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Gomory cut / branch and bound improvements

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Improve fairness of cut generation by switching to find_infeasible_int_var with cascading priorities, allow stronger cuts by inlining terms.
This commit is contained in:
Nikolaj Bjorner 2023-11-07 19:57:30 +01:00
parent 9f0b3cdc25
commit 3d99ed9dd4
5 changed files with 230 additions and 100 deletions
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4
src/math/lp/int_branch.cpp
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@ -52,8 +52,8 @@ lia_move int_branch::create_branch_on_column(int j) {
int int_branch::find_inf_int_base_column() {
#if 0
return lia.select_int_infeasible_var();
#if 1
return lia.select_int_infeasible_var(false);
#endif
int result = -1;