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fill columns to fill in random update as in theory_arith_aux.h

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-04-07 15:21:32 -07:00
parent 0e78f092b5
commit ae8c6acc1a
2 changed files with 45 additions and 5 deletions
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3
src/math/lp/random_updater_def.h
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@ -38,6 +38,7 @@ random_updater::random_updater(
bool random_updater::shift_var(unsigned v) {
SASSERT(!m_lar_solver.column_is_fixed(v));
return m_lar_solver.get_int_solver()->shift_var(v, m_range);
}
@ -81,7 +82,7 @@ void random_updater::add_column_to_sets(unsigned j) {
unsigned row = m_lar_solver.get_core_solver().m_r_heading[j];
for (auto & row_c : m_lar_solver.get_core_solver().m_r_A.m_rows[row]) {
unsigned cj = row_c.var();
if (m_lar_solver.get_core_solver().m_r_heading[cj] < 0) {
if (m_lar_solver.get_core_solver().m_r_heading[cj] < 0 && !m_lar_solver.column_is_fixed(cj)) {
m_var_set.insert(cj);
add_value(m_lar_solver.get_core_solver().m_r_x[cj]);
}