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526 Commits

Author SHA1 Message Date
Alan Mishchenko f2d096c9f0 Improving CEX minimization. 2017-02-10 13:20:20 -08:00
Alan Mishchenko d335ee096e Standardizing the use of new CNF generator. Adding CNF variable connectivity information. 2017-02-10 11:05:00 -08:00
Alan Mishchenko 4e6978f242 Profiling CEX minimization. 2017-02-09 18:05:55 -08:00
Bruno Schmitt 871899dcea - Adding a compile time option to use floats for var activity (now it can be either ‘double’, ‘float’ or ‘unsigned’ (default)) 
- Adding vector of ‘float’
- Adding an option to configure the ratio of learnt clauses to be kept in clause database at each reduction (0 means no reduction).
- Other small changes.
 2017-02-09 05:17:50 -08:00
Alan Mishchenko 80f5070dbe Re-introducing floating-point activity in the SAT solver. 2017-02-07 02:05:03 -08:00
Alan Mishchenko 44dbf992a7 Re-introducing floating-point activity in the SAT solver. 2017-02-06 23:28:00 -08:00
Alan Mishchenko 542f84d2fb Small changes to compile satoko on Windows. 2017-02-06 20:54:41 -08:00
Bruno Schmitt 0fb4442a82 Small changes to support old compilers. 2017-02-06 19:50:57 -08:00
Bruno Schmitt cac3967b52 Adding a new SAT solver to ABC. (Satoko) 
The command is ‘satoko’
 2017-02-06 11:34:52 -08:00
Alan Mishchenko 89e8e50069 Improving new X-valued simulation in 'pdr'. 2017-02-06 00:21:28 -08:00
Alan Mishchenko e91abd6307 Improvements to inductive generalization in IC3/PDR by Zyad Hassan. 2017-02-02 16:03:40 -08:00
Alan Mishchenko f14ee271ab Reordering if-statements in the xsat solver. 2017-02-02 12:44:54 -08:00
Alan Mishchenko 782125c61e Custom floating-point number. 2017-01-28 12:01:32 -08:00
Alan Mishchenko ec6b765314 Custom floating-point number. 2017-01-28 11:46:47 -08:00
Alan Mishchenko 636332c63e Adding features for invariant minimization. 2017-01-25 22:27:46 -08:00
Alan Mishchenko c3dfec7467 Fixing windows compilation problem. 2017-01-24 20:49:47 -08:00
Alan Mishchenko 88e887d1a0 Fixing gcc compilation problem. 2017-01-24 20:46:03 -08:00
Bruno Schmitt 876eb5a52e Merged alanmi/abc into default 2017-01-25 13:40:31 +09:00
Alan Mishchenko 4488ab83d0 Updates to delay optimization project. 2016-12-29 14:45:16 +07:00
Bruno Schmitt 123b425052 Fixes to make xSAT compile with old compilers. 
Small typos and variables renaming.
 2016-12-13 11:29:38 -02:00
Alan Mishchenko cb49c5d006 Bug fix in 'dsat <file.cnf>' when the number of classes in listed incorrectly. 2016-12-13 10:34:17 +08:00
Alan Mishchenko 81af996fee Bug fix in 'dsat <file.cnf>' when the number of classes in listed incorrectly. 2016-12-13 10:02:28 +08:00
Bruno Schmitt 5351ab4b13 xSAT is an experimental SAT Solver based on Glucose v3(see Glucose copyrights below) and ABC C version of 
MiniSat (bsat) developed by Niklas Sorensson and modified by Alan Mishchenko. It’s development has reached
sufficient maturity to be committed in ABC, but still in a beta state.

TODO:
* Read compressed CNF files.
* Study the use of floating point for variables and clauses activity.
* Better documentation.
* Improve verbose messages.
* Expose parameters for tuning.
 2016-12-12 16:20:38 -02:00
Alan Mishchenko 1343b8a80c Fixes and adjustments for the edge computation flow. 2016-07-15 19:56:34 -07:00
Alan Mishchenko e1b51d1863 Experiments with edge-based mapping. 2016-06-15 18:47:10 -07:00
Alan Mishchenko 555ed0b158 Enabling AIGs without structural hashing. 2016-05-20 13:50:19 -07:00
Alan Mishchenko 2ded89cca5 Added switch 'bmc3 -r' to disable periodic restarts in the SAT solver. 2016-05-19 22:33:40 -07:00
Alan Mishchenko fa111ff81b Experiments with generating sat assignments. 2016-05-15 16:43:10 -07:00
Alan Mishchenko 12688ac9ee Experiments with generating sat assignments. 2016-05-14 23:14:20 -07:00
Alan Mishchenko 5b6e5b8178 New command 'expand' to expand SOPs against the offset. 2016-05-12 22:41:20 -07:00
Alan Mishchenko e3e6236663 This code was accidentally deleted from the SAT solver (effectively disabling restarts!) 2016-04-30 10:42:10 -07:00
Alan Mishchenko 67bfb4ba09 Improved algo for edge computation. 2016-04-23 15:13:22 +03:00
Alan Mishchenko 89d4ac5029 Adding new implementation of LEXSAT. 2016-04-12 19:44:21 -07:00
Alan Mishchenko 8de7383edd Restructing sat_solver_solve() method for pushing/popping assumptions. 2016-04-12 19:43:15 -07:00
Alan Mishchenko b4bb88ae5d Removing unused feature of the SAT solver (user-guided variable ordering). 2016-04-12 12:04:03 -07:00
Alan Mishchenko 3a553e15ac Removing unused feature of the SAT solver (native support for cardinality constraint). 2016-04-12 11:58:55 -07:00
Alan Mishchenko 720082753f Improvements to delay-optimization in &satlut. 2016-04-04 12:51:05 -07:00
Alan Mishchenko 81b70c4d20 Corner-case bug fix in 'satclp' with conflict limit. 2016-03-25 13:51:05 -07:00
Alan Mishchenko 73cbe319ff Bug fix in &fftest: not outputting test patterns when user test patterns are given. 2016-03-09 09:28:31 +09:00
Alan Mishchenko 67f4f1adae Experiments with SAT-based mapping. 2016-02-07 21:13:33 -08:00
Alan Mishchenko 4ecf43f1f0 Adding a way to derive cardinality constraint as a sorting network. 2016-01-13 20:32:26 -08:00
Alan Mishchenko 8dd31fb4a9 Integrating new CNF generation into &bmc. 2016-01-12 22:07:01 -08:00
Alan Mishchenko 1bbf239843 Experiments with SAT-based mapping. 2016-01-10 21:04:17 -08:00
Alan Mishchenko d6178631be Adding support of candinality clause to the SAT solver. 2016-01-10 10:19:26 -08:00
Alan Mishchenko 19e4604b1f Improvements to 'satclp'. 2015-11-09 09:23:39 -08:00
Alan Mishchenko 58c2584e2a Improvements to 'satclp'. 2015-11-09 08:33:56 -08:00
Alan Mishchenko e50fc467fd Improvements to 'satclp' (unfinished). 2015-11-06 13:49:23 -08:00
Alan Mishchenko dd365cbaf3 Improvements to 'satclp' (unfinished). 2015-11-06 09:05:17 -08:00
Alan Mishchenko 9521d1345b Improvements to 'satclp'. 2015-10-28 13:44:29 -07:00
Alan Mishchenko 701565eb7b Set the default cube limit in 'satclp' to be 0. 2015-10-23 15:44:53 -07:00