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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

correction in the sign of gomory_cut

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix in the gomory cut sign

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

try using lemmas of cut_solver as cuts

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

add find_cube() proposed by Nikolaj

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

restore m_int_branch_cut_solver to 8

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

accept empty lar_terms in theory_lra and also do not create empty lar_terms/lemmas

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

qflia_tactic

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

call find_feasible solution to recover for a failure in find_cube

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

do not tighten unused terms

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

get rid of inf_int_set

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix a bug with an accidental solution in cube

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

get rid of inf_int_set

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

bug fix with has_int_var() for lar_solver

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>

fix in find_inf_int_base_column

Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2018-03-22 20:35:13 -07:00
parent 2bb94ed4fe
commit 7e82ab595e
13 changed files with 314 additions and 182 deletions
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17
src/util/lp/lp_settings.h
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@ -108,6 +108,8 @@ struct stats {
unsigned m_cut_solver_undef;
unsigned m_gcd_calls;
unsigned m_gcd_conflicts;
unsigned m_cube_calls;
unsigned m_cube_success;
stats() { reset(); }
void reset() { memset(this, 0, sizeof(*this)); }
};
@ -334,13 +336,14 @@ public:
bool use_breakpoints_in_feasibility_search;
unsigned random_next() { return m_rand(); }
void set_random_seed(unsigned s) { m_rand.set_seed(s); }
unsigned max_row_length_for_bound_propagation;
bool backup_costs;
unsigned column_number_threshold_for_using_lu_in_lar_solver;
unsigned m_int_branch_cut_gomory_threshold;
unsigned m_int_branch_cut_solver;
bool m_run_gcd_test;
unsigned m_cut_solver_cycle_on_var;
unsigned max_row_length_for_bound_propagation;
bool backup_costs;
unsigned column_number_threshold_for_using_lu_in_lar_solver;
unsigned m_int_branch_cut_gomory_threshold;
unsigned m_int_branch_cut_solver;
unsigned m_int_branch_find_cube;
bool m_run_gcd_test;
unsigned m_cut_solver_cycle_on_var;
}; // end of lp_settings class