Nikolaj Bjorner
f6e3c5ae79
re-enable fixed tabu
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2025-01-05 11:49:12 -08:00
Nikolaj Bjorner
710f757495
fixup parameter handling for enabling bv-lookahead
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2025-01-04 15:57:02 -08:00
Nikolaj Bjorner
05f166f736
add py_value to selected classes in python bindings, add mode for input-assertion based lookahead solving
2025-01-04 13:40:49 -08:00
Nikolaj Bjorner
7e4681d836
enable rotation
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2025-01-03 11:49:39 -08:00
Nikolaj Bjorner
e9c656701d
throttle costly flips by reset and random
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2025-01-02 20:39:41 -08:00
Nikolaj Bjorner
70f7feabc8
flip tabu on predicate being repaired, add model rotation code
2025-01-02 14:39:36 -08:00
Nikolaj Bjorner
cb61af0496
fix restart counters
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2025-01-01 14:34:09 -08:00
Nikolaj Bjorner
b12e72eaad
extend lookhaead to work over nested terms with predicates
2025-01-01 12:37:39 -08:00
Nikolaj Bjorner
b415b82625
take 1 on flip conditions
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2024-12-31 11:44:38 -08:00
Nikolaj Bjorner
3433b14dfa
separate fixed from bits to allow updates that break tabu
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- range and fixed restrictions on terms are based on constraints and can be violated temporarily.
- bv_eval currently does not allow updating over fixed bits which leads to non-termination. TODO
- lookahead only considers tabu when setting values of variables.
2024-12-30 17:47:18 -08:00
Nikolaj Bjorner
d8741b4aec
have apply-update check can_set instead of caller
2024-12-30 08:56:09 -08:00
Nikolaj Bjorner
bcf66f214f
code cleanup, add comments
2024-12-30 08:51:49 -08:00
Nikolaj Bjorner
d81de1a67e
align updated version of lookahead with legacy heuristics
2024-12-29 21:22:32 -08:00
Nikolaj Bjorner
6ea68310c9
fix stack overflow regression in bool_rewriter
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2024-12-28 18:21:59 -08:00
Nikolaj Bjorner
f41134d1b6
h
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- avoid more platform specific behavior when using m_mk_extract,
- rename mk_eq in bool_rewriter to mk_eq_plain to distinguish it from mk_eq_rw
- rework bv_lookahead to be more closely based on sls_engine, which has much better heuristic behavior than attempt 1.
2024-12-28 17:40:25 -08:00
Nikolaj Bjorner
b0eee16109
fix double override bug in bv_lookahead, integrate with bv_eval
2024-12-27 12:26:18 -08:00
Nikolaj Bjorner
5eb71c3be6
integrate lookahead v1 into repair loop
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this ports some functionality from lookahead solver for qfbv-sls into sls-smt.
2024-12-26 17:49:30 -08:00
Nikolaj Bjorner
d3a6521185
rely on is_sat fallback for failed repair-up, add separate file for WIP on lookahead.
2024-12-26 13:06:28 -08:00
