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Model validation fails on NRA formula #2663

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muchang opened this issue Oct 26, 2019 · 0 comments
Closed

Model validation fails on NRA formula #2663

muchang opened this issue Oct 26, 2019 · 0 comments

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@muchang
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muchang commented Oct 26, 2019

Hi,
For this formula,

(declare-fun a () Real)
(declare-fun b () Real)
(assert (< (/ b (/ 0 (/ 1 a))) 0 a))
(check-sat)

z3 will throw out an error when model_validate is on:

(error "line 4 column 10: an invalid model was generated")

OS: Ubuntu 18.04
Revision: 376d2c1
Commandline: z3 model_validate=true small.smt2
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@NikolajBjorner @muchang