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Invalid model for integer formula (proof, smt.arith.random_initial_value, fix-dl-var + add-bounds) #3934

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rainoftime opened this issue Apr 12, 2020 · 1 comment
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Invalid model for integer formula (proof, smt.arith.random_initial_value, fix-dl-var + add-bounds) #3934

rainoftime opened this issue Apr 12, 2020 · 1 comment

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@rainoftime
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Hi, for the following formula,z3 (commit db9d6d1) gives an invalid model

(set-option :model_validate true)
(set-option :proof true)
(set-option :smt.arith.random_initial_value true)
(declare-const i3 Int)
(declare-const i5 Int)
(assert (>= i3 i5))
(check-sat-using (then simplify fix-dl-var add-bounds qfnra))
@NikolajBjorner
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duplicate

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@rainoftime @NikolajBjorner