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fixed bug in is_char_const_range #5724

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merged 1 commit into from
Dec 20, 2021
Merged

fixed bug in is_char_const_range #5724

merged 1 commit into from
Dec 20, 2021

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veanes
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@veanes veanes commented Dec 20, 2021

Fixes the latest regression in #5721

Further fixes a divergence of this example that is a variant of example in issue 1224:
This is unsat:

(set-option :encoding ascii)
(declare-fun X () String)
(assert (not (str.in.re X (re.* (re.union (re.range "\u{0}" "\u{7F}") (re.range "\u{80}" "\u{FF}"))))))
(check-sat)

@NikolajBjorner NikolajBjorner merged commit be38b25 into Z3Prover:master Dec 20, 2021
@veanes veanes deleted the fixRegr branch December 20, 2021 01:49
@veanes veanes mentioned this pull request Dec 20, 2021
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@veanes @NikolajBjorner