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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-05-14 10:25:42 -07:00
parent 587750b9a3
commit 118dc0f3b4
5 changed files with 62 additions and 20 deletions
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11
src/math/polysat/fixplex.h
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@ -30,9 +30,11 @@ namespace polysat {
typedef unsigned var_t;
struct fixplex_base {};
template<typename Ext>
class fixplex {
class fixplex : public fixplex_base {
public:
typedef typename Ext::numeral numeral;
typedef typename Ext::scoped_numeral scoped_numeral;
@ -137,7 +139,6 @@ namespace polysat {
void set_bounds(var_t v, numeral const& lo, numeral const& hi);
void unset_bounds(var_t v) { m_vars[v].set_free(); }
var_t get_base_var(row const& r) const { return m_rows[r.id()].m_base; }
numeral const& lo(var_t var) const { return m_vars[var].lo; }
numeral const& hi(var_t var) const { return m_vars[var].hi; }
numeral const& value(var_t var) const { return m_vars[var].m_value; }
@ -149,15 +150,17 @@ namespace polysat {
vector<var_eq> const& var_eqs() const { return m_var_eqs; }
void reset_eqs() { m_var_eqs.reset(); }
lbool make_feasible();
row add_row(var_t base, unsigned num_vars, var_t const* vars, numeral const* coeffs);
void add_row(var_t base, unsigned num_vars, var_t const* vars, numeral const* coeffs);
std::ostream& display(std::ostream& out) const;
std::ostream& display_row(std::ostream& out, row const& r, bool values = true);
void collect_statistics(::statistics & st) const;
row get_infeasible_row();
void del_row(var_t base_var);
private:
std::ostream& display_row(std::ostream& out, row const& r, bool values = true);
var_t get_base_var(row const& r) const { return m_rows[r.id()].m_base; }
void update_value_core(var_t v, numeral const& delta);
void ensure_var(var_t v);