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work around regression with use of mk_app_core, returning BR_FAILED if nothing is rewritten

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-07-02 11:10:37 -07:00
parent 648a531950
commit e13b61eae8
3 changed files with 8 additions and 8 deletions
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2
src/smt/theory_seq.cpp
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@ -5021,7 +5021,7 @@ expr* theory_seq::coalesce_chars(expr* const& e) {
if (bvu.is_bv(s)) {
expr_ref result(m);
expr * args[1] = {s};
if (m_seq_rewrite.mk_app_core(to_app(e)->get_decl(), 1, args, result)) {
if (BR_FAILED != m_seq_rewrite.mk_app_core(to_app(e)->get_decl(), 1, args, result)) {
if (!ctx.e_internalized(result))
ctx.internalize(result, false);
return result;