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fix a bug in the lar_solver::m_status update during push/pop

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Signed-off-by: Lev Nachmanson <levnach@microsoft.com>
This commit is contained in:
Lev Nachmanson 2017-07-10 16:34:23 -07:00
parent 581098299b
commit 2fe846d9fc
19 changed files with 212 additions and 190 deletions
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13
src/util/lp/lar_solver.h
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@ -48,7 +48,7 @@ class lar_solver : public column_namer {
};
//////////////////// fields //////////////////////////
lp_settings m_settings;
stacked_value<lp_status> m_status;
lp_status m_status;
stacked_value<simplex_strategy_enum> m_simplex_strategy;
std::unordered_map<unsigned, ext_var_info> m_ext_vars_to_columns;
vector<unsigned> m_columns_to_ext_vars_or_term_indices;
@ -222,7 +222,7 @@ public:
vector<unsigned> get_list_of_all_var_indices() const;
void push();
static void clean_large_elements_after_pop(unsigned n, int_set& set);
static void clean_popped_elements(unsigned n, int_set& set);
static void shrink_inf_set_after_pop(unsigned n, int_set & set);
@ -447,5 +447,14 @@ public:
}
bool bound_is_integer_if_needed(unsigned j, const mpq & right_side) const;
linear_combination_iterator<mpq> * get_iterator_on_row(unsigned i) {
return m_mpq_lar_core_solver.m_r_solver.get_iterator_on_row(i);
}
unsigned get_base_column_in_row(unsigned row_index) const {
return m_mpq_lar_core_solver.m_r_solver.get_base_column_in_row(row_index);
}
};
}