Nikolaj Bjorner
88844a84aa
mul-saturation wip
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fixup conflict explanations in mul_saturation, add parameter to enable it, add statistics
2025-09-27 12:17:40 +03:00
Nikolaj Bjorner
b02b0cf31f
fix build
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2025-09-22 14:44:50 +03:00
Nikolaj Bjorner
db5a991257
more imp notes and relevancy experiment
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2025-09-22 12:44:50 +03:00
Nikolaj Bjorner
2517b5a40a
port improvements from ilana branch to master regarding nla
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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
2025-09-19 12:28:31 -07:00
Nikolaj Bjorner
c75b8ec752
add option to control epsilon #7791
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#7791 reports on using model values during lex optimization that break soft constraints.
This is an artifact of using optimization where optimal values can be arbitrarily close to a rational.
In a way it is by design, but we give the user now an option to control the starting point for epsilon when converting infinitesimals into rationals.
2025-08-17 16:51:00 -07:00
Nikolaj Bjorner
c387b20ac6
move smt params to params directory, update release.yml
2025-06-09 10:47:22 -07:00
Lev Nachmanson
a1673f2bdd
fallback to Gomory cuts and gcd conflicts if dio fails
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2025-04-21 17:10:32 -07:00
Lev Nachmanson
17af18fe31
make gcd call in dio optional
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2025-04-18 18:24:50 -07:00
Lev Nachmanson
59edb81f86
Update lp_settings.cpp
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white space change
2025-04-18 18:24:50 -07:00
Lev Nachmanson
8db9f52386
add parameter m_dio_calls_period
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2025-04-18 18:24:50 -07:00
Lev Nachmanson
972f80188a
throttle dio for big numbers
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2025-04-18 18:24:50 -07:00
Lev Nachmanson
3e49d9fcfe
reuse dio branch
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2025-04-18 18:24:50 -07:00
Lev Nachmanson
a62d664ae4
testing! disable gomory cut in int_solver
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2025-03-24 07:44:13 -10:00
Lev Nachmanson
6f7b749ff9
improved dio handler
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2025-03-24 07:44:13 -10:00
Lev Nachmanson
e920291393
fixing the default parameters of dio and rename m_gomory_cuts to m_cuts
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2025-02-11 12:23:00 -10:00
Lev Nachmanson
134bed826a
throttle the branching in dio
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2025-02-11 12:23:00 -10:00
Lev Nachmanson
a19e10912f
make dio less aggressive, allow other cuts
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2025-02-11 12:23:00 -10:00
Lev Nachmanson
2ebb957cc8
enable cuts from proofs
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2025-02-11 12:23:00 -10:00
Lev Nachmanson
097a25ebfe
add parameter to control calling diophantine equations
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2025-02-11 12:23:00 -10:00
Lev Nachmanson
2934618c50
remove simplify_inequality from gomory.cpp
2024-01-04 11:40:57 -10:00
Lev Nachmanson
0728b81e9e
add parameter lp_settings.m_gomory_simplify
2023-12-28 06:00:57 -10:00
Lev Nachmanson
e091a2e775
remove the line with clang-format off
2023-07-10 12:05:59 -07:00
Lev Nachmanson
5ed2a82893
set clang format off for lp files ( #6795 )
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* adding // clang-format off
* set clang-format off at the beginning of lp files
* set clang-format off
* remove dead code
2023-07-03 17:35:16 -07:00
Lev Nachmanson
f351eb3ab2
remove many methods dealing with double
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2023-03-08 10:27:05 -08:00
Nikolaj Bjorner
87d4ce2659
working on #5614
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there are some different sources for the performance regression illustrated by the example. The mitigations will be enabled separately:
- m_bv_to_propagate is too expensive
- lp_bound_propagator misses equalities in two different ways:
- it resets row checks after backtracking even though they could still propagate
- it misses equalities for fixed rows when the fixed constant value does not correspond to a fixed variable.
FYI @levnach
2021-11-02 14:55:39 -07:00
Nikolaj Bjorner
8412ecbdbf
fixes to new solver, add mode for using nlsat solver eagerly from nla_core
2021-03-14 13:57:04 -07:00
Lev Nachmanson
33cbd29ed0
mv util/lp to math/lp
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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
2020-01-28 10:04:21 -08:00
