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always call find_feasible_solution in move_nbasic_columns_to_bounds()

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-04-27 15:29:09 -07:00
parent ba40a5752f
commit f8037ffda4
2 changed files with 2 additions and 8 deletions
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2
src/math/lp/int_cube.cpp
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@ -35,6 +35,7 @@ namespace lp {
lra.push();
if (!tighten_terms_for_cube()) {
lra.pop();
lra.set_status(lp_status::OPTIMAL);
return lia_move::undef;
}
@ -42,7 +43,6 @@ namespace lp {
if (st != lp_status::FEASIBLE && st != lp_status::OPTIMAL) {
TRACE("cube", tout << "cannot find a feasiblie solution";);
lra.pop();
lra.set_status(lp_status::OPTIMAL);
lra.move_non_basic_columns_to_bounds();
// it can happen that we found an integer solution here
return !lra.r_basis_has_inf_int()? lia_move::sat: lia_move::undef;