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316 commits

Author SHA1 Message Date
Nikolaj Bjorner 0fd4c4fb06 tidy 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-02-09 08:24:14 -08:00
Nikolaj Bjorner d2d42f9810 fix #2127 fix #2128 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-02-09 08:23:22 -08:00
Nikolaj Bjorner 94dae2da3a fix fourth bug produced by repros by Mark Dunlop 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-01-27 18:11:18 -08:00
Nikolaj Bjorner 1297eeb817 fix #2104 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-01-26 11:55:32 -08:00
Nikolaj Bjorner cf6119cdfd fix #2102 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-01-25 21:02:25 -08:00
Nikolaj Bjorner 434eb25004 add useful div lemma for case #2079 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-01-10 17:20:01 -08:00
Nikolaj Bjorner b63a0e31d3 fix regression from #2061 breaking #2074 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-01-07 16:30:04 -08:00
Nikolaj Bjorner 14f3ff0b63 Merge branch 'master' of https://github.com/z3prover/z3 2019-01-07 09:00:21 -08:00
Nikolaj Bjorner cec34c745a defer blocking propagation until all properties of literal have been axiomatized. Deals with seq part of #2071 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-01-07 09:00:11 -08:00
Nikolaj Bjorner 6113149138 fix #2060. Code comment was right, code wasn't. Code comment and code could also be tuned 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-01-06 20:20:34 -08:00
Nikolaj Bjorner a87f7a14d3 ever so gentle slap over the fingers for not using real regular expressions, #2058 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-01-06 13:46:04 -08:00
Nikolaj Bjorner 0d400a5ad6 fix bit2bool bug reported by Jianying Li 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-01-04 07:46:53 -08:00
Nikolaj Bjorner b3d0ed6143 fix #2035 regression. correct axiom is |extract(s,i,l)| <= l or l < 0, but it is subsumed by encoding of extract, so new axiom is not useful 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-12-11 20:27:28 -08:00
Nikolaj Bjorner bfcea7a819 perf improvements by reordering variable branching #1676 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-12-11 09:38:36 -08:00
Nikolaj Bjorner b40c2b2926 fix #876 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-12-10 14:11:00 -08:00
Nikolaj Bjorner 68ace83893 remove enable trace 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-12-10 07:34:56 -08:00
Nikolaj Bjorner f2a7bcaf5d remove prints 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-12-09 14:38:45 -08:00
Nikolaj Bjorner 604e5dd0bb fixing #2030 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-12-09 12:56:21 -08:00
Nikolaj Bjorner 559f57470e fix #2031 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-12-09 08:21:48 +01:00
Nikolaj Bjorner 38b5e6de56 fix #2019 - insufficient axioms for special cases 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-12-08 13:57:35 +01:00
Nikolaj Bjorner a20e68facc throttel extract/ite rewriting to avoid perf-bug exposed in example from Lucas Cordeiro and Alessandro Trindade 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-12-07 17:54:49 +00:00
Nikolaj Bjorner 9635ddd8fc fix #2018 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-12-05 00:54:10 -08:00
Nikolaj Bjorner 9e5aaf074e perf improvements for #1979 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-12-04 10:13:55 -08:00
Nikolaj Bjorner ea0d253308 fix const-char test 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-12-03 11:56:20 -08:00
Nikolaj Bjorner 2aa7ccc4a9 hide bit-vector dependencies under seq_util 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-12-03 08:45:17 -08:00
Nikolaj Bjorner 3db73e442c reset max unfolding literal on backtrack 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-29 21:04:43 -08:00
Bruce Mitchener 6567698199 Fix initialization order on theory_seq. 2018-11-30 08:10:49 +07:00
Nikolaj Bjorner 67f22d8d65 improving performance for length constraints 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-29 11:32:52 -08:00
Nikolaj Bjorner e96f9de70b perf #1988 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-29 06:02:32 -08:00
Nikolaj Bjorner 5df29daa35
Merge pull request #1972 from waywardmonkeys/use-vector-empty 
Prefer using empty rather than size comparisons.
