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fixes the +- bug in gomory cut

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Signed-off-by: Lev <levnach@hotmail.com>
This commit is contained in:
Lev 2018-09-18 14:42:32 -07:00
parent b940b7873b
commit 041458f97a
1 changed files with 1 additions and 1 deletions
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2
src/util/lp/gomory.cpp
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@ -71,7 +71,7 @@ class gomory::imp {
else {
lp_assert(at_upper(j));
// the upper terms are inverted: therefore we have the minus
new_a = - (fj < f0? fj / f0 : (- one_minus_fj / one_minus_f0));
new_a = fj < f0? (- fj / f0 ) : (one_minus_fj / one_minus_f0);
m_k.addmul(new_a, upper_bound(j).x);
m_ex.push_justification(column_upper_bound_constraint(j), new_a);
}