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arrays (#4684)

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* arrays

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* arrays

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* arrays

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* fill

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* update drat and fix euf bugs

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* const qualifiers

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* na

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* reorg ba

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* reorg

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* build warnings

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-09-13 19:29:59 -07:00 • committed by GitHub
parent d56dd1db7b
commit 796e2fd9eb
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79 changed files with 2571 additions and 1850 deletions
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15
src/sat/sat_elim_eqs.cpp
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@ -63,22 +63,14 @@ namespace sat {
// consume tautology
continue;
}
#if 0
if (l1 != r1) {
// add half r1 => r2, the other half ~r2 => ~r1 is added when traversing l2
m_solver.m_watches[(~r1).index()].push_back(watched(r2, it->is_learned()));
continue;
}
it->set_literal(r2); // keep it.
#else
if (l1 != r1 || l2 != r2) {
if (r1.index() < r2.index()) {
TRACE("elim_eqs", tout << l1 << " " << l2 << " " << r1 << " " << r2 << "\n";);
m_new_bin.push_back(bin(r1, r2, it->is_learned()));
}
continue;
}
// keep it
#endif
}
*itprev = *it;
itprev++;
@ -233,9 +225,10 @@ namespace sat {
if (m_solver.m_cut_simplifier) m_solver.m_cut_simplifier->set_root(v, r);
bool set_root = m_solver.set_root(l, r);
bool root_ok = !m_solver.is_external(v) || set_root;
TRACE("elim_eqs", tout << l << " " << r << "\n";);
if (m_solver.is_assumption(v) || (m_solver.is_external(v) && (m_solver.is_incremental() || !root_ok))) {
// cannot really eliminate v, since we have to notify extension of future assignments
if (m_solver.m_config.m_drat && m_solver.m_config.m_drat_file.is_null()) {
if (m_solver.m_config.m_drat) {
m_solver.m_drat.add(~l, r, sat::status::redundant());
m_solver.m_drat.add(l, ~r, sat::status::redundant());
}
@ -291,6 +284,7 @@ namespace sat {
}
void elim_eqs::operator()(union_find<>& uf) {
TRACE("elim_eqs", tout << "before union-find bin\n";);
literal_vector roots(m_solver.num_vars(), null_literal);
bool_var_vector to_elim;
for (unsigned i = m_solver.num_vars(); i-- > 0; ) {
@ -299,6 +293,7 @@ namespace sat {
if (idx != l1.index()) {
roots[i] = to_literal(idx);
to_elim.push_back(i);
TRACE("elim_eqs", tout << "remove " << roots[i] << "\n";);
}
else {
roots[i] = l1;