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fix debug assertion code, make maxlex optional

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-01-25 08:23:41 -08:00
parent d3d392da41
commit 1ed68906fa
3 changed files with 5 additions and 8 deletions
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9
src/opt/maxlex.cpp
View file

@ -26,10 +26,6 @@ Author:
namespace opt {
bool is_maxlex(weights_t & _ws) {
// disable for now
#if true
return false;
#else
vector<rational> ws(_ws);
std::sort(ws.begin(), ws.end());
ws.reverse();
@ -42,7 +38,6 @@ namespace opt {
sum -= w;
}
return true;
#endif
}
class maxlex : public maxsmt_solver_base {
@ -141,7 +136,7 @@ namespace opt {
if (soft.value == l_true) {
continue;
}
SASSERT(soft.value() == l_undef);
SASSERT(soft.value == l_undef);
expr* a = soft.s;
lbool is_sat = s().check_sat(1, &a);
switch (is_sat) {
@ -169,7 +164,7 @@ namespace opt {
if (soft.value != l_undef) {
continue;
}
SASSERT(soft.value() == l_undef);
SASSERT(soft.value == l_undef);
if (i + 1 == sz) {
expr* a = soft.s;
lbool is_sat = s().check_sat(1, &a);

3
src/opt/maxsmt.cpp
View file

@ -232,10 +232,11 @@ namespace opt {
lbool maxsmt::operator()() {
lbool is_sat = l_undef;
m_msolver = nullptr;
opt_params optp(m_params);
symbol const& maxsat_engine = m_c.maxsat_engine();
IF_VERBOSE(1, verbose_stream() << "(maxsmt)\n";);
TRACE("opt_verbose", s().display(tout << "maxsmt\n") << "\n";);
if (is_maxlex(m_weights)) {
if (optp.maxlex_enable() && is_maxlex(m_weights)) {
m_msolver = mk_maxlex(m_c, m_index, m_weights, m_soft_constraints);
}
else if (m_soft_constraints.empty() || maxsat_engine == symbol("maxres") || maxsat_engine == symbol::null) {

1
src/opt/opt_params.pyg
View file

@ -14,6 +14,7 @@ def_module_params('opt',
('elim_01', BOOL, True, 'eliminate 01 variables'),
('pp.neat', BOOL, True, 'use neat (as opposed to less readable, but faster) pretty printer when displaying context'),
('pb.compile_equality', BOOL, False, 'compile arithmetical equalities into pseudo-Boolean equality (instead of two inequalites)'),
('maxlex.enable', BOOL, False, 'enable maxlex heuristic for lexicographic MaxSAT problems'),
('maxres.hill_climb', BOOL, True, 'give preference for large weight cores'),
('maxres.add_upper_bound_block', BOOL, False, 'restict upper bound with constraint'),
('maxres.max_num_cores', UINT, UINT_MAX, 'maximal number of cores per round'),