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109 commits

Author SHA1 Message Date
Murphy Berzish 1f15033ca2
z3str3: remove legacy code (#4215) 
* z3str3: remove legacy fixed-length overlap testing

parameter smt.str.fixed_length_overlap_models has been deprecated

* z3str3: remove legacy length/value testing algorithm and binary search heuristic

the following parameters are deprecated:
smt.str.use_binary_search
smt.str.binary_search_start
smt.str.fixed_length_models (the fixed-length model construction is now always used)

* z3str3: remove legacy regex unroll methods

* z3str3: remove unused methods and member variables
 2020-05-06 13:07:04 -07:00
Nikolaj Bjorner 9c3f0190f4 fix #4069 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-23 20:53:13 -07:00
Nikolaj Bjorner 501aa7927d split into seq_axioms and seq_skolem 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-17 06:14:52 -07:00
Nikolaj Bjorner 835b57b775 fix #3961 fix #3940 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-14 17:33:44 -07:00
Nikolaj Bjorner a7aff1bcf0 fix regression on string ops 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-02 10:03:35 -07:00
Nikolaj Bjorner 57d430b3fd fix #3700 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-04-02 06:38:14 -07:00
Nikolaj Bjorner ab5905cf7f some adjustments for stack use on large strings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-01-12 22:08:24 -08:00
Nikolaj Bjorner 541658fe02 move to abstract symbols 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-01-10 12:14:13 -08:00
Nikolaj Bjorner 489448b869 fix #2762, fix #2750, add iterative unrolling to help on termination on sat instances (to address non-termination in #2759 and #2762) 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-11-30 18:05:24 -08:00
Nikolaj Bjorner a257ec0cc1 build warnings #2748 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-11-28 15:36:54 -08:00
Nikolaj Bjorner 64dd4e1c83 fix #2659 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-10-25 10:42:21 -07:00
Nikolaj Bjorner 4ce6b53d95 fix #2640 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-10-16 20:40:03 -07:00
Nikolaj Bjorner 4101652747 handle case where lower bound is above upper 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-09-20 09:54:18 -07:00
Nikolaj Bjorner cd0cd82eb7 add rewrites for #2575 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-09-20 08:55:53 -07:00
Nikolaj Bjorner 12034df11a add rewrites for #2575 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-09-20 02:16:30 -07:00
Nikolaj Bjorner 584eee2cf4 fixing #2448 and #2445 and #2443 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-08-02 15:06:34 -07:00
Nikolaj Bjorner 335543b374 adding comparison #2360 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-06-28 21:14:58 -07:00
Nikolaj Bjorner b2845d888e add get_lstring per #2286 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-05-22 18:32:57 +04:00
Nikolaj Bjorner 3e059a3a3b one must answer the call of the master of compilers #2258 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-05-07 05:49:16 +02:00
Nikolaj Bjorner 3c8fd83c97 implementing last-index-of #2089 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2019-03-22 12:29:50 -07:00
Nuno Lopes 6a0c409b0f move a few strings instead of copying 2019-02-28 10:53:27 +00:00
Nikolaj Bjorner f56749a241 fix #2041, fix #2043 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-12-16 15:18:49 -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 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 aa723f1eee fix uninitialized variable 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-24 18:13:35 -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 f591e0948a fix #1841 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-22 15:28:33 -08:00
Nikolaj Bjorner 7bc3b4e381 swap order in equality for emptiness check to deal with rewriter 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-22 13:03:55 -08:00
Nikolaj Bjorner aeb4d1864d clean up suffix/prefix rewriting 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-22 11:39:34 -08:00
Nikolaj Bjorner 498fa87993 seq rewriting fixes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-22 10:48:49 -08:00
Nikolaj Bjorner 03bb5a085f fix #1940 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-11-15 09:21:03 -08:00
Murphy Berzish b09035565a canonicalize encoding of string constants/symbols 2018-09-05 19:04:11 -04:00
Nikolaj Bjorner 774fa33bfe fix parameter lookup 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-13 08:49:46 -07:00
Nikolaj Bjorner 4915fb080b fix #1749 by rejecting non-well-founded use of datatype in array 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-12 22:45:52 -07:00
Nikolaj Bjorner a04921dafe fix #1595 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-04-26 08:47:05 +02:00
Nikolaj Bjorner cf2258a536 fix #1594 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-04-26 08:39:35 +02:00
Nikolaj Bjorner aef3de5fca escape ascii above 127, issue #1571 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-04-12 15:05:35 +08:00
Nikolaj Bjorner a4c58ec4c2 fix #1496 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-02-22 08:05:28 +09:00
Bruce Mitchener 76eb7b9ede Use nullptr. 2018-02-12 14:05:55 +07:00
Nikolaj Bjorner 3f7453f5c5 fixing build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-02-07 20:23:31 -08:00
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 b19f94ae5b make include paths uniformly use path relative to src. #534 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-07-31 13:24:11 -07:00
Nikolaj Bjorner d1cfc53495 fix for #1015 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-05-10 19:40:00 -07:00
Murphy Berzish 05958193ab revert change to String sort declaration 2017-04-27 22:30:02 -04:00
Murphy Berzish 46ac718790 theory_str frontend changes 2017-04-26 17:24:05 -04:00
Nikolaj Bjorner 48638c6f1e fix for #975, add mask to ensure character encoding is unique within range of bits used for encoding 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-04-15 09:34:13 +07:00
Murphy Berzish ad0766898c add boolean operators to zstring and fix ostream 2017-03-04 15:20:57 -05:00
Murphy Berzish 0ebd93c8b5 add _re.unroll internal operator to seq_decl_plugin 2017-02-23 20:57:19 -05:00