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progress with horner's heuristic

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-07-03 14:30:36 -07:00
parent 7f9d57e6fa
commit 2181c982e8
7 changed files with 73 additions and 36 deletions
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21
src/math/lp/nla_intervals.cpp
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@ -75,10 +75,8 @@ void intervals::set_var_interval_with_deps(lpvar v, interval& b) {
}
}
void intervals::check_interval_for_conflict_on_zero(const interval & i) {
if (check_interval_for_conflict_on_zero_lower(i))
return;
check_interval_for_conflict_on_zero_upper(i);
bool intervals::check_interval_for_conflict_on_zero(const interval & i) {
return check_interval_for_conflict_on_zero_lower(i) || check_interval_for_conflict_on_zero_upper(i);
}
bool intervals::check_interval_for_conflict_on_zero_upper(const interval & i) {
@ -98,7 +96,7 @@ bool intervals::check_interval_for_conflict_on_zero_upper(const interval & i) {
bool intervals::check_interval_for_conflict_on_zero_lower(const interval & i) {
if (lower_is_inf(i))
return false;
if (unsynch_mpq_manager::is_pos(lower(i)))
if (unsynch_mpq_manager::is_neg(lower(i)))
return false;
if (unsynch_mpq_manager::is_zero(lower(i)) && !m_config.lower_is_open(i))
return false;
@ -126,6 +124,19 @@ std::ostream& intervals::display(std::ostream& out, const interval& i) const {
} else {
out << rational(m_imanager.upper(i)) << (m_imanager.lower_is_open(i)? ")":"]");
}
svector<lp::constraint_index> expl;
m_dep_manager.linearize(i.m_lower_dep, expl);
out << "\nlower constraints (\n";
for (lp::constraint_index c: expl)
m_core->m_lar_solver.print_constraint_indices_only(c, out);
out << ")\n";
expl.clear();
m_dep_manager.linearize(i.m_upper_dep, expl);
out << "upper constraints (\n";
for (lp::constraint_index c: expl)
m_core->m_lar_solver.print_constraint_indices_only(c, out);
out << ")\n";
return out;
}