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18581 commits 24 branches 48 tags 158 MiB
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3048 commits

Author SHA1 Message Date
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
03e012c1d8 bugfixes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-29 15:13:11 -08:00
Nikolaj Bjorner
91b9d78cd3 bugfixes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-28 17:36:42 -08:00
Nikolaj Bjorner
20afc55b41 misc bugfixes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-28 14:24:52 -08:00
Nikolaj Bjorner
737913b67e bugfixes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-27 14:00:28 -08:00
Nikolaj Bjorner
6103c9d718 bug fixes 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-27 11:29:42 -08:00
Nikolaj Bjorner
fbbad72c29 use lazy explanation function for slices, use euf-bv-plugin to extract slices 2023-12-23 11:10:18 -08:00
Nikolaj Bjorner
0353177fe0 import master branch 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-16 16:56:09 -08:00
Nikolaj Bjorner
c03a05eb75 axioms for b-and 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-16 16:29:11 -08:00
Nikolaj Bjorner
d0a59f3740 intblast with lazy expansion of shl, ashr, lshr 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-16 15:12:57 -08:00
Bruce Mitchener
50e0fd3ba6
Use noexcept more. (#7058) 2023-12-16 12:14:53 +00:00
Nikolaj Bjorner
b44ab2f620 add rewriters for and 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-15 14:55:02 -08:00
Nikolaj Bjorner
9293923b8a Add intblast solver 2023-12-15 13:50:38 -08:00
Christoph M. Wintersteiger
2e83352d42
Fix bug in fp.round_to_integral (#7060) 2023-12-15 08:34:27 -08:00
Bruce Mitchener
e90a844508
Use override more. (#7059) 2023-12-15 08:44:57 +00:00
Nikolaj Bjorner
8e26c2af17 fix #7049 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-08 13:05:21 -08:00
Christoph M. Wintersteiger
6910a4e18c
Fix to_fp_signed (#7034) 2023-12-03 16:38:06 -08:00
Nikolaj Bjorner
ea3628e50b remove hoist functionality 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-03 16:28:43 -08:00
Nikolaj Bjorner
1de25ed09c pending files 2023-12-02 19:43:51 -08:00
Nikolaj Bjorner
ba8d8f0af7 Disable hoist entirely, it is bad on QF_LIA and does not help on other observed cases 2023-12-02 15:40:47 -08:00
Nikolaj Bjorner
5c1e7f7112 fix #7029 2023-12-02 10:48:40 -08:00
Nikolaj Bjorner
a15a7cee7b touch 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-12-01 14:13:05 -08:00
Nikolaj Bjorner
faf14012ba Regressions reported by Guido 2023-12-01 13:32:13 -08:00
Nikolaj Bjorner
b52fd8d954 add EUF plugin framework. 
plugin setting allows adding equality saturation within the E-graph propagation without involving externalizing theory solver dispatch. It makes equality saturation independent of SAT integration.
Add a special relation operator to support ad-hoc AC symbols.
 2023-11-30 13:58:30 -08:00
Nikolaj Bjorner
26440ed3d8 deal with ubuntu/clang warnings 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-11-29 15:45:19 -08:00
Nikolaj Bjorner
e9abdbb7a4 fix #7011 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-11-29 15:08:08 -08:00
Nikolaj Bjorner
2f01b5b567 re-enable delayed literal propagation 2023-11-29 14:00:17 -08:00
Nikolaj Bjorner
4289cfac8d revert some fixes to euf 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-11-29 13:47:59 -08:00
Nikolaj Bjorner
d469c1054e remove separate to_add_literal queue 2023-11-29 12:45:43 -08:00
Nikolaj Bjorner
e972eb33b2 #6523 - contains_ptr bug regarding etable reinserts 2023-11-29 10:44:36 -08:00
Nikolaj Bjorner
79bbbf76d0 fix #7006 2023-11-28 15:06:27 -08:00
Bruce Mitchener
9d1ceab1f2
cmake: Use FindPython3. (#7019) 
`FindPythonInterp` has been deprecated for a long time and is more
verbal about that deprecation now.

The build system no longer uses `PYTHON_EXECUTABLE` but instead uses
`Python3_EXECUTABLE`.
 2023-11-27 11:20:21 +01:00
Nikolaj Bjorner
b9455c3692 #6999 deal with implicit assumptions, more robust pattern matching 
The code is making some assumptions that arrays are 1-dimensional. This is not generally true.
Introducing pattern matching to ensure the assumption is met.
Avoid get_arg(..) especially when there is an approach based on pattern matching recognizers.
 2023-11-17 10:06:20 -08:00
Nikolaj Bjorner
ad2107f079 fix #6978 2023-11-14 08:45:22 -08:00
Nikolaj Bjorner
f97dd34028 tests 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-30 14:54:04 -07:00
Christoph M. Wintersteiger
9d57bdd2ef
Assorted fixes for floats (#6968) 
* Improve 4be26eb543

* Add-on to 0f4f32c5d0

* Fix mk_numeral

* Fix corner-case in fp.div

* Fixes for corner-cases in mk_to_fp_(un)signed

* Fix out-of-range results in mpf_manager::fma

* Further adjustments for fp.to_fp_(un)signed

* fp.to_fp from real can't be NaN

* fp.to_fp from reals: add bounds

* Fix NaN encodings in theory_fpa.

* Fix fp.fma rounding with tiny floats

* Fix literal creation order in theory_fpa
 2023-10-29 17:29:42 -07:00
Nikolaj Bjorner
93427f1175 regression test 2447 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-26 08:48:58 -07:00
Nikolaj Bjorner
0b8d7b755d useful string rewrites 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-26 03:48:50 -07:00
Nikolaj Bjorner
7b490543ca add missing simplification; handle nit #6952 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-25 10:00:15 -07:00
Nikolaj Bjorner
0859be5649 #6953 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-10-25 09:07:04 -07:00
Nikolaj Bjorner
8fac89cdcc enable more simplification in case inequality triggers a change. 2023-10-21 19:58:39 -07:00
Nikolaj Bjorner
5942dc24bd #6523 2023-10-15 11:41:25 -07:00
Nikolaj Bjorner
61319ffd85 cache is_shared information in the enode 
observed perf overhead for QF_NIA is that assume_eqs in theory_lra incurs significant overhead when calling is_relevant_and_shared. The call to context::is_shared and the loop checking for beta redexes is a main bottleneck. The bottleneck is avoided by caching the result if is_shared inside the enode. It is invalidated for every merge/unmerge.
 2023-09-23 17:19:06 -07:00
Nikolaj Bjorner
643512613a simplify last_index function 2023-09-18 12:52:59 -07:00
Nuno Lopes
b1c52c0b16 don't crash when a function doesn't have a model when converting a solver to string 2023-09-18 10:16:19 +01:00
Nikolaj Bjorner
b87a91379c fix #6894 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-09-14 17:14:14 -07:00
Nikolaj Bjorner
50d76a2fe3 fix #6894 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-09-14 17:14:14 -07:00
Nikolaj Bjorner
4d9af7848d add parameter to disable pattern inference #6884 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-09-03 15:27:37 -07:00
Nikolaj Bjorner
99239068ba some template instantiations #6869 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2023-09-03 15:21:49 -07:00
Nuno Lopes
00593609c5 minor code simplification 2023-08-30 12:50:29 +01:00