mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-06-06 22:23:22 +00:00
Code Activity

fix in gomory cut

Browse source 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-03-04 11:59:35 -08:00
parent 4917475f9e
commit 29b9dfe326
1 changed files with 4 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

5
src/math/lp/gomory.cpp
View file

@ -45,7 +45,8 @@ class create_cut {
const impq & get_value(unsigned j) const { return lia.get_value(j); } const impq & get_value(unsigned j) const { return lia.get_value(j); }
bool is_int(unsigned j) const { return lia.column_is_int(j) || (lia.is_fixed(j) && bool is_int(unsigned j) const { return lia.column_is_int(j) || (lia.is_fixed(j) &&
lia.lra.column_lower_bound(j).is_int()); } lia.lra.column_lower_bound(j).is_int()); }
bool is_real(unsigned j) const { return !is_int(j); } bool is_real(unsigned j) const { return lia.is_real(j) && (! (lia.is_fixed(j) &&
lia.lra.column_lower_bound(j).is_int())); }
bool at_lower(unsigned j) const { return lia.at_lower(j); } bool at_lower(unsigned j) const { return lia.at_lower(j); }
bool at_upper(unsigned j) const { return lia.at_upper(j); } bool at_upper(unsigned j) const { return lia.at_upper(j); }
const impq & lower_bound(unsigned j) const { return lia.lower_bound(j); } const impq & lower_bound(unsigned j) const { return lia.lower_bound(j); }
@ -54,6 +55,8 @@ class create_cut {
constraint_index column_upper_bound_constraint(unsigned j) const { return lia.column_upper_bound_constraint(j); } constraint_index column_upper_bound_constraint(unsigned j) const { return lia.column_upper_bound_constraint(j); }
bool column_is_fixed(unsigned j) const { return lia.lra.column_is_fixed(j); } bool column_is_fixed(unsigned j) const { return lia.lra.column_is_fixed(j); }
void int_case_in_gomory_cut(unsigned j) { void int_case_in_gomory_cut(unsigned j) {
lp_assert(is_int(j) && m_fj.is_pos()); lp_assert(is_int(j) && m_fj.is_pos());
TRACE("gomory_cut_detail", TRACE("gomory_cut_detail",