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fix transitive reduction bug, eliminate blocked tag on binary clauses, separate BIG structure from scc

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-12-13 02:38:06 -08:00
commit 71c52396cb
26 changed files with 572 additions and 355 deletions
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8
src/sat/sat_elim_vars.cpp
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@ -85,8 +85,8 @@ namespace sat{
// eliminate variable
simp.m_pos_cls.reset();
simp.m_neg_cls.reset();
simp.collect_clauses(pos_l, simp.m_pos_cls, false);
simp.collect_clauses(neg_l, simp.m_neg_cls, false);
simp.collect_clauses(pos_l, simp.m_pos_cls);
simp.collect_clauses(neg_l, simp.m_neg_cls);
VERIFY(!s.is_external(v));
model_converter::entry & mc_entry = s.m_mc.mk(model_converter::ELIM_VAR, v);
simp.save_clauses(mc_entry, simp.m_pos_cls);
@ -295,7 +295,7 @@ namespace sat{
bool elim_vars::mark_literals(literal lit) {
watch_list& wl = simp.get_wlist(lit);
for (watched const& w : wl) {
if (w.is_binary_unblocked_clause()) {
if (w.is_binary_non_learned_clause()) {
mark_var(w.get_literal().var());
}
}
@ -321,7 +321,7 @@ namespace sat{
bdd result = m.mk_true();
watch_list& wl = simp.get_wlist(~lit);
for (watched const& w : wl) {
if (w.is_binary_unblocked_clause()) {
if (w.is_binary_non_learned_clause()) {
result &= (mk_literal(lit) || mk_literal(w.get_literal()));
}
}