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determinize: call bdd_implies less often

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* spot/twaalgos/determinize.cc (safra_state::merge_redundant_states):
Test is_connected before called bdd_implies.
This commit is contained in:
Alexandre Duret-Lutz 2016-11-01 09:08:05 +01:00
parent d919b78c89
commit 3f64e9723f
1 changed files with 12 additions and 18 deletions
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30
spot/twaalgos/determinize.cc
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@ -343,27 +343,21 @@ namespace spot
{
std::vector<int> to_remove;
for (auto& n1: nodes_)
{
for (auto& n2: nodes_)
{
if (n1 == n2)
continue;
// index to see if there is a path from scc2 -> scc1
unsigned idx = scc.scc_count() * scc.scc_of(n2.first) +
scc.scc_of(n1.first);
if (bdd_implies(implications.at(n1.first),
implications.at(n2.first)) && !is_connected[idx])
{
to_remove.push_back(n1.first);
}
}
}
for (auto& n2: nodes_)
{
if (n1 == n2)
continue;
// index to see if there is a path from scc2 -> scc1
unsigned idx = scc.scc_count() * scc.scc_of(n2.first) +
scc.scc_of(n1.first);
if (!is_connected[idx] && bdd_implies(implications.at(n1.first),
implications.at(n2.first)))
to_remove.push_back(n1.first);
}
for (auto& n: to_remove)
{
for (auto& brace: nodes_[n])
{
--nb_braces_[brace];
}
--nb_braces_[brace];
nodes_.erase(n);
}
}