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more agressive variable elimination

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-10-14 18:33:38 -07:00
parent 1109316621
commit 46fa245324
3 changed files with 118 additions and 31 deletions
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10
src/sat/sat_simplifier.cpp
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@ -191,6 +191,12 @@ namespace sat {
// scoped_finalize _scoped_finalize(*this);
for (bool_var v = 0; v < s.num_vars(); ++v) {
if (!s.m_eliminated[v] && !is_external(v)) {
insert_elim_todo(v);
}
}
do {
if (m_subsumption)
subsume();
@ -1455,7 +1461,7 @@ namespace sat {
elim_var_report rpt(*this);
bool_var_vector vars;
order_vars_for_elim(vars);
// sat::elim_vars elim_bdd(*this);
sat::elim_vars elim_bdd(*this);
std::cout << "vars to elim: " << vars.size() << "\n";
for (bool_var v : vars) {
@ -1465,7 +1471,7 @@ namespace sat {
if (try_eliminate(v)) {
m_num_elim_vars++;
}
#if 0
#if 1
else if (elim_bdd(v)) {
m_num_elim_vars++;
}