Nikolaj Bjorner
15ee879602
fix #7532
2025-01-27 10:51:12 -08:00
Nikolaj Bjorner
076d3dbf13
fix assertion violation in the code path where the simplifier throws a memout exception
2025-01-14 16:37:53 -08:00
Nikolaj Bjorner
d9e7b8c21f
fixes to trim
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2023-07-03 19:26:19 +02:00
Nikolaj Bjorner
d11e5c8ca6
address compiler warnings, and user question #6544
2023-01-19 19:02:43 -08:00
Nikolaj Bjorner
9fc4015c46
remove ternary clause optimization
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Removing ternary clause optimization from sat_solver simplifies special case handling of ternary clauses throughout the sat solver and dependent solvers (pb_solver). Benchmarking on QF_BV suggests the ternary clause optimization does not have any effect. While removing ternary clause optimization two bugs in unit propagation were also uncovered: it missed propagations when the only a single undef literal remained in the non-watched literals and it did not update blocked literals in cases where it could in the watch list. These performance bugs were for general clauses, ternary clause propagation did not miss propagations (and don't use blocked literals), but fixing these issues for general clauses appear to have made ternary clause optimization irrelevant based on what was measured.
2022-10-30 03:57:39 -07:00
Nikolaj Bjorner
fe1b4bf5ce
disable ternary, fixes to propagation, make bv_rewrites for multiplier n-ary
2022-10-26 23:44:38 -07:00
Nikolaj Bjorner
549753845e
bv and gc of literals ( #4692 )
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* bv and gc of literals
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* overload
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* diseq
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* diseq
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2020-09-17 14:24:07 -07:00
Nikolaj Bjorner
d17248821a
include chronological backtracking, two-phase sat, xor inprocessing, probsat, ddfw
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2019-06-13 08:45:21 -07:00
Nikolaj Bjorner
563f337997
testing memory defragmentation, prefetch, delay ate
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2018-04-27 17:59:03 +02:00
Nikolaj Bjorner
e183f8b743
disable lookahead simplification when external solver is used
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2018-02-09 21:46:45 -08:00
Nikolaj Bjorner
75bf942237
throttle cce pass
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2018-01-31 21:15:07 -08:00
Nikolaj Bjorner
a639452553
Merge branch 'opt' of https://github.com/nikolajbjorner/z3 into opt
2018-01-31 11:10:54 -08:00
Nikolaj Bjorner
7ada6c25d9
fix build
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2018-01-31 11:10:42 -08:00
Nikolaj Bjorner
2739342aba
fix updates to cce
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2018-01-30 23:41:04 -08:00
Nikolaj Bjorner
2d0f80f78e
add cce minimization
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2018-01-30 09:22:36 -08:00
Nikolaj Bjorner
5a2b072ddf
working on completing ATE/ALA for acce and abce
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2018-01-29 20:32:06 -08:00
Nikolaj Bjorner
71c52396cb
fix transitive reduction bug, eliminate blocked tag on binary clauses, separate BIG structure from scc
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2017-12-13 02:38:06 -08:00
Nikolaj Bjorner
651587ce01
merge with master branch
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2017-09-19 09:39:22 -07:00
Nikolaj Bjorner
b19f94ae5b
make include paths uniformly use path relative to src. #534
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2017-07-31 13:24:11 -07:00
Nikolaj Bjorner
6571aad440
debugging double lookahead and autarkies
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2017-03-31 07:21:59 -07:00
Nikolaj Bjorner
2afd45b3c2
working on lookahead
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2017-03-27 04:53:27 +02:00
Nikolaj Bjorner
8d18fd075e
remove sources for unused variable warnings
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-12-21 09:54:45 -08:00
Nikolaj Bjorner
5b497b6249
reduce set of mainly verbose warnings raised by -Wmaybe-uninitialized and unused variable warnings from release mode builds
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-06-22 20:25:47 -07:00
Nikolaj Bjorner
3a6e6df4f5
fix unused-but-set-variable warnings reported in #579
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-05-18 11:02:10 -07:00
Nikolaj Bjorner
96e157e201
fix warnings for unused variables
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2016-05-17 13:54:22 -07:00
nikolajbjorner
0d9f949ab2
Fix memory smash on double free of clauses
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Signed-off-by: nikolajbjorner <nbjorner@microsoft.com>
2015-02-23 10:28:32 -08:00
Leonardo de Moura
c66b9ab615
Reorganizing the code
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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2012-10-20 15:30:42 -07:00
