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Assertion violation when enabling proof generation: src/ast/ast.cpp:2820 #3153

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rainoftime opened this issue Mar 5, 2020 · 1 comment
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Assertion violation when enabling proof generation: src/ast/ast.cpp:2820 #3153

rainoftime opened this issue Mar 5, 2020 · 1 comment

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@rainoftime
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rainoftime commented Mar 5, 2020 •
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Hi,
For this formula:

(set-option :model_validate true)
(set-option :model true)
(set-option :proof true)

(declare-const v0 Bool)
(declare-const v1 Bool)
(declare-const v2 Bool)
(declare-const v3 Bool)
(declare-const v4 Bool)
(assert (forall ((q0 Bool) (q1 Bool) (q2 Bool) (q3 Bool)) (not (= v1 v1 q3 q1 v4 v0 v3 q2))))
(assert v4)
(check-sat)

Z3 throws out an assertion violation:

ASSERTION VIOLATION
File: ../src/ast/ast.cpp
Line: 2820
to_app(get_fact(p2))->get_arg(0) == get_fact(p1)
(C)ontinue, (A)bort, (S)top, (T)hrow exception, Invoke (G)DB

OS: Ubuntu 16.04
Debug branch commit : c716978
Master branch commit: 6cbcd13
@rainoftime rainoftime changed the title Debug branch: Assertion violation at sr/ast/ast.cpp:2820 Debug branch: assertion violation at sr/ast/ast.cpp:2820 Mar 5, 2020
@rainoftime
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Both the master and debug branches have the issue.

@rainoftime rainoftime changed the title Debug branch: assertion violation at sr/ast/ast.cpp:2820 Assertion violation when enabling proof generation: src/ast/ast.cpp:2820 Mar 5, 2020
@rainoftime rainoftime mentioned this issue Mar 5, 2020
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NikolajBjorner added a commit that referenced this issue Jun 15, 2020
@NikolajBjorner
re-enable proofs for qe-lite #3153
d09e6ec 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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