mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-07-19 10:52:02 +00:00
Code Activity

use cone of influence reduction before calling nlsat.

Browse source
This commit is contained in:
Nikolaj Bjorner 2023-10-25 16:19:16 -07:00
parent e2db2b864b
commit 20c54048f7
6 changed files with 323 additions and 138 deletions
Download patch file Download diff file Expand all files Collapse all files

9
src/math/lp/nla_core.cpp
View file

@ -1549,7 +1549,6 @@ lbool core::check() {
lbool ret = l_undef;
bool run_grobner = need_run_grobner();
bool run_horner = need_run_horner();
bool run_bounded_nlsat = should_run_bounded_nlsat();
bool run_bounds = params().arith_nl_branching();
auto no_effect = [&]() { return !done() && m_lemmas.empty() && m_literals.empty() && !m_check_feasible; };
@ -1572,7 +1571,7 @@ lbool core::check() {
return l_false;
}
if (no_effect() && run_bounded_nlsat)
if (no_effect() && should_run_bounded_nlsat())
ret = bounded_nlsat();
if (no_effect())
@ -1582,8 +1581,7 @@ lbool core::check() {
m_basics.basic_lemma(false);
if (no_effect())
m_divisions.check();
m_divisions.check();
if (no_effect() && ret == l_undef) {
std::function<void(void)> check1 = [&]() { m_order.order_lemma(); };
@ -1610,7 +1608,6 @@ lbool core::check() {
ret = l_false;
lp_settings().stats().m_nla_lemmas += m_lemmas.size();
TRACE("nla_solver", tout << "ret = " << ret << ", lemmas count = " << m_lemmas.size() << "\n";);
IF_VERBOSE(5, if(ret == l_undef) {verbose_stream() << "Monomials\n"; print_monics(verbose_stream());});
@ -1623,7 +1620,7 @@ bool core::should_run_bounded_nlsat() {
return false;
if (m_nlsat_delay > 0)
--m_nlsat_delay;
return m_nlsat_delay < 5;
return m_nlsat_delay < 2;
}
lbool core::bounded_nlsat() {