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Author	SHA1	Message	Date
Jakob Rath	0d56edb65c	Fix missing boolean propagation after boolean conflict ... Usually in SAT solving, the conflict clause has at least two false literals at the max level (otherwise, the last literal would have been propagated at an earlier level). But here we are adding clauses on demand; so after backtracking we may have the case that the conflict clause has exactly one undefined literal that must be propagated explicitly.	2023-02-01 15:02:56 +01:00
Clemens Eisenhofer	783bd60598	Merge branch 'polysat' of https://github.com/Z3Prover/z3 into polysat	2023-02-01 11:28:15 +01:00
Clemens Eisenhofer	8db575ea3b	Division monotonicity	2023-02-01 11:27:46 +01:00
Jakob Rath	975fb25221	Fix to bench15 bug was unsound	2023-02-01 11:17:29 +01:00
Jakob Rath	f0625b604a	Promote assertions to release mode	2023-02-01 11:12:13 +01:00
Jakob Rath	576e0b70b2	stub for conflict::find_deps	2023-02-01 10:53:49 +01:00
Jakob Rath	1bb68a4fc1	track dependency of base-level conflict	2023-02-01 10:47:26 +01:00
Jakob Rath	3c822117d1	assert before deref	2023-02-01 10:41:02 +01:00
Jakob Rath	9314ad3808	minor changes to bounds propagation	2023-02-01 10:36:49 +01:00
Clemens Eisenhofer	63f7001117	Justify shift-premis in variable_elimination	2023-01-31 15:50:42 +01:00
Jakob Rath	9916a76543	try_eval constraints when adding clause ... (fix assertion in bench15)	2023-01-31 15:15:51 +01:00
Clemens Eisenhofer	e8163b1769	Removed wrong assertion	2023-01-27 08:32:44 +01:00
Jakob Rath	88d11c9381	skip always-true constraints	2023-01-25 12:34:01 +01:00
Jakob Rath	223f9fffed	avoid unused variable warning	2023-01-25 12:32:04 +01:00
Jakob Rath	f91bb12f0e	Add warning to not trust the unsat cores yet	2023-01-25 12:30:27 +01:00
Jakob Rath	4dc05447ad	verify model also in release mode	2023-01-25 11:42:34 +01:00
Jakob Rath	b460150f98	tried logic ALL for univariate solver ... Allows us to solve bench25 but some others turn into unknown	2023-01-25 11:42:02 +01:00
Jakob Rath	7fbf27309b	rename	2023-01-25 11:42:02 +01:00
Nikolaj Bjorner	cf1ce4cea2	promote assertion to verify so it triggers in release mode, triggers for bench15 ... Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>	2023-01-24 20:15:40 -08:00
Jakob Rath	a2ff185187	Put (arbitrary) bound on number of refinements	2023-01-23 16:33:07 +01:00
Jakob Rath	3dc8ef6337	parity edge case	2023-01-23 15:07:35 +01:00
Jakob Rath	07de75cd12	fix and-propagation	2023-01-23 15:04:13 +01:00
Jakob Rath	58ab342029	Add missing and-lemma; fix condition on existing one	2023-01-23 14:56:46 +01:00
Jakob Rath	46147c2fc3	Fix unsoundness in ule_constraint lemma	2023-01-23 13:59:00 +01:00
Jakob Rath	c6cd35508b	fix	2023-01-19 19:09:46 +01:00
Jakob Rath	2056d392ba	Detect gap in has_max_forbidden	2023-01-19 13:48:06 +01:00
Jakob Rath	d1ef8029a9	simpler condition	2023-01-19 13:43:50 +01:00
Jakob Rath	f9f61249e1	debug output	2023-01-19 13:42:33 +01:00
Jakob Rath	a7ad1f0bfb	fix build	2023-01-18 19:29:22 +01:00
Jakob Rath	85a8d8b005	debug output	2023-01-18 18:46:40 +01:00
Jakob Rath	905144cdbb	assert	2023-01-18 18:43:41 +01:00
Jakob Rath	8385452d91	simplify interval	2023-01-18 18:40:48 +01:00
Jakob Rath	c62ba26cf4	simplify	2023-01-18 18:38:44 +01:00
Jakob Rath	3e42dbe591	Fix assertions	2023-01-18 18:30:25 +01:00
Jakob Rath	b23c1b4016	Update viable tests	2023-01-18 18:23:47 +01:00
Jakob Rath	c954e82503	assertion should hold now after recent fix	2023-01-16 16:51:16 +01:00
Jakob Rath	015fcb457c	avoid warnings	2023-01-16 16:50:36 +01:00
Jakob Rath	b6f8538d20	Update parity lemmas ... p != 0 ==> odd(r) ... added premise p != 0 parity(p) < k ==> r <= 2^(N - k) - 1 ... do this also in the other branch (otherwise we hit the UNREACHABLE in bench3)	2023-01-16 16:46:12 +01:00
Jakob Rath	26e7d0d35a	We need to use expr_ref when storing expressions across add calls ... Without this, bench3 created a constraint 2^parity == x * parity which should have been 2^parity == x * x_inv.	2023-01-16 15:41:04 +01:00
Clemens Eisenhofer	b33911de13	Added missing minimality lemma for pseudo_inverse	2023-01-15 12:11:15 +01:00
Jakob Rath	caf624589e	Accelerate interval widening in refine_equal_lin	2023-01-13 15:41:28 +01:00
Jakob Rath	057e115bbc	Update op_constraint simplifications	2023-01-12 13:31:16 +01:00
Jakob Rath	0a2c69332d	disable try_add_overflow_bound, add note on possible rewrite	2023-01-11 13:39:41 +01:00
Jakob Rath	fa036ae486	track clause name for debugging	2023-01-11 10:50:14 +01:00
Jakob Rath	1d349fb0e6	compile	2023-01-11 10:50:14 +01:00
Clemens Eisenhofer	7aeabe39a3	Removed remaining debug output	2023-01-11 10:32:38 +01:00
Clemens Eisenhofer	2581754c3e	Forward propagation for op_constraints + optimization for left/right shift	2023-01-11 10:29:26 +01:00
Jakob Rath	1d0ad1ccc0	fix build (add conversion operator)	2023-01-10 17:18:56 +01:00
Jakob Rath	0c799524e8	try splitting x-intervals	2023-01-10 16:25:28 +01:00
Jakob Rath	49848a4298	extract function update_bounds_for_xs	2023-01-10 15:16:24 +01:00