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#6687

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This commit is contained in:
Nikolaj Bjorner 2023-04-13 08:45:11 -07:00
parent 7cd8edce1f
commit b783879752
1 changed files with 1 additions and 0 deletions
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src/tactic/core/elim_uncnstr_tactic.cpp
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@ -804,6 +804,7 @@ class elim_uncnstr_tactic : public tactic {
app * r = nullptr; app * r = nullptr;
expr* x, *y; expr* x, *y;
if (uncnstr(args[0]) && num == 2 && if (uncnstr(args[0]) && num == 2 &&
args[1]->get_ref_count() == 1 &&
m_seq_util.str.is_concat(args[1], x, y) && m_seq_util.str.is_concat(args[1], x, y) &&
uncnstr(x)) { uncnstr(x)) {
if (!mk_fresh_uncnstr_var_for(f, num, args, r)) if (!mk_fresh_uncnstr_var_for(f, num, args, r))