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add parameter class for polysat

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-04-12 10:35:23 +02:00
parent f2b9c27ed6
commit afa7162ab1
4 changed files with 25 additions and 8 deletions
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2
src/math/polysat/CMakeLists.txt
View file

@ -28,4 +28,6 @@ z3_add_component(polysat
simplex
interval
bigfix
PYG_FILES
polysat_params.pyg
)

6
src/math/polysat/polysat_params.pyg Normal file
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@ -0,0 +1,6 @@
def_module_params('polysat',
description='polysat solver',
export=True,
params=(('log_conflicts', BOOL, True, "log conflicts"),
))

13
src/math/polysat/solver.cpp
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@ -20,6 +20,7 @@ Author:
#include "math/polysat/explain.h"
#include "math/polysat/log.h"
#include "math/polysat/variable_elimination.h"
#include "math/polysat/polysat_params.hpp"
// For development; to be removed once the linear solver works well enough
#define ENABLE_LINEAR_SOLVER 0
@ -48,16 +49,18 @@ namespace polysat {
}
void solver::updt_params(params_ref const& p) {
polysat_params pp(p);
m_params.append(p);
m_max_conflicts = m_params.get_uint("max_conflicts", UINT_MAX);
m_max_decisions = m_params.get_uint("max_decisions", UINT_MAX);
m_config.m_max_conflicts = m_params.get_uint("max_conflicts", UINT_MAX);
m_config.m_max_decisions = m_params.get_uint("max_decisions", UINT_MAX);
m_config.m_log_conflicts = pp.log_conflicts();
}
bool solver::should_search() {
return
m_lim.inc() &&
(m_stats.m_num_conflicts < m_max_conflicts) &&
(m_stats.m_num_decisions < m_max_decisions);
(m_stats.m_num_conflicts < get_config().m_max_conflicts) &&
(m_stats.m_num_decisions < get_config().m_max_decisions);
}
lbool solver::check_sat() {
@ -86,7 +89,7 @@ namespace polysat {
lbool solver::unit_propagate() {
return l_undef;
// disabled to allow debugging unsoundness for watched literals
flet<uint64_t> _max_d(m_max_conflicts, m_stats.m_num_conflicts + 2);
flet<uint64_t> _max_d(m_config.m_max_conflicts, m_stats.m_num_conflicts + 2);
return check_sat();
}

12
src/math/polysat/solver.h
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@ -39,6 +39,12 @@ Author:
namespace polysat {
struct config {
uint64_t m_max_conflicts = std::numeric_limits<uint64_t>::max();
uint64_t m_max_decisions = std::numeric_limits<uint64_t>::max();
bool m_log_conflicts = false;
};
class solver {
struct stats {
@ -94,9 +100,7 @@ namespace polysat {
var_queue m_free_pvars; // free poly vars
stats m_stats;
uint64_t m_max_conflicts = std::numeric_limits<uint64_t>::max();
uint64_t m_max_decisions = std::numeric_limits<uint64_t>::max();
config m_config;
// Per constraint state
constraint_manager m_constraints;
@ -402,6 +406,8 @@ namespace polysat {
void updt_params(params_ref const& p);
config const& get_config() const { return m_config; }
}; // class solver
class assignments_pp {