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fix configuration for compiling equalities, add extended binaries

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-02-08 09:09:53 -08:00
parent 5e482def18
commit 4f630f2a00
3 changed files with 33 additions and 9 deletions
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21
src/sat/sat_big.cpp
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@ -30,6 +30,7 @@ namespace sat {
unsigned num_lits = m_num_vars * 2;
literal_vector lits, r;
SASSERT(num_lits == m_dag.size() && num_lits == m_roots.size());
size_t_map<bool> seen_idx;
for (unsigned l_idx = 0; l_idx < num_lits; l_idx++) {
literal u = to_literal(l_idx);
if (s.was_eliminated(u.var()))
@ -41,11 +42,27 @@ namespace sat {
m_roots[v.index()] = false;
edges.push_back(v);
}
#if 0
#if 1
if (w.is_ext_constraint() &&
s.m_ext &&
learned &&
!seen_idx.contains(w.get_ext_constraint_idx()) &&
s.m_ext->is_extended_binary(w.get_ext_constraint_idx(), r)) {
IF_VERBOSE(0, verbose_stream() << "extended binary " << r.size() << "\n";);
seen_idx.insert(w.get_ext_constraint_idx(), true);
for (unsigned i = 0; i < r.size(); ++i) {
literal u = r[i];
for (unsigned j = i + 1; j < r.size(); ++j) {
// add r[i] -> ~r[j]
literal v = ~r[j];
m_roots[v.index()] = false;
m_dag[u.index()].push_back(v);
// add r[j] -> ~r[i]
v.neg();
u.neg();
m_roots[u.index()] = false;
m_dag[v.index()].push_back(u);
}
}
}
#endif
}