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use lookahead for simplification

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-04-18 16:58:56 -07:00
parent 352f8b6cb9
commit a3f4d58b00
11 changed files with 183 additions and 45 deletions
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4
src/sat/sat_scc.cpp
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@ -76,7 +76,9 @@ namespace sat {
lowlink.resize(num_lits, UINT_MAX);
in_s.resize(num_lits, false);
literal_vector roots;
roots.resize(m_solver.num_vars(), null_literal);
for (unsigned i = 0; i < m_solver.num_vars(); ++i) {
roots.push_back(literal(i, false));
}
unsigned next_index = 0;
svector<frame> frames;
bool_var_vector to_elim;