152 commits

Author	SHA1	Message	Date
Nikolaj Bjorner	9275930f50	fix bug in add-overflow propagation, move to use viable to mind for bounds ... Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>	2022-12-23 13:38:51 -08:00
Nikolaj Bjorner	9fefa0040f	added updated bounds propagation ... Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>	2022-12-23 12:47:17 -08:00
Jakob Rath	21ea05b31c	Weaken evaluation for new constraints in viable lemma	2022-12-22 16:24:27 +01:00
Jakob Rath	d51031f19b	debug	2022-12-21 16:05:27 +01:00
Jakob Rath	109ab0be40	Detect more equations in refine_equal_lin	2022-12-21 12:21:22 +01:00
Nikolaj Bjorner	ca855fbad3	redoing parity lemmas ... Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>	2022-12-20 15:46:25 -08:00
Nikolaj Bjorner	a8d401864b	review ... Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>	2022-12-20 12:46:15 -08:00
Jakob Rath	e5b142b265	Rotate first entry for refinement	2022-12-20 09:32:27 +01:00
Jakob Rath	86a36a524a	Fix unsoundness in viable fallback ... (the src constraint of forbidden intervals is not necessarily univariate)	2022-12-19 15:37:49 +01:00
Jakob Rath	59592754d8	minor univariate tweak	2022-12-19 14:07:57 +01:00
Nikolaj Bjorner	4e8bd4425f	add find_two ... Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>	2022-12-17 19:41:09 -08:00
Jakob Rath	06e6f27614	refactor	2022-12-16 14:22:50 +01:00
Jakob Rath	9f05f645c1	update types and docs	2022-12-16 13:16:55 +01:00
Jakob Rath	c54c564019	convert to loop	2022-12-16 13:11:20 +01:00
Jakob Rath	e23774a746	reorder definitions	2022-12-16 13:06:16 +01:00
Jakob Rath	afde0e993c	Add bitblasting fallback to viable::query ... (integration between conflict/viable is still messy)	2022-12-16 13:02:54 +01:00
Jakob Rath	44cb528300	Extract usolver	2022-12-16 10:46:57 +01:00
Jakob Rath	5de0007157	very basic refinement loop breaking	2022-12-15 13:39:48 +01:00
Jakob Rath	3d06a90e7f	track refinement source	2022-12-15 13:08:13 +01:00
Jakob Rath	eda6534453	more readable intervals	2022-12-12 16:41:18 +01:00
Nikolaj Bjorner	5a27ae6b53	disable tangent lemma, which appears to be counter-productive ... Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>	2022-12-11 12:56:21 -08:00
Nikolaj Bjorner	d092523733	bugfixes to try_factor_equality ... Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>	2022-12-10 10:51:21 -08:00
Jakob Rath	85715eb164	Update use of insert_eval and lemma scores to support propagation	2022-12-07 16:08:24 +01:00
Jakob Rath	fdca0cd86f	assign_verify: separate lemma production and activation	2022-11-30 15:00:58 +01:00
Jakob Rath	b4b94c954b	Try to produce an op_constraint lemma before invoking the fallback solver	2022-11-30 12:13:47 +01:00
Jakob Rath	4aa04fa475	Lemma names	2022-11-28 19:13:38 +01:00
Jakob Rath	c1f9a26f09	disable assertion for now	2022-11-28 18:15:24 +01:00
Jakob Rath	a3767b177c	comment	2022-11-28 18:11:51 +01:00
Jakob Rath	a144a09ede	Propagation must be justified by a prefix of Gamma	2022-11-22 13:42:31 +01:00
Jakob Rath	33ea8d6e57	viable conflict also depends on vars	2022-11-22 13:40:29 +01:00
Jakob Rath	dbe814d568	Add forbidden interval lemma separately	2022-11-17 15:00:16 +01:00
Jakob Rath	66469bb678	Don't leave propagation loop too early (cause of unsoundness in bench0)	2022-10-12 13:20:34 +02:00
Jakob Rath	54ed6d4413	Don't cut off output arbitrarily	2022-10-07 17:49:03 +02:00
Jakob Rath	bef1be8cb5	should not happen anymore	2022-10-07 10:11:00 +02:00
Jakob Rath	f184545aca	Debug dlist insertion ... Found because of assertion failure in test_polysat::test_fixed_point_arith_div_mul_inverse()	2022-10-05 17:24:28 +02:00
Jakob Rath	dc9373dcbd	Change old solver::propagate method	2022-10-04 17:09:09 +02:00
Jakob Rath	811843cf45	Fix interval check	2022-10-03 15:35:07 +02:00
Jakob Rath	6caa3ba1b7	Skip redundant intervals in viable::resolve (disabled for now)	2022-10-03 11:03:05 +02:00
Jakob Rath	3c60c418e7	fix assertion	2022-09-23 16:15:38 +02:00
Jakob Rath	6abe0c9be8	set, lemma, minor	2022-09-21 16:29:36 +02:00
Jakob Rath	b43971bb4a	Connect conflict2	2022-09-21 12:14:44 +02:00
Nikolaj Bjorner	48d5a98edc	meeting notes ... Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>	2022-09-19 09:10:11 -07:00
Jakob Rath	a416e16566	conflict2	2022-09-19 16:01:45 +02:00
Jakob Rath	c1e2ea80f5	make explicit that we compare the concrete values	2022-08-22 14:17:47 +02:00
Jakob Rath	a76f977f85	Change univariate fallback solver to one-shot mode for now	2022-08-02 12:42:34 +02:00
Jakob Rath	0fb8c72f50	print more information	2022-06-29 14:26:25 +02:00
Jakob Rath	be488f75ab	Add some fi info	2022-04-13 09:34:59 +02:00
Jakob Rath	9fa5096776	conflict logging	2022-04-12 16:06:20 +02:00
Jakob Rath	d41d3fa6ea	fix some bugs	2022-03-18 16:05:51 +01:00
Jakob Rath	fd353bff17	unsat core	2022-03-18 15:49:44 +01:00