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18905 commits 24 branches 48 tags 158 MiB
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1119 commits

Author SHA1 Message Date
Nikolaj Bjorner
42aad423c9 parent list of root may miss nodes from children if they are not congruence roots. We walk parents of all siblings to not miss 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-14 18:20:44 -08:00
Nikolaj Bjorner
79a2c86c05 fixup fixedbits again 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-14 14:38:44 -08:00
Nikolaj Bjorner
ff637a3989 fix missing propagation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-14 13:10:35 -08:00
Nikolaj Bjorner
05d61ed090 fix incorrect fixed_bits forbidden interval calculation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-14 12:19:04 -08:00
Nikolaj Bjorner
60ac9388c8 fixup merges 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-14 09:57:29 -08:00
Nikolaj Bjorner
3f369ae962 fix unsound merge 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-13 17:47:20 -08:00
Nikolaj Bjorner
b7306f3c0c fix srem encoding 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-13 17:04:18 -08:00
Nikolaj Bjorner
477db7d8bd fix axiomatization for sdiv 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-13 13:10:00 -08:00
Nikolaj Bjorner
93be3d2b2c arithmetic 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-13 10:29:50 -08:00
Nikolaj Bjorner
33c43a474d fix quot-rem axioms: cannot be rewritten because it looses information 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-12 19:28:53 -08:00
Nikolaj Bjorner
211aff4cba fix missing handling of axiom 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-12 18:15:26 -08:00
Nikolaj Bjorner
aefbfc6ca4 bugbash 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-12 15:09:19 -08:00
Nikolaj Bjorner
22103c0322 bugfix 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-12 14:00:33 -08:00
Jakob Rath
70d2057557 comment 2024-01-12 16:32:36 +01:00
Nikolaj Bjorner
1acaed69c6 fix overflow 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-11 16:42:58 -08:00
Nikolaj Bjorner
3d33d28f8c check for viable assignment 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-11 13:02:40 -08:00
Nikolaj Bjorner
a2df3cb828 have propagate return whether it did something 2024-01-11 11:45:05 -08:00
Nikolaj Bjorner
4a2217a3e8 fix saturation condition for bvor 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-11 11:35:35 -08:00
Nikolaj Bjorner
9fb86a4d4f fixing fixed-bits viable 2024-01-11 11:09:06 -08:00
Nikolaj Bjorner
0d3a465e75 remove stale functionality, finish implementation for super-slices 2024-01-11 10:18:52 -08:00
Nikolaj Bjorner
6b12bd6dcd use offset/length for fixed slices to allow super-slices 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-11 10:05:11 -08:00
Jakob Rath
80184c6ee2 fix ashr axioms 2024-01-11 18:09:17 +01:00
Nikolaj Bjorner
9fb9e659b0 full interval case 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-11 08:44:16 -08:00
Nikolaj Bjorner
955c80e98b import updates from poly branch 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-10 19:42:58 -08:00
Nikolaj Bjorner
86de8bd5b1 add case for exclude 0 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-10 17:19:10 -08:00
Nikolaj Bjorner
17f4e8033f add associativity up front in internalize 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-10 17:01:53 -08:00
Nikolaj Bjorner
33c37cfdf0 bugbash bit-wise operations 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-10 16:05:55 -08:00
Nikolaj Bjorner
33f17215f7 bugfixes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-10 11:00:16 -08:00
Nikolaj Bjorner
e7c9c5f7a2 add built-in support for bvor: the rewriter converts bitwise and to bit-wise or so using bvor as a basis makes better sense 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-10 10:16:31 -08:00
Nikolaj Bjorner
e2c5d7d358 bugbash 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-09 15:30:33 -08:00
Nikolaj Bjorner
21711a14f5 bugbash 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-09 14:15:25 -08:00
Nikolaj Bjorner
f34e55e86e bugfix 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-08 20:44:30 -08:00
Nikolaj Bjorner
cc4ed602e5 inline propagation when adding new viable 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-08 20:31:14 -08:00
Nikolaj Bjorner
e26d597917 working on unit propagation explanation 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-07 15:29:18 -08:00
Nikolaj Bjorner
11c529162d add facility to support propagation 2024-01-06 16:26:03 -08:00
Nikolaj Bjorner
30c0771d24 redo fixed bits, add simplifications to intblast solver 2024-01-06 16:12:01 -08:00
Nikolaj Bjorner
c4b7061590 bugbash 
fix missing justification in explain_slice
tune intblast solver with some simplifications
bypass conflicts if the state is already conflicting
 2024-01-04 20:14:22 -08:00
Nikolaj Bjorner
cb672c7992 overflow example works 
- introduce weak/strong eval to temper unit propagation to use only weak evaluation.
- harness the amount of interval propagation provided on overflow constraints
- weak evaluation on overflow constraints is now trivialized
- viable insertion also does conflict detection
 2024-01-04 15:55:24 -08:00
Nikolaj Bjorner
5fc208cefc improve diagnostics 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-04 11:07:09 -08:00
Nikolaj Bjorner
7b0c04a3e8 bugbash 2024-01-04 10:54:02 -08:00
Nikolaj Bjorner
f71219a9d0 na 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-03 20:28:57 -08:00
Nikolaj Bjorner
f805130c0b chain viables 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-03 20:22:01 -08:00
Nikolaj Bjorner
1cdefa81b7 degree reduction simplification to help int-blasting 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-03 13:46:27 -08:00
Nikolaj Bjorner
698c627359 bugbash 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-03 13:13:58 -08:00
Nikolaj Bjorner
3e13fe1fb2 bugbash 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-03 13:13:43 -08:00
Nikolaj Bjorner
f5aec6ecdf bugbash 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-03 13:12:42 -08:00
Nikolaj Bjorner
5730cad4e0 working on viable/explain 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-03 10:56:56 -08:00
Nikolaj Bjorner
e670194a2d filling in viable conflict analysis 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-03 10:10:57 -08:00
Nikolaj Bjorner
83b5352db6 fixing viable 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-03 08:27:23 -08:00
Nikolaj Bjorner
21236dc80a working on viable explanations 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2024-01-02 16:20:13 -08:00