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Commit: 41805694
```
$cvc4 --strings-exp -q bug.smt2
Fatal failure within void CVC4::theory::InferenceManagerBuffered::assertInternalFactTheory…
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```
$ cvc4 bug.smt2
Fatal failure within CVC4::Node CVC4::theory::strings::RegExpSolver::getNormalSymRegExp(CVC4::Node, std::vector&)
at src/theory/strings/regexp_solver.cpp:699
Check failure
…
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Hi, for the following formula,
cvc4 d16b689f85e
~~~~
(declare-fun i5 () Int)
(declare-fun seq2 () (Seq Int))
(assert (< 1 i5))
(assert (xor true true (seq.prefixof seq2 seq2) (seq.suffixof (seq.…
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https://github.com/emina/rosette/pull/178 broke compatibility with older versions of cvc4. Just letting you know, so this can either be fixed or documented as cvc4 1.8 being the minimum supported solv…
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Hello, I am trying to use Marabou in my thesis. When I try to build Marabou on Windows using Visual Studio, the build fails with a long list of errors, such as:
```
c:\program files (x86)\windows …
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~~~~
(assert (
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**Describe:**
We find some performance regression problems when using the instruction "cvc4 --strings-exp". When running the flowing test cases, The older version runs so fast but the latest versions…
ConfZ updated
3 years ago
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I'm following the instructions here, but instead I'm installing z3 from opam.
https://github.com/EasyCrypt/easycrypt#installing-requirements-using-opam-posix-systems
This works with the package z3…
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z3 commit: e63dc7efc
```
$ cvc4 -q --strings-exp bug.smt2
sat
$ z3-4.8.10 bug.smt2
sat
$ z3release bug.smt2
unsat
$ cat bug.smt2
(declare-fun a() String)
(declare-fun b() String)
(assert …
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Hi,
For this case, Z3 gives an incorrect answer:
```
[643] % z3 small.smt2
unknown
[644] % cvc4 -q small.smt2
unsat
[645] % z3 smt.string_solver=z3str3 small.smt2
sat
[646] %
[646] % cat small.smt2
…