7 commits

Author	SHA1	Message	Date
Lev Nachmanson	4e74c4cdd4	perf in branching (#4719) ... Signed-off-by: Lev Nachmanson <levnach@hotmail.com>	2020-09-29 22:05:16 -07:00
Lev Nachmanson	25724401cf	Perf branch (#4710) ... * avoid creating rows with all but one fixed columns Signed-off-by: Lev Nachmanson <levnach@hotmail.com> * pb Signed-off-by: Lev Nachmanson <levnach@hotmail.com> * once in a while flip bounds of boxed variables during move_nbasic_to_bounds Signed-off-by: Lev Nachmanson <levnach@hotmail.com> * flip rarely Signed-off-by: Lev Nachmanson <levnach@hotmail.com> * flip rarely Signed-off-by: Lev Nachmanson <levnach@hotmail.com> * flip rarely Signed-off-by: Lev Nachmanson <levnach@hotmail.com> * return an empty model when lar_solver is not ready Signed-off-by: Lev Nachmanson <levnach@hotmail.com> * randomly change bounded base var on demand only Signed-off-by: Lev Nachmanson <levnach@hotmail.com> * randomly change bounded base var on demand only Signed-off-by: Lev Nachmanson <levnach@hotmail.com>	2020-09-25 17:47:29 -07:00
Lev Nachmanson	ba40a5752f	better branching with usage_in_terms() ... Signed-off-by: Lev Nachmanson <levnach@hotmail.com>	2020-04-28 15:27:49 -07:00
Lev Nachmanson	0499b6b64a	some fixes in branching ... Signed-off-by: Lev Nachmanson <levnach@hotmail.com>	2020-04-26 20:35:22 -07:00
Lev Nachmanson	530f77281c	fixes in branching ... Signed-off-by: Lev Nachmanson <levnach@hotmail.com>	2020-04-26 16:13:47 -07:00
Lev Nachmanson	5208b64a6b	expose only necessary methods of lar_solver ... Signed-off-by: Lev Nachmanson <levnach@hotmail.com>	2020-04-16 12:58:39 -07:00
Nikolaj Bjorner	8b9a80e232	separate out int-branch ... Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>	2020-02-08 15:58:06 -08:00