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tune lra optimization

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-05-22 17:03:29 -07:00
parent 927d714d7b
commit c725fe7698
8 changed files with 259 additions and 55 deletions
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21
src/opt/opt_context.cpp
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@ -1300,6 +1300,9 @@ namespace opt {
}
get_memory_statistics(stats);
get_rlimit_statistics(m.limit(), stats);
if (m_qmax) {
m_qmax->collect_statistics(stats);
}
}
void context::collect_param_descrs(param_descrs & r) {
@ -1440,6 +1443,9 @@ namespace opt {
m_objectives[0].m_type != O_MINIMIZE) {
return false;
}
if (!m_arith.is_real(m_objectives[0].m_term)) {
return false;
}
for (unsigned i = 0; i < m_hard_constraints.size(); ++i) {
if (has_quantifiers(m_hard_constraints[i].get())) {
return true;
@ -1456,12 +1462,21 @@ namespace opt {
term = m_arith.mk_uminus(term);
}
inf_eps value;
lbool result = qe::maximize(m_hard_constraints, term, value, m_model, m_params);
m_qmax = alloc(qe::qmax, m, m_params);
lbool result = (*m_qmax)(m_hard_constraints, term, value, m_model);
if (result != l_undef && obj.m_type == O_MINIMIZE) {
value.neg();
}
if (result != l_undef) {
m_optsmt.setup(*m_opt_solver.get());
m_optsmt.setup(*m_opt_solver.get());
if (result == l_undef) {
if (obj.m_type == O_MINIMIZE) {
m_optsmt.update_upper(obj.m_index, value);
}
else {
m_optsmt.update_lower(obj.m_index, value);
}
}
else {
m_optsmt.update_lower(obj.m_index, value);
m_optsmt.update_upper(obj.m_index, value);
}