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git.unchartedbackwaters.co.uk Git - francis/stp.git/log
trevor_hansen [Wed, 2 Feb 2011 12:32:36 +0000 (12:32 +0000)]
Improvement. Cleanup memory better at the end.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1115
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trevor_hansen [Wed, 2 Feb 2011 05:39:54 +0000 (05:39 +0000)]
Improvement. Use ABC's CNF converter by default when solving array problems using minisat.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1114
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trevor_hansen [Wed, 2 Feb 2011 03:10:05 +0000 (03:10 +0000)]
Remove no longer used code.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1113
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trevor_hansen [Wed, 2 Feb 2011 00:55:06 +0000 (00:55 +0000)]
Fix. Apply substitutions in another place to avoid an assertion error.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1112
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trevor_hansen [Tue, 1 Feb 2011 12:41:57 +0000 (12:41 +0000)]
Less Memory. Cache less frequently.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1111
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trevor_hansen [Tue, 1 Feb 2011 12:40:57 +0000 (12:40 +0000)]
Speedup. Track which sets have already being added to a cache, and don't add them again.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1110
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trevor_hansen [Mon, 31 Jan 2011 14:12:12 +0000 (14:12 +0000)]
Fix. Without a CallSAT_Result check call sometimes we get the wrong result. No idea why yet.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1109
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trevor_hansen [Mon, 31 Jan 2011 14:06:53 +0000 (14:06 +0000)]
Fix. If not simplifying during parsing an assertion was violated.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1108
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trevor_hansen [Sun, 30 Jan 2011 13:26:06 +0000 (13:26 +0000)]
Bugfix. Substitutions need to be written through arrays too. 2/2.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1103
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trevor_hansen [Sun, 30 Jan 2011 13:13:17 +0000 (13:13 +0000)]
Bugfix. Substitutions need to be written through arrays too.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1101
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trevor_hansen [Sun, 30 Jan 2011 13:11:58 +0000 (13:11 +0000)]
* The -t option now tracks time spent applying the substitution map.
* Some functions that should be private in the SubstitutionMap were made private.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1100
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trevor_hansen [Sun, 30 Jan 2011 12:45:32 +0000 (12:45 +0000)]
Fix. The last revision has some debugging messages enabled. Ooops.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1099
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trevor_hansen [Sun, 30 Jan 2011 05:44:01 +0000 (05:44 +0000)]
Improvement. Add substitution for variables by arbitary terms when creating substitution maps. The difficult part is check that substitutions don't create loops. This code replaces the old --config_full_bvsolve=1 option.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1098
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trevor_hansen [Sun, 30 Jan 2011 02:26:28 +0000 (02:26 +0000)]
Remove the full bvsolve option. I'm soon to commit a much better replacement of this.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1097
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trevor_hansen [Thu, 27 Jan 2011 07:06:19 +0000 (07:06 +0000)]
Cleanup. Remove Doug Lea's Malloc which is no longer used. We used to use dl malloc to give minisat a region of memory to allocate its data structures in. This meant that they were all close together in memory so that when cache line were stored, the lines would more often contain minisat data, rather than STP's data. However, Minisat 2.2 has a better allocator, so it allocates more of its stuff together in memory. The difference between the embedded minisat 2.2 in STP, and running it from the command line, is about 4%. Not a large enough difference to worry about.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1096
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trevor_hansen [Thu, 27 Jan 2011 06:28:11 +0000 (06:28 +0000)]
Improvement. Output peak memory usage, and CPU time used when using the -t option.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1095
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trevor_hansen [Thu, 27 Jan 2011 02:38:19 +0000 (02:38 +0000)]
Refactor. Split out the code to determine which variables are contained in an expression.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1094
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trevor_hansen [Wed, 26 Jan 2011 23:33:34 +0000 (23:33 +0000)]
* Improvement. Add array read refinement to the quick statistics.
