diff options
Diffstat (limited to 'test/regress/regress0/fmf/fmc_unsound_model.smt2')
| -rw-r--r-- | test/regress/regress0/fmf/fmc_unsound_model.smt2 | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/regress/regress0/fmf/fmc_unsound_model.smt2 b/test/regress/regress0/fmf/fmc_unsound_model.smt2 new file mode 100644 index 000000000..813f89732 --- /dev/null +++ b/test/regress/regress0/fmf/fmc_unsound_model.smt2 @@ -0,0 +1,27 @@ +; COMMAND-LINE: --finite-model-find +; EXPECT: sat +; this problem produced a model where incorrectly card(a)=1 due to --mbqi=fmc +(set-logic ALL_SUPPORTED) + +(declare-sort a 0) +(declare-datatypes () ((tree (Leaf (lab a))))) + +(declare-sort alpha 0) +(declare-fun alphabet (tree a) Bool) +(declare-fun g1 (alpha) tree) +(declare-fun g2 (alpha) a) + +(assert + (forall ((x alpha)) + (=> + (= (lab (g1 x)) (g2 x)) + (alphabet (g1 x) (g2 x))))) + +(declare-fun x () a) +(declare-fun y () a) +; (assert (= x y)) +(assert + (and + (exists ((b alpha)) (and (= (Leaf y) (g1 b)) (= x (g2 b)))) + (not (alphabet (Leaf y) x)))) +(check-sat) |