mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-27 10:55:50 +00:00
Code Activity

use a large delay for nlsat

Browse source
This commit is contained in:
Nikolaj Bjorner 2021-03-14 19:14:44 -07:00
parent 155738088f
commit 845ba7a11e
2 changed files with 10 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

14
src/math/lp/nla_core.cpp
View file

@ -1518,7 +1518,7 @@ lbool core::check(vector<lemma>& l_vec) {
ret = bounded_nlsat();
if (l_vec.empty() && !done()) {
if (l_vec.empty() && !done() && ret == l_undef) {
std::function<void(void)> check1 = [&]() { m_order.order_lemma(); };
std::function<void(void)> check2 = [&]() { m_monotone.monotonicity_lemma(); };
std::function<void(void)> check3 = [&]() { m_tangents.tangent_lemma(); };
@ -1529,10 +1529,9 @@ lbool core::check(vector<lemma>& l_vec) {
{ 1, check3 }};
check_weighted(3, checks);
if (!conflict_found() && m_nla_settings.run_nra() && should_run_bounded_nlsat() &&
lp_settings().stats().m_nla_calls > 500) {
unsigned num_calls = lp_settings().stats().m_nla_calls;
if (!conflict_found() && m_nla_settings.run_nra() && num_calls % 50 == 0 && num_calls > 500)
ret = bounded_nlsat();
}
}
if (l_vec.empty() && !done() && m_nla_settings.run_nra() && ret == l_undef) {
@ -1555,6 +1554,8 @@ lbool core::check(vector<lemma>& l_vec) {
}
bool core::should_run_bounded_nlsat() {
if (!m_nla_settings.run_nra())
return false;
if (m_nlsat_delay > m_nlsat_fails)
++m_nlsat_fails;
return m_nlsat_delay <= m_nlsat_fails;
@ -1570,11 +1571,14 @@ lbool core::bounded_nlsat() {
m_nra.updt_params(p);
m_stats.m_nra_calls++;
if (ret == l_undef)
++m_nlsat_delay;
++m_nlsat_delay;
else {
m_nlsat_fails = 0;
m_nlsat_delay /= 2;
}
if (ret == l_true) {
m_lemma_vec->reset();
}
return ret;
}