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z3str3: negative lengths in get_len_value don't count

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Murphy Berzish 2019-11-25 14:28:44 -05:00 committed by Nikolaj Bjorner
parent 58f3dce2be
commit 5f78ca9b58
1 changed files with 1 additions and 1 deletions
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src/smt/theory_str.cpp
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@ -5061,7 +5061,7 @@ namespace smt {
}
TRACE("str", tout << "length of " << mk_ismt2_pp(e, m) << " is " << val << std::endl;);
return val.is_int();
return val.is_int() && val.is_nonneg();
}
/*