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introduce notion of auxiliary constraints created by nla_solver lemmas

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notes: auxiliary constraints could extend to Gomory and B&B.
This commit is contained in:
Nikolaj Bjorner 2025-06-12 20:37:51 -07:00
parent 93d5e3f28e
commit 8d1e954709
5 changed files with 29 additions and 2 deletions
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8
src/math/lp/lar_solver.cpp
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@ -1744,6 +1744,14 @@ namespace lp {
A_r().m_columns.pop_back();
}
lar_solver::scoped_auxiliary::scoped_auxiliary(lar_solver& s) : s(s) {
s.m_imp->m_constraints.set_auxiliary(true);
}
lar_solver::scoped_auxiliary::~scoped_auxiliary() {
s.m_imp->m_constraints.set_auxiliary(false);
}
void lar_solver::remove_last_column_from_basis_tableau(unsigned j) {
auto& rslv = get_core_solver().m_r_solver;
int i = rslv.m_basis_heading[j];