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b-and, stats, reinsert variable to heap, debugging

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This commit is contained in:
Nikolaj Bjorner 2023-12-11 20:22:23 -08:00
parent c03a05eb75
commit f388f58a4b
10 changed files with 55 additions and 30 deletions
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18
src/sat/smt/polysat/core.cpp
View file

@ -119,7 +119,7 @@ namespace polysat {
m_activity.pop_back();
m_justification.pop_back();
m_watch.pop_back();
m_values.pop_back();
m_values.pop_back();
m_var_queue.del_var_eh(v);
}
@ -160,6 +160,7 @@ namespace polysat {
s.add_eq_literal(m_var, m_value);
return sat::check_result::CR_CONTINUE;
case find_t::resource_out:
m_var_queue.unassign_var_eh(m_var);
return sat::check_result::CR_GIVEUP;
}
UNREACHABLE();
@ -342,8 +343,21 @@ namespace polysat {
for (auto const& [sc, d, value] : m_constraint_index)
out << sc << " " << d << " := " << value << "\n";
for (unsigned i = 0; i < m_vars.size(); ++i)
out << "p" << m_vars[i] << " := " << m_values[i] << " " << m_justification[i] << "\n";
out << m_vars[i] << " := " << m_values[i] << " " << m_justification[i] << "\n";
m_var_queue.display(out << "vars ") << "\n";
return out;
}
bool core::try_eval(pdd const& p, rational& r) {
auto q = subst(p);
if (!q.is_val())
return false;
r = q.val();
return true;
}
void core::collect_statistics(statistics& st) const {
}
}

3
src/sat/smt/polysat/core.h
View file

@ -104,6 +104,9 @@ namespace polysat {
pdd value(rational const& v, unsigned sz);
pdd subst(pdd const&);
bool try_eval(pdd const& p, rational& r);
void collect_statistics(statistics& st) const;
signed_constraint eq(pdd const& p) { return m_constraints.eq(p); }
signed_constraint eq(pdd const& p, pdd const& q) { return m_constraints.eq(p - q); }