14 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	6a678fd5be	rename in lar_solver and memory corruption bug in cheap_eq ... Signed-off-by: Lev Nachmanson <levnach@hotmail.com>	2020-06-12 22:11:11 -07:00
Lev Nachmanson	af2f74c05f	smarter explanation.h (#4385) ... * smarter explanation.h Signed-off-by: Lev Nachmanson <levnach@hotmail.com> * clean explanation API Signed-off-by: Lev Nachmanson <levnach@hotmail.com> * suppress warnings Signed-off-by: Lev Nachmanson <levnach@hotmail.com> * disable the warnings Signed-off-by: Lev Nachmanson <levnach@hotmail.com>	2020-05-19 12:38:44 -07:00
Lev Nachmanson	35e3df49e2	cosmitic changes in int_branch.cpp ... Signed-off-by: Lev Nachmanson <levnach@hotmail.com>	2020-04-28 15:27:49 -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	3bbf1474f3	na ... 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	080dbb13b0	tv alignment, code review comments ... Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>	2020-04-05 03:35:19 -07:00
Lev Nachmanson	ab92c20106	add option branch_flip to lp_settings ... Signed-off-by: Lev Nachmanson <levnach@hotmail.com>	2020-03-25 19:43:55 -07:00
Nikolaj Bjorner	7ec02fc11f	na ... Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>	2020-02-08 16:00:13 -08:00
Nikolaj Bjorner	8b9a80e232	separate out int-branch ... Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>	2020-02-08 15:58:06 -08:00