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#6654

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fix reflexivity for tree-order
This commit is contained in:
Nikolaj Bjorner 2023-03-31 15:38:29 -07:00
parent 7664429fda
commit e0a066efa3
1 changed files with 6 additions and 0 deletions
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6
src/smt/theory_special_relations.cpp
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@ -405,6 +405,12 @@ namespace smt {
TRACE("special_relations", tout << "already: " << a.v2() << " <= " << a.v1() << "\n";); TRACE("special_relations", tout << "already: " << a.v2() << " <= " << a.v1() << "\n";);
continue; continue;
} }
if (a.v1() == a.v2()) {
r.m_explanation.reset();
r.m_explanation.push_back(a.explanation());
set_conflict(r);
return l_false;
}
// the nodes visited from v1 become target for v2 // the nodes visited from v1 become target for v2
if (r.m_graph.reachable(a.v2(), visited, target, w)) { if (r.m_graph.reachable(a.v2(), visited, target, w)) {
// //