* Speedup. Cache more things when doing array read refinement.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1093
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trevor_hansen [Wed, 26 Jan 2011 05:01:53 +0000 (05:01 +0000)]
Fix. Thanks to Dan Kaminsky for the report. It didn't compile on gcc 4.1.2
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1092
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trevor_hansen [Wed, 26 Jan 2011 00:04:43 +0000 (00:04 +0000)]
Speedup. Problems with lots of pluses sometimes ran slowly. For the same reason that BVOR/BVAND ones did.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1091
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trevor_hansen [Wed, 26 Jan 2011 00:03:25 +0000 (00:03 +0000)]
Fix. The c-api wasn't working because refactored object files were missing.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1090
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trevor_hansen [Mon, 24 Jan 2011 14:28:17 +0000 (14:28 +0000)]
Fix. Ooops. I'd commented out the fix of r1082 / r1083.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1089
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trevor_hansen [Sun, 23 Jan 2011 13:08:12 +0000 (13:08 +0000)]
Refactor. Move the code that goes to CNF via ASTNodes to it's own directory.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1087
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trevor_hansen [Sun, 23 Jan 2011 12:52:36 +0000 (12:52 +0000)]
Refactor. Move the clause bucket size so it can be adjusted at runtime.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1086
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trevor_hansen [Sun, 23 Jan 2011 00:57:04 +0000 (00:57 +0000)]
Bugfix. An assertion error would be produced because a term was not simplified.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1082
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trevor_hansen [Wed, 19 Jan 2011 06:03:03 +0000 (06:03 +0000)]
Fix. remove the -j option. Which did nothing. It used to output a CNF from the contents of cryptominisat's insides. Not from the other solvers.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1081
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trevor_hansen [Wed, 19 Jan 2011 05:28:27 +0000 (05:28 +0000)]
Fix. sat, unsat, unknown aren't reserved words so they can be used as variable names in the SMTLIB2 format. Treat them instead as strings.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1080
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trevor_hansen [Wed, 19 Jan 2011 04:52:39 +0000 (04:52 +0000)]
The gulwani smtlib tests require arity > 2 bvplus and bvmult. It's not part of the specification, but it's easy to include...
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1078
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trevor_hansen [Wed, 19 Jan 2011 04:06:24 +0000 (04:06 +0000)]
Speedup. When parsing don't create symbols for the let names. Use strings instead.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1076
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trevor_hansen [Wed, 19 Jan 2011 01:29:22 +0000 (01:29 +0000)]
Cleanup / Refactor. Will call the sat solver fewer times.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1075
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trevor_hansen [Wed, 19 Jan 2011 01:05:12 +0000 (01:05 +0000)]
Bugfix. Maybe. Empty smtlib and smtlib2 format files would cause a segfault / bad thing. I suspect these should be allowed, but haven't checked versus the specification.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1073
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trevor_hansen [Wed, 19 Jan 2011 00:32:46 +0000 (00:32 +0000)]
Add the --config_full_bvsolve=1 option. With this option enabled, I know of no other segfaults/crashes in STP. However, for now, enabling it causes STP to run very slowly when processing problems with arrays.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1071
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trevor_hansen [Tue, 18 Jan 2011 12:51:49 +0000 (12:51 +0000)]
Fix. ClearAllTables() deleted all the dynamically allocated memory, but left the containers that pointed to them around. Fine if called by the destructor, not fine if called elsewhere.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1070
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trevor_hansen [Tue, 18 Jan 2011 12:45:56 +0000 (12:45 +0000)]
Bugfix. The same index could be stored twice in the array. I suspect it used to cause problems. But don't have any fixed test cases to prove it.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1069
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trevor_hansen [Tue, 18 Jan 2011 12:39:03 +0000 (12:39 +0000)]
