    Id=89
      Node(site_type:0<2)
-      Id=77
+      Id=87
        Node(site_type:1<0)
         Id=0
          Leaf False 
@@ -1174,12 +1175,12 @@ Id=81
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=97
+Id=107
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=96
+  Id=106
    Node(site_type:0<1)
     Id=7
      Node(site_type:1<0)
@@ -1204,7 +1205,7 @@ Id=97
         Id=0
          Leaf False 
 
-    Id=95
+    Id=105
      Node(site_type:0<2)
       Id=40
        Node(site_type:1<0)
@@ -1251,12 +1252,12 @@ EXTENSIONAL DESCRIPTION:
 ------------------------------------------------------------
 * Export Views domain - non relational properties to JSon (internal constraints_list):
 ------------------------------------------------------------
-B()=> [
-		  B(t~u)
-		v B(t~p)]
 B()=> [
 		  B(z~u?)
 		v B(z~p?)]
+B()=> [
+		  B(t~u)
+		v B(t~p)]
 B()=> [
 		  B(z)
 		v B(z!A.z)]
@@ -1279,7 +1280,8 @@ A(z)=> [A(t~u,z)]
 * Export Connected agents to JSon (internal constraints_list):
 ------------------------------------------------------------
 A(z!1),B(z!1)=> [
-		  A(t~p,z!1),B(t~p,z!1)
+		  A(t~q,z!1),B(t~p,z!1)
+		v A(t~p,z!1),B(t~p,z!1)
 		v A(t~u,z!1),B(t~u,z!1)]
 
 ------------------------------------------------------------
diff --git a/models/test_suite/symmetries/sym2/output/LOG.ref b/models/test_suite/symmetries/sym2/output/LOG.ref
index 2a7b2cd34d..4cb84e9da9 100644
--- a/models/test_suite/symmetries/sym2/output/LOG.ref
+++ b/models/test_suite/symmetries/sym2/output/LOG.ref
@@ -844,14 +844,14 @@ every agent may occur in the model
 * Fixpoint iteration :
 ------------------------------------------------------------
 agent_type:0:A:cv_id:0
-Id=32
+Id=38
  Node(site_type:1<0)
   Id=0
    Leaf False 
 
-  Id=31
+  Id=37
    Node(site_type:1<1)
-    Id=30
+    Id=36
      Node(site_type:2<0)
       Id=0
        Leaf False 
@@ -887,7 +887,7 @@ Id=32
 * Non relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=33
+Id=39
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -902,7 +902,7 @@ Id=33
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=35
+Id=40
  Node(site_type:0<0)
   Id=0
    Leaf False 
@@ -923,14 +923,14 @@ A() => [ A(x) v A(x!A.x) v A(x!A.y) ]
 * Relational properties:
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=40
+Id=45
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=39
+  Id=44
    Node(site_type:0<1)
-    Id=33
+    Id=39
      Node(site_type:1<0)
       Id=0
        Leaf False 
@@ -943,7 +943,7 @@ Id=40
         Id=0
          Leaf False 
 
-    Id=38
+    Id=43
      Node(site_type:0<3)
       Id=3
        Node(site_type:1<0)
@@ -971,7 +971,7 @@ A(x!A.x) => A(x!A.x,y)
 * Properties of pairs of bonds
 ------------------------------------------------------------
 INTENSIONAL DESCRIPTION:
-Id=33
+Id=39
  Node(site_type:1<0)
   Id=0
    Leaf False 
@@ -986,7 +986,7 @@ Id=33
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=35
+Id=40
  Node(site_type:0<0)
   Id=0
    Leaf False 
@@ -1001,14 +1001,14 @@ Id=35
 
 EXTENSIONAL DESCRIPTION:
 INTENSIONAL DESCRIPTION:
-Id=40
+Id=45
  Node(site_type:0<0)
   Id=0
    Leaf False 
 
-  Id=39
+  Id=44
    Node(site_type:0<1)
-    Id=33
+    Id=39
      Node(site_type:1<0)
       Id=0
        Leaf False 
@@ -1021,7 +1021,7 @@ Id=40
         Id=0
          Leaf False 
 
-    Id=38
+    Id=43
      Node(site_type:0<3)
       Id=3
        Node(site_type:1<0)