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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-04-01 03:42:13 -07:00
parent d8e00bc02e
commit cc394f0fe9
5 changed files with 25 additions and 21 deletions
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11
src/math/lp/lar_solver.cpp
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@ -2395,9 +2395,7 @@ bool lar_solver::inside_bounds(lpvar j, const impq& val) const {
bool lar_solver::try_to_patch(lpvar j, const mpq& val, const std::function<bool (lpvar)>& blocker, const std::function<void (lpvar)>& report_change) {
if (is_base(j)) {
bool r = remove_from_basis(j);
SASSERT(r);
(void)r;
VERIFY(remove_from_basis(j));
}
impq ival(val);
if (!inside_bounds(j, ival))
@ -2409,10 +2407,10 @@ bool lar_solver::try_to_patch(lpvar j, const mpq& val, const std::function<bool
const mpq & a = c.coeff();
unsigned rj = m_mpq_lar_core_solver.m_r_basis[row_index];
impq rj_new_val = a * delta + get_column_value(rj);
if (column_is_int(rj) && ! rj_new_val.is_int())
return false;
if (column_is_int(rj) && !rj_new_val.is_int())
return false;
if (!inside_bounds(rj, rj_new_val) || blocker(rj))
return false;
return false;
}
set_column_value(j, ival);
@ -2423,6 +2421,7 @@ bool lar_solver::try_to_patch(lpvar j, const mpq& val, const std::function<bool
m_mpq_lar_core_solver.m_r_solver.add_delta_to_x(rj, a * delta);
report_change(rj);
}
return true;
}