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fix #6692

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This commit is contained in:
Nikolaj Bjorner 2023-04-17 09:11:16 -07:00
parent 97b66d13c0
commit 1319b64bb0
1 changed files with 6 additions and 5 deletions
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11
src/sat/smt/pb_solver.cpp
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@ -2858,19 +2858,20 @@ namespace pb {
void solver::subsumes(pbc& p1, literal lit) {
for (constraint* c : m_cnstr_use_list[lit.index()]) {
if (c == &p1 || c->was_removed()) continue;
bool s = false;
if (c == &p1 || c->was_removed() || c->lit() != sat::null_literal)
continue;
bool sub = false;
switch (c->tag()) {
case pb::tag_t::card_t:
s = subsumes(p1, c->to_card());
sub = subsumes(p1, c->to_card());
break;
case pb::tag_t::pb_t:
s = subsumes(p1, c->to_pb());
sub = subsumes(p1, c->to_pb());
break;
default:
break;
}
if (s) {
if (sub) {
++m_stats.m_num_pb_subsumes;
set_non_learned(p1);
remove_constraint(*c, "subsumed");