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more aggressive patching

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-05-26 14:56:13 -07:00
parent e5503cdc65
commit b84585beeb
5 changed files with 27 additions and 26 deletions
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11
src/math/lp/lar_solver.cpp
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@ -2431,6 +2431,17 @@ bool lar_solver::inside_bounds(lpvar j, const impq& val) const {
return true;
}
void lar_solver::set_value_for_nbasic_column_ignore_old_values(unsigned j, const impq & new_val) {
lp_assert(!is_base(j));
auto & x = m_mpq_lar_core_solver.m_r_x[j];
auto delta = new_val - x;
x = new_val;
TRACE("int_solver", tout << "x[" << j << "] = " << x << "\n";);
change_basic_columns_dependend_on_a_given_nb_column(j, delta);
}
void lar_solver::pivot_column_tableau(unsigned j, unsigned row_index) {
m_mpq_lar_core_solver.m_r_solver.pivot_column_tableau(j, row_index);
m_mpq_lar_core_solver.m_r_solver.change_basis(j, r_basis()[row_index]);