 2018-11-27 10:39:34 -08:00
Nikolaj Bjorner 2b34e4f738 fix #1968 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-27 10:36:03 -08:00
Bruce Mitchener e570940662 Prefer using empty rather than size comparisons. 2018-11-27 21:42:04 +07:00
Nikolaj Bjorner 503bedbc7a fix #1967: 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-26 21:12:47 -08:00
Nikolaj Bjorner 88fd088a09 conditional flattening 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-25 14:15:10 -08:00
Nikolaj Bjorner 16be5b0e7d fix #1816 - m_parent_selects gets updated while accessing an interator, fix is to rely on the size of the vector for iteration 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-25 14:04:17 -08:00
Nikolaj Bjorner 32df9b1155 mac build errors 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-24 17:34:53 -08:00
Nikolaj Bjorner 96043216e5 fix unsound unfolding 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-24 17:25:56 -08:00
Nikolaj Bjorner 6ddbc9cd38 overhaul of regular expression membership solving. Use iterative deepening and propagation, coallesce intersections 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-24 15:26:39 -08:00
Nikolaj Bjorner d61d9d4ce3 remove reject states 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-24 11:06:51 -08:00
Nikolaj Bjorner 33eb82c25a remove prefix2prefix, fix #1566 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-23 23:36:47 -08:00
Nikolaj Bjorner 069949a576 fix model construction for semantics of itos 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-23 22:30:13 -08:00
Nikolaj Bjorner 20a28af225 fix stoi/itos axiom replay 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-23 21:42:48 -08:00
Nikolaj Bjorner d55af41955 constrain lengths 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-23 19:54:34 -08:00
Nikolaj Bjorner 88fb826a03 overhaul stoi and itos to fix #1957 and related 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-23 18:50:20 -08:00
Nikolaj Bjorner 801026937d fix #1846 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-23 13:49:09 -08:00
Nikolaj Bjorner 8d940f64b8 fix build regression 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-23 10:57:07 -08:00
Nikolaj Bjorner f591e0948a fix #1841 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-22 15:28:33 -08:00
Nikolaj Bjorner 90070fda95 fix #1959 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-20 20:17:09 -08:00
Nikolaj Bjorner c95dbb47a3 fix #1958 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-20 16:43:37 -08:00
Florian Pigorsch 326bf401b9 Fix some spelling errors (mostly in comments). 2018-10-20 17:07:41 +02:00
Bruce Mitchener 7bc283b84e Avoid unnecessary copies in for-range loops. 2018-10-02 10:38:41 +07:00
Bruce Mitchener cdfc19a885 Use nullptr. 2018-10-02 09:11:19 +07:00
Nikolaj Bjorner 286126dde9 fix #1828, add self-contained utility to extract arithmetical values for use in theory_seq and theory_str and other theories that access current values assigned to numeric variables 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-09-16 13:31:37 -07:00
Nikolaj Bjorner 13390e2c3a fix #681, unsound propagation of binary equalities. Clean up memory leaks on exit 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-29 12:08:59 -07:00
Nikolaj Bjorner 5509bf248a coallesce lambda/quant tracing 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-29 08:02:56 -07:00
Nikolaj Bjorner 64e570f159 fix #1766 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-29 02:22:28 -07:00
Nikolaj Bjorner 1cb3f7c792 fixing #1520 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-28 18:03:13 -07:00
Nikolaj Bjorner 60bb02b709 updates 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-26 15:31:49 +01:00
Nikolaj Bjorner c7e1d59b19 Merge branch 'master' of https://github.com/z3prover/z3 into lev 2018-07-03 13:42:50 -07:00
Nikolaj Bjorner e37954d87b simplify code fix for #1725 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-03 09:16:52 -07:00
Nikolaj Bjorner ec6260342b fix #1725 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-03 09:13:02 -07:00
Nikolaj Bjorner 03ed33ac02 merge with master 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-02 15:31:26 -07:00
Nikolaj Bjorner e13b61eae8 work around regression with use of mk_app_core, returning BR_FAILED if nothing is rewritten 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-02 11:10:37 -07:00
