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Invalid model for QF_BV formula (reduce-invertible + qffd) #3951

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rainoftime opened this issue Apr 14, 2020 · 0 comments
Closed

Invalid model for QF_BV formula (reduce-invertible + qffd) #3951

rainoftime opened this issue Apr 14, 2020 · 0 comments

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@rainoftime
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Hi, for the following formula,

(set-logic QF_BV)
(set-option :model_validate true)
(declare-const bv_21-0 (_ BitVec 21))
(assert (distinct (bvneg bv_21-0) bv_21-0))
(check-sat-using (then simplify reduce-invertible qffd))

z3 commit 0f69783 gives an invalid model

sat
(error "line 5 column 55: an invalid model was generated")
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@rainoftime