Update existing test

Source/IntegrationTests/TestFiles/LitTests/LitTest/git-issues/git-issue-2026.dfy

@@ -1,4 +1,4 @@
-// RUN: %exits-with 4 %dafny /compile:0 "%s" /extractCounterexample /mv model  > "%t"
+// RUN: %exits-with 4 %dafny /compile:0 /extractCounterexample "%s" > "%t"
 // RUN: %diff "%s.expect" "%t"
 
 // NB: with recent Z3 versions (e.g., 4.12.1), this program no longer

Source/IntegrationTests/TestFiles/LitTests/LitTest/git-issues/git-issue-2026.dfy.expect

@@ -3,30 +3,5 @@ git-issue-2026.dfy(18,18): Related message: loop invariant violation
 
 Dafny program verifier finished with 0 verified, 1 error
 Counterexample for first failing assertion: 
-git-issue-2026.dfy(12,0): initial state:
  n : int = 2
  ret : _System.array<seq<char>> = ()
-git-issue-2026.dfy(13,24):
- n : int = 2
- ret : _System.array?<seq<char>> = (Length := 2, [(- 7720)] := @0, [0] := @0)
- @0 : seq<char> = ['o', 'd', 'd']
-git-issue-2026.dfy(15,14):
- n : int = 2
- ret : _System.array?<seq<char>> = (Length := 2, [(- 7720)] := @0, [0] := @0)
- i : int = 0
- @0 : seq<char> = ['o', 'd', 'd']
-git-issue-2026.dfy(16,4): after some loop iterations:
- n : int = 2
- ret : _System.array?<seq<char>> = (Length := 2, [(- 7720)] := @0)
- i : int = 0
- @0 : seq<char> = ['o', 'd', 'd']
-git-issue-2026.dfy(22,27):
- n : int = 2
- ret : _System.array?<seq<char>> = (Length := 2, [(- 7720)] := @0, [0] := @0)
- i : int = 0
- @0 : seq<char> = ['o', 'd', 'd']
-git-issue-2026.dfy(26,18):
- n : int = 2
- ret : _System.array?<seq<char>> = (Length := 2, [(- 7720)] := @0, [0] := @0)
- i : int = 1
- @0 : seq<char> = ['o', 'd', 'd']