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fix #4623

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-08-11 14:08:53 -07:00
parent 9f7e80c440
commit 7fc4653e47
1 changed files with 5 additions and 0 deletions
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5
src/smt/theory_datatype.cpp
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@ -856,6 +856,11 @@ namespace smt {
enode * n = get_enode(v);
sort * dt = m.get_sort(n->get_owner());
var_data * d = m_var_data[v];
if (d->m_recognizers.empty()) {
theory_var w = recognizer->get_arg(0)->get_th_var(get_id());
SASSERT(w != null_theory_var);
add_recognizer(w, recognizer);
}
CTRACE("datatype", d->m_recognizers.empty(), ctx.display(tout););
SASSERT(!d->m_recognizers.empty());
literal_vector lits;