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throttle big-reductions #2101 #2098

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-01-24 14:00:56 -08:00
parent 498864c582
commit 8da1d6070b
3 changed files with 21 additions and 5 deletions
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2
src/sat/sat_big.cpp
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@ -172,6 +172,7 @@ namespace sat {
void big::add_del(literal u, literal v) {
if (u.index() > v.index()) std::swap(u, v);
m_del_bin[u.index()].push_back(v);
}
@ -210,7 +211,6 @@ namespace sat {
}
wlist.set_end(itprev);
}
s.propagate(false);
return elim;
}

8
src/sat/sat_scc.cpp
View file

@ -244,10 +244,10 @@ namespace sat {
}
void scc::reduce_tr() {
unsigned quota = 0, num_reduced = 0;
while ((num_reduced = reduce_tr(false)) > quota) { quota = std::max(100u, num_reduced / 2); }
quota = 0;
while ((num_reduced = reduce_tr(true)) > quota) { quota = std::max(100u, num_reduced / 2); }
unsigned quota = 0, num_reduced = 0, count = 0;
while ((num_reduced = reduce_tr(false)) > quota && count++ < 10) { quota = std::max(100u, num_reduced / 2); }
quota = 0; count = 0;
while ((num_reduced = reduce_tr(true)) > quota && count++ < 10) { quota = std::max(100u, num_reduced / 2); }
}
void scc::collect_statistics(statistics & st) const {