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invalid model issue on a QF_DT instance #7037

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zhendongsu opened this issue Dec 4, 2023 · 0 comments

zhendongsu commented Dec 4, 2023

[539] % z3release model_validate=true small.smt2
sat
(error "line 5 column 10: an invalid model was generated")
[540] % cat small.smt2
(declare-datatypes ((a 0)(b 0)(c 0)) (((d (pred a)) (zero)) ((cons (car c) (cdr b)) (e)) ((f (children b)) (g (data a)))))
(declare-fun h () b)
(declare-fun i () c)
(assert (or (distinct zero (data i)) (= (f (cons i h)) (f h))))
(check-sat)

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NikolajBjorner closed this as completed in

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