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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-04-27 22:52:59 -07:00
parent 9e505d60f0
commit efbb382646
4 changed files with 64 additions and 49 deletions
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15
src/math/polysat/fixplex.h
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@ -68,6 +68,12 @@ namespace polysat {
{}
};
struct row_info {
var_t m_base;
numeral m_value;
numeral m_base_coeff;
};
static const var_t null_var = 0;
reslimit& m_limit;
mutable manager m;
@ -75,7 +81,7 @@ namespace polysat {
unsigned m_max_iterations;
var_heap m_to_patch;
vector<var_info> m_vars;
svector<var_t> m_row2base;
vector<row_info> m_rows;
bool m_bland;
unsigned m_blands_rule_threshold;
random_gen m_random;
@ -99,7 +105,7 @@ namespace polysat {
typedef typename matrix::row_iterator row_iterator;
typedef typename matrix::col_iterator col_iterator;
var_t get_base_var(row const& r) const { return m_row2base[r.id()]; }
var_t get_base_var(row const& r) const { return m_rows[r.id()].m_base; }
numeral const& get_lo(var_t var) const { return m_vars[var].m_lo; }
numeral const& get_hi(var_t var) const { return m_vars[var].m_hi; }
void set_max_iterations(unsigned n) { m_max_iterations = n; }
@ -130,6 +136,8 @@ namespace polysat {
void gauss_jordan();
void make_basic(var_t v, row const& r);
void update_value_core(var_t v, numeral const& delta);
// TBD:
void del_row(row const& r) {}
@ -140,8 +148,7 @@ namespace polysat {
void check_blands_rule(var_t v, unsigned& num_repeated) {}
bool make_var_feasible(var_t x_i) { return false; }
void update_and_pivot(var_t x_i, var_t x_j, numeral const& a_ij, numeral const& new_value) {}
void update_value(var_t v, numeral const& delta) {}
void update_value_core(var_t v, numeral const& delta) {}
void update_value(var_t v, numeral const& delta);
void pivot(var_t x_i, var_t x_j, numeral a_ij);
void move_to_bound(var_t x, bool to_lower) {}
var_t select_pivot(var_t x_i, bool is_below, scoped_numeral& out_a_ij) { throw nullptr; }