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port bug fixes from unit prop branch

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2023-09-22 09:45:58 -07:00
parent fba5de3a25
commit eff3f5f65e
2 changed files with 5 additions and 4 deletions
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2
src/math/lp/int_solver.cpp
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@ -31,7 +31,7 @@ namespace lp {
lra.remove_fixed_vars_from_base();
lp_assert(lia.is_feasible());
for (unsigned j : lra.r_basis())
if (!lra.get_value(j).is_int() && lra.column_is_int(j))
if (!lra.get_value(j).is_int() && lra.column_is_int(j) && !lia.is_fixed(j))
patch_basic_column(j);
if (!lia.has_inf_int()) {
lia.settings().stats().m_patches_success++;

7
src/math/lp/lar_constraints.h
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@ -136,9 +136,10 @@ class constraint_set {
}
public:
constraint_set(u_dependency_manager& d, column_namer& cn):
m_dep_manager(d),
m_namer(cn) {}
constraint_set(u_dependency_manager& d, column_namer& cn):
m_namer(cn),
m_dep_manager(d)
{}
~constraint_set() {
for (auto* c : m_constraints)