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avoid disequalities from str.at axioms

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2026-05-04 16:33:12 -07:00
parent af2769dbc0
commit e242257070
2 changed files with 4 additions and 4 deletions
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4
src/smt/theory_nseq.cpp
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@ -343,9 +343,9 @@ namespace smt {
else if (m_axioms.sk().is_eq(e, a, b) && is_true) {
enode* n1 = ensure_enode(a);
enode* n2 = ensure_enode(b);
auto v1 = mk_var(n1);
auto v2 = mk_var(n2);
if (n1->get_root() != n2->get_root()) {
auto v1 = mk_var(n1);
auto v2 = mk_var(n2);
literal lit(v, false);
ctx.mark_as_relevant(n1);
ctx.mark_as_relevant(n2);