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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-05-15 10:12:11 -07:00
parent 683ce27c8f
commit 88bbe9d54e
6 changed files with 164 additions and 54 deletions
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9
src/math/polysat/fixplex.h
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@ -32,12 +32,14 @@ namespace polysat {
typedef unsigned var_t;
struct fixplex_base {
virtual ~fixplex_base() {}
virtual lbool make_feasible() = 0;
virtual void add_row(var_t base, unsigned num_vars, var_t const* vars, rational const* coeffs) = 0;
virtual void del_row(var_t base_var) = 0;
virtual std::ostream& display(std::ostream& out) const = 0;
virtual void collect_statistics(::statistics & st) const = 0;
virtual void set_bounds(var_t v, rational const& lo, rational const& hi) = 0;
virtual void set_value(var_t v, rational const& val) = 0;
virtual void restore_bound() = 0;
};
@ -111,8 +113,8 @@ namespace polysat {
struct stashed_bound : mod_interval<numeral> {
var_t m_var;
stashed_bound(var_t v, numeral const& lo, numeral const& hi):
mod_interval<numeral>(lo, hi),
stashed_bound(var_t v, mod_interval<numeral> const& i):
mod_interval<numeral>(i),
m_var(v)
{}
};
@ -150,7 +152,7 @@ namespace polysat {
M(m),
m_to_patch(1024) {}
~fixplex();
~fixplex() override;
lbool make_feasible() override;
void add_row(var_t base, unsigned num_vars, var_t const* vars, rational const* coeffs) override;
@ -158,6 +160,7 @@ namespace polysat {
void collect_statistics(::statistics & st) const override;
void del_row(var_t base_var) override;
void set_bounds(var_t v, rational const& lo, rational const& hi) override;
void set_value(var_t v, rational const& val) override;
void restore_bound() override;
void set_bounds(var_t v, numeral const& lo, numeral const& hi);