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parent list of root may miss nodes from children if they are not congruence roots. We walk parents of all siblings to not miss

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2024-01-14 18:20:44 -08:00
parent 79a2c86c05
commit 42aad423c9
3 changed files with 47 additions and 37 deletions
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10
src/sat/smt/polysat_solver.cpp
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@ -135,6 +135,10 @@ namespace polysat {
}
void solver::explain_dep(dependency const& d, euf::enode_pair_vector& eqs, sat::literal_vector& core) {
std::function<void(euf::enode*, euf::enode*)> consume = [&](auto* a, auto* b) {
eqs.push_back({ a, b });
};
if (d.is_axiom())
;
else if (d.is_bool_var()) {
@ -144,16 +148,10 @@ namespace polysat {
}
else if (d.is_fixed_claim()) {
auto const& o = d.fixed();
std::function<void(euf::enode*, euf::enode*)> consume = [&](auto* a, auto* b) {
eqs.push_back({ a, b });
};
explain_fixed(o.v, o, consume);
}
else if (d.is_offset_claim()) {
auto const& offs = d.offset();
std::function<void(euf::enode*, euf::enode*)> consume = [&](auto* a, auto* b) {
eqs.push_back({ a, b });
};
explain_slice(offs.v, offs.w, offs.offset, consume);
}
else {