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Author SHA1 Message Date
Nuno Lopes 0445d6f264 FPA->BV fix unused vars 2022-11-20 19:03:32 +00:00
Nikolaj Bjorner b9f34286a7 generalize macro head detection and elaboration 2022-11-20 11:36:45 +07:00
Nikolaj Bjorner fcaa85d7a8 #6456 - elaborate on error message 2022-11-20 11:27:39 +07:00
Nikolaj Bjorner 86f3702403 prevent re-declaration of enumeration sort names 
preventing redeclaration of all ADT cases is not part of this update.
 2022-11-19 19:46:34 +07:00
Nikolaj Bjorner c3c45f495a add some comments to elim_predicates 2022-11-19 19:45:25 +07:00
Nikolaj Bjorner 251d49d133 remove outdated comment 2022-11-19 18:55:30 +07:00
Nikolaj Bjorner 3f10933225 remove VERBOSE 0 2022-11-19 18:55:01 +07:00
Nikolaj Bjorner 771157696b new simplifier/tactic 
eliminate_predicates finds macros and eliminates predicates from formulas as pre-processing.
 2022-11-19 18:51:20 +07:00
Nikolaj Bjorner d735faae4e add isolated hide/add model converter functions 2022-11-19 18:50:37 +07:00
Nikolaj Bjorner a81a5ec68c add virtual function requirement to dependent_expr_state 2022-11-19 18:46:31 +07:00
Nikolaj Bjorner dcc995f0e5 code simplification 2022-11-19 18:45:54 +07:00
Nikolaj Bjorner 41b40c3a51 remove dead code 2022-11-19 18:45:07 +07:00
Nikolaj Bjorner c2e9016d04 display model-add parameters in correct order 2022-11-19 18:44:52 +07:00
Nikolaj Bjorner ba68652c72 add destructive equality resolution to existentials 2022-11-19 18:43:46 +07:00
Nikolaj Bjorner 7da91f4313 allow printing declarations with reverse variable order 2022-11-19 18:43:21 +07:00
Nikolaj Bjorner 59b7845c7d reset visited (fast mark) to not clash with occurs 2022-11-17 17:36:21 +09:00
Nikolaj Bjorner 6662afdd26 perf improvements to solve-eqs and euf-completion 2022-11-16 22:15:02 -08:00
Nikolaj Bjorner 2c7799939e wip - tuning and fixes to euf-completion 2022-11-16 03:47:38 -08:00
Nikolaj Bjorner 98fc8c99db add shortcut to equality mk utility 2022-11-16 03:47:01 -08:00
Nikolaj Bjorner 55ab7778f4 fix perf bug in new solve_eqs. 2022-11-16 03:46:17 -08:00
Nikolaj Bjorner d70dbdad50 wip euf-completion - debugging 2022-11-15 20:17:39 -08:00
Nikolaj Bjorner 255414f4a9 fix regression crash 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-11-15 11:20:12 -08:00
Nikolaj Bjorner 9845c33236 add shortcuts in rewriter, eliminate redundancies in dependent_expr tactic 2022-11-15 09:13:13 -08:00
Nikolaj Bjorner bfae8b2162 set flat_and_or to false in bv rewriter 2022-11-15 05:47:28 -08:00
Nikolaj Bjorner 041b5f9ef0 rename away solve_eqs2 to solve_eqs 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-11-14 20:01:37 -08:00
Nikolaj Bjorner 48c0f8694f euf-completion bug fix, streamline name to solve_eqs 2022-11-14 20:01:00 -08:00
Nikolaj Bjorner 3eeb59db34 fix #6451 missing occurrence marking when there is an unsafe equality already 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-11-14 19:23:27 -08:00
Nikolaj Bjorner 95e07ffe8e disable unsound context equality solving 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-11-14 19:14:51 -08:00
Nikolaj Bjorner 6297c001ee remove legacy solve_eqs_tactic entirely 
also, bug fixes to elim_unconstrained (elim_uncnstr2) which is to replace legacy tactic for eliminating unconstrained constants.
 2022-11-14 18:57:16 -08:00
Nikolaj Bjorner 3f2bbe5589 harness del_object #6452 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-11-14 08:54:08 -08:00
Nikolaj Bjorner 3d2bf13577 streamline statistics, fix bug in updating goals 2022-11-13 20:30:00 -08:00
Nikolaj Bjorner ce6cfeaa68 fix bug in euf-completion relating to missed normalization 2022-11-13 18:01:17 -08:00
Nikolaj Bjorner 3fa81d6527 bug fixes to elim-uncnstr2 tactic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-11-13 13:25:19 -08:00
Nikolaj Bjorner 38cde14e08 wip missing updates 2022-11-13 12:10:43 -08:00
Nikolaj Bjorner 196788a091 bug fix for equality solving 2022-11-13 12:09:56 -08:00
Nikolaj Bjorner ce76e3138d streamlining expr-inverter code 2022-11-13 11:48:32 -08:00
Nikolaj Bjorner 3d570aaa0a add missing process_eq 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-11-12 18:43:57 -08:00
Nikolaj Bjorner 0b83732b82 missing override specifier 2022-11-12 18:35:41 -08:00
Nikolaj Bjorner 343603f643 fix build 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-11-12 18:34:04 -08:00
Nikolaj Bjorner e33e66212c propagate values should not flatten and/or 
also, elim_uncstr should only be disabled on recursive functions
 2022-11-12 18:03:47 -08:00
Nikolaj Bjorner f4e17ecc65 add logging and diagnostics 2022-11-12 18:03:47 -08:00
Nikolaj Bjorner 9d09064ad0 add comments to elim_unconstrained and remove unused function 2022-11-12 18:01:38 -08:00
Nikolaj Bjorner efbe0a6554 wip - updated version of elim_uncstr_tactic 
- remove reduce_invertible. It is subsumed by reduce_uncstr(2)
- introduce a simplifier for reduce_unconstrained. It uses reference counting to deal with inefficiency bug of legacy reduce_uncstr. It decomposes theory plugins into expr_inverter.

reduce_invertible is a tactic used in most built-in scenarios. It is useful for removing subterms that can be eliminated using "cheap" quantifier elimination. Specifically variables that occur only once can be removed in many cases by computing an expression that represents the effect computing a value for the eliminated occurrence.

The theory plugins for variable elimination are very partial and should be augmented by extensions, esp. for the case of bit-vectors where the invertibility conditions are thoroughly documented by Niemetz and Preiner.
 2022-11-12 17:56:45 -08:00
Nikolaj Bjorner 689af3b4df add comments to elim_unconstr_tactic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2022-11-10 16:42:09 -08:00
Nikolaj Bjorner 15be80c954 remove dependency on hash_compare 2022-11-09 09:06:34 -08:00
Nikolaj Bjorner 8da13ae24a add statistics to verbose output of asserted formulas 2022-11-08 18:37:30 -08:00
Nikolaj Bjorner 9a656772b4 fix #6446 2022-11-08 18:37:16 -08:00
Nikolaj Bjorner 4d86d73942 disable also tests for Windows x86, does not work with CI pipeline 2022-11-08 17:15:59 -08:00
Nikolaj Bjorner ff68df3451 update output of z3 doc 2022-11-08 16:10:50 -08:00
Nikolaj Bjorner 254f7b97ef cleanup state to clear model trail during calls. 2022-11-08 15:56:10 -08:00