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Invalid mode on QF_S formula (assert (= (str.substr (str.++ a "abc" b) 20 1) "a")) #4082

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muchang opened this issue Apr 24, 2020 · 0 comments

muchang commented Apr 24, 2020

Hi,
For this case, Z3 gives an invalid model:

[579] % z3release model_validate=true small.smt2
sat
(error "line 4 column 10: an invalid model was generated")
[580] % cat small.smt2
(declare-fun a () String)
(declare-fun b () String)
(assert (= (str.substr (str.++ a "abc" b) 20 1) "a"))
(check-sat)
[581] %

OS: Ubuntu 18.04
Commit: 7597396

The text was updated successfully, but these errors were encountered:

NikolajBjorner closed this as completed in

6ab8346

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