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tentative solution: use existing nullability check (we might want to check in the future which guards of the ITE are actually true)

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CEisenhofer 2026-04-14 18:07:03 +02:00
parent f09f6d5097
commit 82df1afeaf
9 changed files with 33 additions and 85 deletions
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2
src/smt/theory_nseq.cpp
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@ -423,7 +423,7 @@ namespace smt {
}
// empty string in non-nullable regex → conflict
if (mem.m_str->is_empty() && !mem.m_regex->is_nullable()) {
if (mem.m_str->is_empty() && m_seq.re.get_info(mem.m_regex->get_expr()).nullable == l_false) {
enode_pair_vector eqs;
literal_vector lits;
lits.push_back(mem.lit);