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separate out bounds

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2025-10-29 11:19:10 -07:00
parent 1657fc6ebf
commit cf54e985e8
6 changed files with 103 additions and 30 deletions
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11
src/math/lp/nla_stellensatz.cpp
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@ -317,9 +317,11 @@ namespace nla {
lhs.add_monomial(rational(1), j);
if (non_unit != lp::null_lpvar) {
lhs.add_monomial(rational(-sign), non_unit);
add_ineq(bounds, lhs, lp::lconstraint_kind::EQ, rational(0));
add_ineq(bounds, lhs, lp::lconstraint_kind::GE, rational(0));
add_ineq(bounds, lhs, lp::lconstraint_kind::LE, rational(0));
} else {
add_ineq(bounds, lhs, lp::lconstraint_kind::EQ, rational(sign));
add_ineq(bounds, lhs, lp::lconstraint_kind::GE, rational(sign));
add_ineq(bounds, lhs, lp::lconstraint_kind::LE, rational(sign));
}
}
@ -617,8 +619,8 @@ namespace nla {
while (!to_refine.empty()) {
lpvar j = to_refine.erase_min();
IF_VERBOSE(2, verbose_stream() << "refining " << m_mon2vars[j] << "\n");
unsigned sz = m_monomials_to_refine.size();
TRACE(arith, tout << "refining " << m_mon2vars[j] << " sz " << sz << "\n");
eliminate(j);
for (unsigned i = sz; i < m_monomials_to_refine.size(); ++i) {
auto e = m_monomials_to_refine.elem_at(i);
@ -678,6 +680,7 @@ namespace nla {
// punt on equality constraints for now
}
}
TRACE(arith, tout << "eliminate " << m_mon2vars[mi] << " los: " << los << " his: " << his << "\n");
if (los.empty() || his.empty())
return;
IF_VERBOSE(3, verbose_stream() << "lo " << los << " hi " << his << "\n");
@ -1522,7 +1525,7 @@ namespace nla {
TRACE(arith, s.display(tout));
if (!s.saturate_factors())
return l_false;
// s.saturate_constraints(); ?
s.saturate_constraints2();
if (sz == lra_solver->number_of_vars())
return l_undef;
}