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wip - integrating arithmetic local search

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This commit is contained in:
Nikolaj Bjorner 2023-02-09 15:52:32 -08:00
parent 1b0c76e3f0
commit d22e4aa525
7 changed files with 280 additions and 169 deletions
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27
src/sat/sat_ddfw.cpp
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@ -129,6 +129,7 @@ namespace sat {
void ddfw::add(unsigned n, literal const* c) {
clause* cls = m_alloc.mk_clause(n, c, false);
unsigned idx = m_clauses.size();
m_clauses.push_back(clause_info(cls, m_config.m_init_clause_weight));
for (literal lit : *cls) {
m_use_list.reserve(2*(lit.var()+1));
@ -137,6 +138,18 @@ namespace sat {
}
}
/**
* Remove the last clause that was added
*/
void ddfw::del() {
auto& info = m_clauses.back();
for (literal lit : *info.m_clause)
m_use_list[lit.index()].pop_back();
m_alloc.del_clause(info.m_clause);
m_clauses.pop_back();
m_unsat.remove(m_clauses.size());
}
void ddfw::add(solver const& s) {
for (auto& ci : m_clauses)
m_alloc.del_clause(ci.m_clause);
@ -169,9 +182,17 @@ namespace sat {
}
void ddfw::add_assumptions() {
for (unsigned i = 0; i < m_assumptions.size(); ++i) {
add(1, m_assumptions.data() + i);
}
for (unsigned i = 0; i < m_assumptions.size(); ++i)
add(1, m_assumptions.data() + i);
}
void ddfw::remove_assumptions() {
for (unsigned i = 0; i < m_assumptions.size(); ++i)
del();
m_unsat_vars.reset();
for (auto idx : m_unsat)
for (auto lit : get_clause(idx))
m_unsat_vars.insert(lit.var());
}
void ddfw::init(unsigned sz, literal const* assumptions) {