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@ -405,6 +405,12 @@ namespace smt {
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TRACE("special_relations", tout << "already: " << a.v2() << " <= " << a.v1() << "\n";);
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continue;
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}
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if (a.v1() == a.v2()) {
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r.m_explanation.reset();
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r.m_explanation.push_back(a.explanation());
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set_conflict(r);
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return l_false;
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}
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// the nodes visited from v1 become target for v2
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if (r.m_graph.reachable(a.v2(), visited, target, w)) {
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//
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