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snap variables to bounds when maximizing terms

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-03-13 15:28:50 -07:00
parent 75b1e8fe27
commit f336039da3
6 changed files with 80 additions and 69 deletions
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7
src/util/lp/lar_solver.h
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@ -359,7 +359,14 @@ public:
void detect_rows_with_changed_bounds_for_column(unsigned j);
void detect_rows_with_changed_bounds();
inline bool is_base(unsigned j) const {
return m_mpq_lar_core_solver.m_r_heading[j] >= 0;
}
bool move_non_basic_columns_to_bounds();
bool move_non_basic_column_to_bounds(unsigned j);
void set_value_for_nbasic_column(unsigned j, const impq & new_val);
void update_x_and_inf_costs_for_columns_with_changed_bounds();
void update_x_and_inf_costs_for_columns_with_changed_bounds_tableau();