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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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5
src/sat/ba_solver.cpp
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@ -3158,12 +3158,9 @@ namespace sat {
if (w.is_binary_clause() && is_marked(w.get_literal())) {
++m_stats.m_num_bin_subsumes;
// IF_VERBOSE(10, verbose_stream() << c1 << " subsumes (" << lit << " " << w.get_literal() << ")\n";);
if (w.is_learned()) {
if (!w.is_learned()) {
c1.set_learned(false);
}
else if (w.is_blocked()) {
w.set_unblocked();
}
}
else {
if (it != it2) {