8000 (rlimit=1000, set-logic=BV) Failed to verify on QF_LIA formula · Issue #4450 · Z3Prover/z3 · GitHub
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(rlimit=1000, set-logic=BV) Failed to verify on QF_LIA formula #4450

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muchang opened this issue May 23, 2020 · 0 comments
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(rlimit=1000, set-logic=BV) Failed to verify on QF_LIA formula #4450

muchang opened this issue May 23, 2020 · 0 comments

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@muchang
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muchang commented May 23, 2020

Hi,
For this case, z3 throws out a "failed to verify"

[653] % z3-4.8.7 small.smt2
sat
sat
[654] % z3-4.8.8 small.smt2
sat
sat
failed to verify: (= s!0 (and a c))
evaluated to (= s!0 (and a c))
(params keep_cardinality_constraints true pb.solver solver)
d |-> 0
e |-> 1
g |-> 2
f |-> 4
a |-> 5
c |-> 6
b |-> 11
s!0 |-> 25
[655] % z3release small.smt2
sat
sat
failed to verify: (= s!0 (and a c))
evaluated to (= s!0 (and a c))
(params keep_cardinality_constraints true pb.solver solver)
d |-> 0
e |-> 1
g |-> 2
f |-> 4
a |-> 5
c |-> 6
b |-> 11
s!0 |-> 25
[656] % 
[656] % cat small.smt2
(set-logic QF_BV)
(set-option :rlimit 1000)
(set-option :model_validate true)
(declare-fun a () Bool)
(declare-fun b () Bool)
(declare-fun c () Bool)
(declare-fun d () Bool)
(declare-fun e () Bool)
(declare-fun f () Bool)
(declare-fun g () Bool)
(assert
 (or
 (and (not (and (or (or (or (and g e))))))
  (or
  (and (not (not (or (and a c) (and f))))
   (and (and (or (or d g)))))
  (and (or (and (not (or b f))) (and (and (not d)) (or (not c) (not e))))
   (or (not (not (or f))) (or (or (and e a))))))
  (not (or (not (or d)))))
 (and
  (and
  (and
   (and (not a)
   (not (and f (or (or (or (or (and c) (not (not false))) e)))))))))))
(push)
(check-sat (and a c))
(check-sat)
[657] %

OS: Ubuntu 18.04
Commit: d1d1411

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