mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-28 11:25:51 +00:00
Code Activity

round the bound for columns and terms when it can be deduced that they are integral

Browse source 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-03-07 13:57:08 -08:00
parent b403b96d38
commit 6ea0bcb454
4 changed files with 43 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

4
src/math/lp/hnf_cutter.cpp
View file

@ -50,7 +50,7 @@ namespace lp {
m_constraints_for_explanation.push_back(ci);
for (const auto &p : *t) {
m_var_register.add_var(p.var());
m_var_register.add_var(p.var(), true); // hnf only deals with integral variables for now
mpq t = abs(ceil(p.coeff()));
if (t > m_abs_max)
m_abs_max = t;
@ -63,7 +63,7 @@ namespace lp {
void hnf_cutter::initialize_row(unsigned i) {
mpq sign = m_terms_upper[i]? one_of_type<mpq>(): - one_of_type<mpq>();
m_A.init_row_from_container(i, * m_terms[i], [this](unsigned j) { return m_var_register.add_var(j);}, sign);
m_A.init_row_from_container(i, * m_terms[i], [this](unsigned j) { return m_var_register.add_var(j, true);}, sign);// hnf only deals with integral variables for now
}
void hnf_cutter::init_matrix_A() {