mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-26 18:45:33 +00:00
Code Activity

fixes

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2024-11-15 09:29:24 -08:00
parent 88048901f0
commit ccbe6c33ae
3 changed files with 22 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

37
src/ast/sls/sls_smt_plugin.cpp
View file

@ -106,6 +106,7 @@ namespace sls {
m_rewards[v] = m_ddfw->get_reward_avg(w);
}
m_completed = true;
m_min_unsat_size = UINT_MAX;
}
void smt_plugin::bounded_run(unsigned max_iterations) {
@ -174,6 +175,7 @@ namespace sls {
}
void smt_plugin::add_unit(sat::literal lit) {
verbose_stream() << "add unit " << lit << " " << is_shared(lit) << "\n";
if (!is_shared(lit))
return;
std::lock_guard<std::mutex> lock(m_mutex);
@ -194,27 +196,29 @@ namespace sls {
bool smt_plugin::export_to_sls() {
bool updated = false;
if (export_units_to_sls())
if (m_has_units) {
std::lock_guard<std::mutex> lock(m_mutex);
smt_units_to_sls();
m_has_units = false;
updated = true;
if (export_phase_to_sls())
}
if (m_has_new_sat_phase) {
std::lock_guard<std::mutex> lock(m_mutex);
export_phase_to_sls();
m_has_new_sat_phase = false;
updated = true;
}
return updated;
}
bool smt_plugin::export_phase_to_sls() {
if (!m_has_new_sat_phase)
return false;
std::lock_guard<std::mutex> lock(m_mutex);
IF_VERBOSE(3, verbose_stream() << "SMT -> SLS phase\n");
void smt_plugin::export_phase_to_sls() {
IF_VERBOSE(2, verbose_stream() << "SMT -> SLS phase\n");
for (auto v : m_shared_bool_vars) {
auto w = m_smt_bool_var2sls_bool_var[v];
if (m_sat_phase[v] != is_true(sat::literal(w, false)))
flip(w);
m_ddfw->bias(w) = m_sat_phase[v] ? 1 : -1;
}
smt_phase_to_sls();
m_has_new_sat_phase = false;
return true;
}
void smt_plugin::smt_phase_to_sls() {
@ -250,27 +254,22 @@ namespace sls {
ctx.inc_activity(v, 200 * m_rewards[v]);
}
bool smt_plugin::export_units_to_sls() {
if (!m_has_units)
return false;
std::lock_guard<std::mutex> lock(m_mutex);
IF_VERBOSE(2, verbose_stream() << "SMT -> SLS units " << m_units << "\n");
void smt_plugin::smt_units_to_sls() {
IF_VERBOSE(2, if (!m_units.empty()) verbose_stream() << "SMT -> SLS units " << m_units << "\n");
for (auto lit : m_units) {
auto v = lit.var();
if (m_shared_bool_vars.contains(v)) {
auto w = m_smt_bool_var2sls_bool_var[v];
sat::literal sls_lit(w, lit.sign());
IF_VERBOSE(10, verbose_stream() << "unit " << sls_lit << "\n");
IF_VERBOSE(2, verbose_stream() << "unit " << sls_lit << "\n");
m_ddfw->add(1, &sls_lit);
}
else {
IF_VERBOSE(0, verbose_stream() << "value restriction " << lit << " "
<< mk_bounded_pp(ctx.bool_var2expr(lit.var()), m) << "\n");
}
}
m_has_units = false;
}
m_units.reset();
return true;
}
void smt_plugin::export_from_sls() {

4
src/ast/sls/sls_smt_plugin.h
View file

@ -92,8 +92,7 @@ namespace sls {
void export_values_from_sls();
void export_phase_from_sls();
void import_activity_from_sls();
bool export_phase_to_sls();
bool export_units_to_sls();
void export_phase_to_sls();
void export_values_to_smt();
void export_activity_to_smt();
@ -136,6 +135,7 @@ namespace sls {
void smt_phase_to_sls();
void smt_values_to_sls();
void smt_units_to_sls();
void sls_phase_to_smt();
void sls_values_to_smt();
void sls_activity_to_smt();

2
src/smt/theory_sls.cpp
View file

@ -139,6 +139,7 @@ namespace smt {
if (ctx.m_stats.m_num_restarts >= m_threshold + 5) {
m_threshold *= 2;
m_smt_plugin->smt_units_to_sls();
bounded_run(m_restart_ls_steps);
m_smt_plugin->sls_activity_to_smt();
}
@ -165,6 +166,7 @@ namespace smt {
++m_num_guided_sls;
m_smt_plugin->smt_phase_to_sls();
m_smt_plugin->smt_units_to_sls();
m_smt_plugin->smt_values_to_sls();
bounded_run(m_final_check_ls_steps);
dec_final_check_ls_steps();