Nikolaj Bjorner 05738702d6 merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-02 08:10:47 -07:00
Nikolaj Bjorner b38abf64d7 use expr_ref on mk_concat 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-01 19:30:46 -07:00
Nikolaj Bjorner fad1e611aa build warnings, updates to reduce-invertible, change is_algebraic tester to use int return type 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-01 12:34:55 -07:00
Nikolaj Bjorner 5a2a8d7d5c
Merge pull request #1715 from levnach/master 
merge lar_solver/int_solver
 2018-07-01 12:20:02 -07:00
Thai Trinh cd62017afd fixed failures with regression tests 2018-06-30 15:52:20 +08:00
Lev Nachmanson da44ad7e6f added stubs for get_lower/get_upper required by theory_seq 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
 2018-06-29 13:43:23 -07:00
Thai Trinh 1892d31794 add parameter to enable splitting guided by length constraints 2018-06-27 18:10:40 +08:00
Thai Trinh aacb7289be merge with Z3Prover/master 2018-06-25 19:44:46 +08:00
Nikolaj Bjorner eeba30a277 fix #1677 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-19 10:56:45 -07:00
Nikolaj Bjorner b4aac1ab55 revert fix to #1677 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-18 21:23:13 -07:00
Nikolaj Bjorner 6a0b70ee5c selective expansion of strings for canonizer to fix #1690 regression 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-18 20:42:53 -07:00
Nikolaj Bjorner 4634d1daed selective expansion of strings for canonizer to fix #1690 regression 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-18 20:37:39 -07:00
Nikolaj Bjorner c3b27903f8 fix #1677 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-06-18 11:22:01 -07:00
Nikolaj Bjorner 1e143971c3 tune for unit test, delay initialize re-solver 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-05-13 11:49:33 -07:00
Nikolaj Bjorner b5f067bec5 fix #1592 #1587 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-04-25 11:18:24 +02:00
Nikolaj Bjorner 19bb883263 fix #1581 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-04-23 12:12:39 +02:00
Nikolaj Bjorner 279f1986a6 fix #1575, fix #1585 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-04-23 07:11:15 +02:00
Nikolaj Bjorner 72f8e408fc fix #1538 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-03-17 11:25:07 -07:00
Nikolaj Bjorner eb1122c5cb delay updating parameters to ensure rewriting in asserted_formulas is applied using configuration overrides. Fixes build regression for tree_interpolation documentation test 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-03-04 21:57:08 -08:00
Nikolaj Bjorner ce1b135ec3 address accessor inconsistencies between - and from #1506 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-02-26 14:57:17 +09:00
Nikolaj Bjorner 7b68be75c9 fixes to #1500 and #1457 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-02-25 13:11:20 +09:00
Bruce Mitchener 76eb7b9ede Use nullptr. 2018-02-12 14:05:55 +07:00
Bruce Mitchener 7167fda1dc Use override rather than virtual. 2018-02-10 09:56:33 +07:00
Nikolaj Bjorner 61934d8106 align semantics of re.allchar with string proposal. #1475 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-02-07 20:08:15 -08:00
Nikolaj Bjorner c1c1b7378c removing axiom exposing unsoundness, replace by weaker axiom 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-01-01 19:44:16 -08:00
Nikolaj Bjorner f0a30ded7d add shorthand for translating models #1407 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-01-01 19:25:09 -08:00
Thai Trinh 07afce6a64 pass vectors by reference 2017-12-16 20:44:07 +08:00
Thai Trinh fe503d95ec simplify code 2017-12-15 20:01:03 +08:00
Thai Trinh c07a63cf8e coalesce seq.unit into string in mk_skolem 2017-12-12 05:00:34 +08:00
Thai Trinh 8bf4a15c27 update "seq.align" skolem function 2017-12-09 00:47:48 +08:00
Thai Trinh a2641909d0 initialize pointers 2017-12-08 19:40:20 +08:00
Thai Trinh b819b368f1 minor 2017-12-08 19:29:07 +08:00
Thai Trinh b8ce5509b0 change to "auto" 2017-12-08 19:16:28 +08:00
Thai Trinh c33dfc80e0 Merge branch 'master' of https://github.com/Z3Prover/z3 into Z3Prover-master 
Conflicts:
	src/smt/theory_seq.cpp
 2017-12-08 19:02:24 +08:00
Nikolaj Bjorner faebbc5384 add shortcuts for concatenation and equality propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-12-08 16:17:04 +05:30
Thai Trinh 3a5c30bd9b use obj_ref_map 2017-12-08 18:36:20 +08:00
Thai Trinh 6253faece7 fixed redundant check 2017-12-08 17:20:30 +08:00