Cleanup. Scope a variable so that it's killed of early.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1068
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trevor_hansen [Tue, 18 Jan 2011 12:35:57 +0000 (12:35 +0000)]
Bugfix. Experimental. Complicated input caused an assertion failure. Switching this option is the easy way to fix it. I'm not sure this is the right thing to do.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1066
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trevor_hansen [Mon, 17 Jan 2011 11:21:46 +0000 (11:21 +0000)]
Speedup. Use the better caching for the bit-vector solver.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1065
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trevor_hansen [Fri, 14 Jan 2011 23:35:48 +0000 (23:35 +0000)]
Bugfix. Running with -t would fail if the shortcut was taken.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1064
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trevor_hansen [Thu, 13 Jan 2011 12:54:12 +0000 (12:54 +0000)]
Remove experimental code (that wasn't enabled). That doesn't help.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1063
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trevor_hansen [Thu, 13 Jan 2011 02:08:43 +0000 (02:08 +0000)]
Bugfix. I forgot the return on a function. This only caused a problem if STP tried to return a wrong answer.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1062
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trevor_hansen [Sun, 9 Jan 2011 15:31:18 +0000 (15:31 +0000)]
Bugfix. Another leak introduced in r1055.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1061
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trevor_hansen [Sun, 9 Jan 2011 11:04:02 +0000 (11:04 +0000)]
Bugfix. A large memory leak was introduced in r1055.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1060
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trevor_hansen [Sun, 9 Jan 2011 04:05:09 +0000 (04:05 +0000)]
Fix a small memory leak.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1059
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trevor_hansen [Sun, 9 Jan 2011 04:04:12 +0000 (04:04 +0000)]
Fix small memory leak.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1058
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trevor_hansen [Sat, 8 Jan 2011 04:23:57 +0000 (04:23 +0000)]
Bugfix to the incremental cnf code (which isn't yet active).
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1057
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trevor_hansen [Sat, 8 Jan 2011 04:10:57 +0000 (04:10 +0000)]
Allow incremental building of the CNF from AIGs using Tseitin.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1056
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trevor_hansen [Sat, 8 Jan 2011 03:53:36 +0000 (03:53 +0000)]
* Speed up the bvsolver. Reduce the number of copies of sets by storing pointers in a map.
* Refactor the constant evaluator. Give a function that removes the need to first create the node that's been processed.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1055
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trevor_hansen [Fri, 7 Jan 2011 11:58:49 +0000 (11:58 +0000)]
Cleanup/Speedup. Minor changes to simplify formula.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1054
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trevor_hansen [Thu, 6 Jan 2011 00:11:41 +0000 (00:11 +0000)]
Bugfix. Would segfault if a vector was empty.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1053
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trevor_hansen [Mon, 3 Jan 2011 05:11:54 +0000 (05:11 +0000)]
* Remove the arraywrite_refinement_flag boolean flag. It didn't seem to do anything.
* If refinement is turned off, then use the AIG CNF conversion code (which is much much better).
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1052
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trevor_hansen [Mon, 3 Jan 2011 02:48:52 +0000 (02:48 +0000)]
Speedup, Cleanup of the SATBased_ArrayReadRefinement. It did lots of unnecessary work
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1051
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trevor_hansen [Sun, 2 Jan 2011 13:42:22 +0000 (13:42 +0000)]
Bugfix. Prevent *TrueDummy* being output in the counter example.
This is a nicer way of stopping it being output.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1050
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trevor_hansen [Sun, 2 Jan 2011 12:08:03 +0000 (12:08 +0000)]
Speedup. Experimental. Caching was disabled when converting a term to a constant using the model, IF the arrayReadFlag was false. Without caching it runs very slowly when building the counter example.
I've yet to find an instance where caching all the time gives the wrong example??
