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bug fixes

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-05-22 14:27:34 -07:00
parent f698efa403
commit f9f0b2221d
3 changed files with 29 additions and 52 deletions
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35
src/sat/sat_solver.cpp
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@ -1937,23 +1937,25 @@ namespace sat {
void solver::learn_lemma_and_backjump() {
TRACE("sat_lemma", tout << "new lemma size: " << m_lemma.size() << "\n" << m_lemma << "\n";);
if (m_config.m_minimize_lemmas) {
minimize_lemma();
reset_lemma_var_marks();
if (m_config.m_dyn_sub_res)
dyn_sub_res();
TRACE("sat_lemma", tout << "new lemma (after minimization) size: " << m_lemma.size() << "\n" << m_lemma << "\n";);
}
else
reset_lemma_var_marks();
literal_vector::iterator it = m_lemma.begin();
literal_vector::iterator end = m_lemma.end();
unsigned new_scope_lvl = 0;
++it;
for(; it != end; ++it) {
bool_var var = (*it).var();
new_scope_lvl = std::max(new_scope_lvl, lvl(var));
if (!m_lemma.empty()) {
if (m_config.m_minimize_lemmas) {
minimize_lemma();
reset_lemma_var_marks();
if (m_config.m_dyn_sub_res)
dyn_sub_res();
TRACE("sat_lemma", tout << "new lemma (after minimization) size: " << m_lemma.size() << "\n" << m_lemma << "\n";);
}
else
reset_lemma_var_marks();
literal_vector::iterator it = m_lemma.begin();
literal_vector::iterator end = m_lemma.end();
++it;
for(; it != end; ++it) {
bool_var var = (*it).var();
new_scope_lvl = std::max(new_scope_lvl, lvl(var));
}
}
unsigned glue = num_diff_levels(m_lemma.size(), m_lemma.c_ptr());
@ -2389,6 +2391,7 @@ namespace sat {
assigned at level 0.
*/
void solver::minimize_lemma() {
SASSERT(!m_lemma.empty());
SASSERT(m_unmark.empty());
//m_unmark.reset();
updt_lemma_lvl_set();