Unreachable reached in Julia v1.3/1.4

[schillic]

At least on my system the following test code crashes with a Julia bug (Unreachable reached, signal (4): Illegal instruction).

Reachability.jl/test/ReachSets/unit_discretization.jl

Lines 151 to 161 in 6fb396d

	A_itv = IntervalMatrix([-1.1..0.9 -4.1.. -3.9; 3.9..4.1 -1.1..0.9])
	X0 = BallInf(zeros(2), 0.1)
	sys_homog = IVP(CLCS(A_itv, Universe(2)), X0)
	B = IntervalMatrix([1.0..1.0 0.0..0.0; 0.0..0.0 1.0..1.0])
	U = ConstantInput(BallInf(ones(2), 0.5))
	sys_heterog = IVP(CLCCS(A_itv, B, Universe(2), U), X0)
	algorithm = "interval_matrix"
	for cont_sys in [sys_homog, sys_heterog]
	# default order
	discr_sys = discretize(cont_sys, δ; algorithm=algorithm)

I tried to debug it and apparently there is a problem when we create the result system:

Reachability.jl/src/ReachSets/discretize.jl

Line 832 in 6fb396d

return IVP(CLCDS(ϕ, B, stateset(𝑆.s), Ud), Ω0)

The system itself can be created without problems if you outsorce this line to a new helper function. But for some reason the compiler seems surprised that it can return that result and then crashes.