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fix #1908

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-10-30 14:15:29 -05:00
parent 5d06fa2347
commit 3c1c3d5987
12 changed files with 103 additions and 31 deletions
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4
src/ast/rewriter/seq_rewriter.cpp
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@ -859,10 +859,6 @@ br_status seq_rewriter::mk_seq_replace(expr* a, expr* b, expr* c, expr_ref& resu
result = m_util.str.mk_concat(c, a);
return BR_REWRITE1;
}
if (m_util.str.is_string(a, s1) && s1.length() == 0) {
result = a;
return BR_DONE;
}
return BR_FAILED;
}