mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-06-28 08:58:44 +00:00
Code Activity

runs a simple test

Browse source
This commit is contained in:
Lev Nachmanson 2023-09-13 08:12:00 -07:00
parent c050af922f
commit c309d52283
11 changed files with 291 additions and 112 deletions
Download patch file Download diff file Expand all files Collapse all files

56
src/smt/theory_lra.cpp
View file

@ -2150,7 +2150,7 @@ public:
case l_true:
propagate_basic_bounds();
propagate_bounds_with_lp_solver();
propagate_nla();
propagate_bounds_with_nlp();
break;
case l_undef:
UNREACHABLE();
@ -2185,33 +2185,55 @@ public:
set_evidence(j, m_core, m_eqs);
m_explanation.add_pair(j, v);
}
void propagate_bounds_with_lp_solver() {
if (!should_propagate())
return;
m_bp.init();
lp().propagate_bounds_for_touched_rows(m_bp);
if (!m.inc())
return;
void finish_bound_propagation() {
if (is_infeasible()) {
get_infeasibility_explanation_and_set_conflict();
// verbose_stream() << "unsat\n";
}
else {
unsigned count = 0, prop = 0;
for (auto& ib : m_bp.ibounds()) {
} else {
for (auto &ib : m_bp.ibounds()) {
m.inc();
if (ctx().inconsistent())
break;
++prop;
count += propagate_lp_solver_bound(ib);
propagate_lp_solver_bound(ib);
}
}
}
void propagate_bounds_with_lp_solver() {
if (!should_propagate())
return;
m_bp.init();
lp().propagate_bounds_for_touched_rows(m_bp);
if (m.inc())
finish_bound_propagation();
}
void calculate_implied_bounds_for_monic(lpvar monic_var, const svector<lpvar>& vars) {
m_bp.propagate_monic(monic_var, vars);
}
void propagate_bounds_for_touched_monomials() {
for (unsigned v : m_nla->monics_with_changed_bounds()) {
calculate_implied_bounds_for_monic(v, m_nla->get_core().emons()[v].vars());
}
m_nla->reset_monics_with_changed_bounds();
}
void propagate_bounds_with_nlp() {
if (!m_nla)
return;
if (is_infeasible() || !should_propagate())
return;
m_bp.init();
propagate_bounds_for_touched_monomials();
if (m.inc())
finish_bound_propagation();
}
bool bound_is_interesting(unsigned vi, lp::lconstraint_kind kind, const rational & bval) const {
theory_var v = lp().local_to_external(vi);
if (v == null_theory_var)