Assertion violation at src/model/datatype_factory.cpp:175

[wintered]

[556] % z3-4.8.8 small.smt2
unknown
[557] % z3release small.smt2
Segmentation fault
[558] % z3debug small.smt2
ASSERTION VIOLATION
File: ../src/model/datatype_factory.cpp
Line: 175
!found_fresh_arg || !set->contains(new_value)
(C)ontinue, (A)bort, (S)top, (T)hrow exception, Invoke (G)DB
a
[559] % cat small.smt2
(declare-datatypes ((a 0) (b 0) (d 0) (u 0) (v 0) (f 0) (i 0) (j 0) (k 0) (l 0) (m 0) (n 0) (o 0) (p 0) (q 0) (r 0))
 (((b(b v))) (b) (b) (b) ((b(b v)) s) ((b(h a)) (t (g a))) (b) (b) (b) (b) (b) (b) (b) (b) (b) (b)))
(declare-fun c (f) a)
(assert (forall ((e f)) (= (c e) (g e) (h e))))
(check-sat)
[560] %

OS: Ubuntu 18.04
Commit: 065e065