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1049
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trevor_hansen [Sun, 2 Jan 2011 12:03:38 +0000 (12:03 +0000)]
Refactor. Remove some commented out code. No idea what it did.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1048
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trevor_hansen [Sun, 2 Jan 2011 03:57:50 +0000 (03:57 +0000)]
Cleanup / Speedup. Unnecessary work was done when building the counter example.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1047
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trevor_hansen [Sun, 2 Jan 2011 02:29:15 +0000 (02:29 +0000)]
Bugfix. I didn't realise that the Flatten function didn't flatten BVOR/BVANDs. When I replaced the function, it did. Flattening these took a long time. This patch: (1) performs the flatten upfront, (2) allows BVOR/BVAND >2 arity.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1046
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trevor_hansen [Sun, 2 Jan 2011 01:49:16 +0000 (01:49 +0000)]
Refactor. This shouldn't change anything
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1045
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trevor_hansen [Sat, 1 Jan 2011 04:15:27 +0000 (04:15 +0000)]
Speedup. The old Flatten was too slow. On an instance of binary AND nodes 2 million deep it took longer than 1 hour to flatten.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1044
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trevor_hansen [Fri, 31 Dec 2010 12:21:40 +0000 (12:21 +0000)]
Extra assertion. Assert that internally created variables aren't already defined.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1043
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trevor_hansen [Fri, 31 Dec 2010 11:56:09 +0000 (11:56 +0000)]
Small leak fix. Didn't delete the variable introduced in the speedup of r1040
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1042
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trevor_hansen [Fri, 31 Dec 2010 02:40:53 +0000 (02:40 +0000)]
Fix the build. The speedup in the prior checkin needs these too.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1041
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trevor_hansen [Fri, 31 Dec 2010 02:35:05 +0000 (02:35 +0000)]
Speedup. This makes it much faster to create some bvconsts.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1040
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trevor_hansen [Fri, 31 Dec 2010 00:03:20 +0000 (00:03 +0000)]
Disable simplifications when printing back. I disabled the functionality when it was first included in r774. I've no idea why I disabled it.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1039
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trevor_hansen [Tue, 21 Dec 2010 12:34:26 +0000 (12:34 +0000)]
Work around occasional hang with -g (when timing out).
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1038
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smccam [Sat, 18 Dec 2010 02:32:20 +0000 (02:32 +0000)]
Silence some legitimate warnings about int to pointer casts that would
fail on 64-bit systems by turning them into runtime assertions instead.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1037
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smccam [Sat, 18 Dec 2010 01:23:07 +0000 (01:23 +0000)]
Makefile changes to improve the build of libstp.a. Don't include
Main.or files from MiniSAT, since we don't need them, and they bring
in main() functions and zlib dependencies we don't want. Add a c-api
test to try to keep this from regressing again.
Make it easier to pass -fPIC through to the MiniSAT build.
Clean up some comments and trailing whitespace in Makefiles.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1036
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trevor_hansen [Wed, 15 Dec 2010 07:34:49 +0000 (07:34 +0000)]
Adds a command line configuration option that is saved into a map. So that you can do: --config_va=3 for instance.
This will save va="3" into the config_options map.
I'm intending to use this to allow more options to be controlled from the command line without having the hastle of creating new names for each of them.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1035
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trevor_hansen [Sun, 28 Nov 2010 04:05:49 +0000 (04:05 +0000)]
Enable constant bit Propagation with CNF generation.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1034
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trevor_hansen [Sun, 28 Nov 2010 04:01:45 +0000 (04:01 +0000)]
Reduce the cutover for the advance CNF generator to 2M nodes. Annoyingly much more causes a segfault when memory is exhausted.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1033
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trevor_hansen [Sun, 28 Nov 2010 03:58:28 +0000 (03:58 +0000)]
Enable constant bit propagation by default.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1032
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trevor_hansen [Sun, 28 Nov 2010 03:48:31 +0000 (03:48 +0000)]
Fix build.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1031
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trevor_hansen [Sun, 28 Nov 2010 03:45:32 +0000 (03:45 +0000)]
Maximally precise transfer functions for constant bit propagation.
I'm still working on the multiplication like ones.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1030
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trevor_hansen [Sun, 28 Nov 2010 02:53:02 +0000 (02:53 +0000)]
No longer default to -m32, causes too many problems
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1029
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trevor_hansen [Sun, 28 Nov 2010 02:45:43 +0000 (02:45 +0000)]
Patch from Markus Groß. Thanks. Here is the description that Markus provided:
1. To fix a missing boost header the src/sat/Makefile has to be fixed
This is mentioned and described here: http://groups.google.com/group/stp-users/browse_thread/thread/
94246a7cf288d57
2. To fix compile errors regarding PRIu64 the src/sat/mtl/IntTypes.h has to be renamed.
Because most osx systems have a case insensitive file system #include <inttypes.h> includes the src/sat/mtl/IntTypes.h and therefore the inttypes.h from the c library is never included.
