mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-05-04 06:15:46 +00:00
Code Activity

model based opt dev

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-04-28 09:47:55 -07:00
parent 83d84dcedd
commit 932ef442ae
3 changed files with 239 additions and 133 deletions
Download patch file Download diff file Expand all files Collapse all files

16
src/math/simplex/model_based_opt.h
View file

@ -37,6 +37,8 @@ namespace opt {
strict,
non_strict
};
class model_based_opt {
public:
@ -67,22 +69,20 @@ namespace opt {
vector<var> m_new_vars;
bool invariant();
bool invariant(row const& r);
bool invariant(unsigned index, row const& r);
row& objective() { return m_rows[0]; }
bool find_bound(unsigned x, unsigned& bound_index, unsigned_vector& other, bool is_pos);
bool find_bound(unsigned x, unsigned& bound_index, rational& bound_coeff, unsigned_vector& other, bool is_pos);
rational get_coefficient(unsigned row_id, unsigned var_id);
bool resolve(unsigned row_id1, rational const& a1, unsigned row_id2, unsigned x);
void multiply(rational const& c, unsigned row_id);
void mul_add(unsigned row_id1, rational const& c, unsigned row_id2);
void add(unsigned row_id1, unsigned row_id2);
void set_row(row& r, vector<var> const& coeffs, rational const& c, ineq_type rel);
void set_row(unsigned row_id, vector<var> const& coeffs, rational const& c, ineq_type rel);
public:
@ -112,4 +112,8 @@ namespace opt {
}
std::ostream& operator<<(std::ostream& out, opt::bound_type bt);
std::ostream& operator<<(std::ostream& out, opt::ineq_type ie);
#endif