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fix #4624 #4633 #4632 #4631

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-08-13 08:36:16 -07:00
parent 84390575e2
commit c41abf2241
4 changed files with 29 additions and 32 deletions
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51
src/smt/theory_pb.cpp
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@ -1325,37 +1325,37 @@ namespace smt {
bool theory_pb::gc() {
unsigned z = 0, nz = 0;
m_occs.reset();
for (unsigned i = 0; i < m_card_trail.size(); ++i) {
bool_var v = m_card_trail[i];
if (v == null_bool_var) continue;
if (v == null_bool_var)
continue;
card* c = m_var_infos[v].m_card;
if (c) {
c->reset_propagations();
literal lit = c->lit();
if (c->is_aux() && ctx.get_assign_level(lit) > ctx.get_search_level()) {
double activity = ctx.get_activity(v);
if (activity <= 0) {
nz++;
}
else {
z++;
clear_watch(*c);
m_var_infos[v].m_card = nullptr;
dealloc(c);
m_card_trail[i] = null_bool_var;
ctx.remove_watch(v);
// TBD: maybe v was used in a clause for propagation.
m_occs.insert(v);
}
if (!c)
continue;
c->reset_propagations();
literal lit = c->lit();
if (c->is_aux() && ctx.get_assign_level(lit) > ctx.get_search_level()) {
double activity = ctx.get_activity(v);
if (activity <= 0) {
nz++;
}
else {
z++;
clear_watch(*c);
m_var_infos[v].m_card = nullptr;
dealloc(c);
m_card_trail[i] = null_bool_var;
ctx.remove_watch(v);
// TBD: maybe v was used in a clause for propagation.
m_occs.insert(v);
}
}
}
clause_vector const& lemmas = ctx.get_lemmas();
for (unsigned i = 0; i < lemmas.size(); ++i) {
clause* cl = lemmas[i];
#if 0
for (clause* cl : ctx.get_lemmas()) {
if (!cl->deleted()) {
for (literal lit : *cl) {
if (m_occs.contains(lit.var())) {
@ -1365,9 +1365,6 @@ namespace smt {
}
}
//std::cout << "zs: " << z << " nzs: " << nz << " lemmas: " << ctx.get_lemmas().size() << " trail: " << m_card_trail.size() << "\n";
return z*10 >= nz;
m_occs.reset();
for (unsigned i = 0; i < lemmas.size(); ++i) {
clause* cl = lemmas[i];
@ -1377,6 +1374,8 @@ namespace smt {
m_occs.insert(idx);
}
}
#endif
return z*10 >= nz;
}