mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-10-31 19:52:29 +00:00
Code Activity

remove redundant function, add checker function to test missed propagations

Browse source
This commit is contained in:
Nikolaj Bjorner 2023-04-25 13:48:33 -07:00
parent e689dea99c
commit 8fb4515872
1 changed files with 24 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

43
src/math/lp/lar_solver.h
View file

@ -161,28 +161,23 @@ class lar_solver : public column_namer {
bool sizes_are_correct() const;
bool implied_bound_is_correctly_explained(implied_bound const & be, const vector<std::pair<mpq, unsigned>> & explanation) const;
template <typename T>
void analyze_new_bounds_on_row_tableau(
unsigned row_index,
lp_bound_propagator<T> & bp ) {
if (A_r().m_rows[row_index].size() > settings().max_row_length_for_bound_propagation
|| row_has_a_big_num(row_index))
return;
bound_analyzer_on_row<row_strip<mpq>, lp_bound_propagator<T>>::analyze_row(A_r().m_rows[row_index],
null_ci,
zero_of_type<numeric_pair<mpq>>(),
row_index,
bp
);
}
void substitute_basis_var_in_terms_for_row(unsigned i);
template <typename T>
void calculate_implied_bounds_for_row(unsigned i, lp_bound_propagator<T> & bp) {
analyze_new_bounds_on_row_tableau(i, bp);
unsigned calculate_implied_bounds_for_row(unsigned row_index, lp_bound_propagator<T> & bp) {
if (A_r().m_rows[row_index].size() > settings().max_row_length_for_bound_propagation || row_has_a_big_num(row_index))
return 0;
return bound_analyzer_on_row<row_strip<mpq>, lp_bound_propagator<T>>::analyze_row(
A_r().m_rows[row_index],
null_ci,
zero_of_type<numeric_pair<mpq>>(),
row_index,
bp);
}
static void clean_popped_elements(unsigned n, u_set& set);
bool maximize_term_on_tableau(const lar_term & term,
impq &term_max);
@ -339,8 +334,9 @@ public:
void mark_rows_for_bound_prop(lpvar j);
template <typename T>
void propagate_bounds_for_touched_rows(lp_bound_propagator<T> & bp) {
unsigned num_prop = 0;
for (unsigned i : m_rows_with_changed_bounds) {
calculate_implied_bounds_for_row(i, bp);
num_prop += calculate_implied_bounds_for_row(i, bp);
if (settings().get_cancel_flag())
return;
}
@ -360,6 +356,15 @@ public:
}
m_rows_with_changed_bounds.clear();
}
template <typename T>
void check_missed_propagations(lp_bound_propagator<T> & bp) {
for (unsigned i = 0; i < A_r().row_count(); i++)
if (!m_rows_with_changed_bounds.contains(i))
if (0 < calculate_implied_bounds_for_row(i, bp)) {
verbose_stream() << i << ": " << get_row(i) << "\n";
}
}
bool is_fixed(column_index const& j) const { return column_is_fixed(j); }
inline column_index to_column_index(unsigned v) const { return column_index(external_to_column_index(v)); }