I renamed the file from IntTypes.h to IntTypesMtl.h.
This fixes the bug reported here: http://groups.google.com/group/stp-users/browse_thread/thread/
c00ab4b90c4ae86a
3. In src/sat/cryptominisat2/ClauseAllocator.h I changed two variable types from uint to uint32_t (otherwise I get: unknown type uint)
4. In src/sat/utils/System.cc
The part ifdef __APPLE__ is missing the memUsedPeak function which leads to an linker error.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1028
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trevor_hansen [Sat, 6 Nov 2010 10:14:06 +0000 (10:14 +0000)]
Bugfix. simplifying-minisat failed when abstraction/refinement was turned on. The elminate() function needs to be called.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1026
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trevor_hansen [Sun, 3 Oct 2010 03:42:11 +0000 (03:42 +0000)]
Fix. An optimisation added in r1020 was disabled. This caused the unit tests to fail.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1025
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trevor_hansen [Fri, 1 Oct 2010 14:35:44 +0000 (14:35 +0000)]
Bugfix. Unsigned modulus of zero returned 1, it should return 0.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1023
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trevor_hansen [Fri, 24 Sep 2010 00:32:30 +0000 (00:32 +0000)]
Experimental. Push bvand and bvor through concats.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1022
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trevor_hansen [Sun, 12 Sep 2010 14:21:38 +0000 (14:21 +0000)]
Bugfix. r1018 caused wrong answers. It left out a case needed for booth recoding.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1021
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trevor_hansen [Sun, 12 Sep 2010 13:55:09 +0000 (13:55 +0000)]
Speedup. Add bvconcat normalisation. Break bvconcat apart sometimes.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1020
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trevor_hansen [Sun, 12 Sep 2010 13:25:39 +0000 (13:25 +0000)]
Bugfix. The prior checkin cleaned up too much. Sometimes we need false things around.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1019
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trevor_hansen [Sun, 12 Sep 2010 12:36:04 +0000 (12:36 +0000)]
Cleanup. Removes some clauses that must be "false".
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1018
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trevor_hansen [Sun, 12 Sep 2010 12:31:57 +0000 (12:31 +0000)]
Fix. Output the statistics for simplifying minisat.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1017
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trevor_hansen [Fri, 10 Sep 2010 14:43:26 +0000 (14:43 +0000)]
When encoding to CNF via ABC, use the simple mapping if there are more than 10M nodes. This is because currently ABC seems to have a 4GB memory limit internally. So any more than about 10M nodes maxes out the memory.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1016
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trevor_hansen [Wed, 8 Sep 2010 02:46:59 +0000 (02:46 +0000)]
Adds a Userflag to control whether the xor solver is enabled.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1015
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trevor_hansen [Tue, 7 Sep 2010 14:21:46 +0000 (14:21 +0000)]
Bugfix to the prior revision. Solving for 2 operand XORs didn't work properly.
Better simplifications. The xor solver now matches negated symbols too. The attached test case now simplifies down.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1014
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trevor_hansen [Tue, 7 Sep 2010 13:09:42 +0000 (13:09 +0000)]
Experimental. Convert IFF to XOR during simplification. This causes XORs of the attached unit test to flatten further.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1013
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vijay_ganesh [Fri, 3 Sep 2010 19:11:53 +0000 (19:11 +0000)]
aligned the STP help printout (-h option). It is easier to read now.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1012
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vijay_ganesh [Fri, 3 Sep 2010 19:09:47 +0000 (19:09 +0000)]
aligned the STP help printout (-h option). It is easier to read now.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1011
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trevor_hansen [Tue, 31 Aug 2010 14:43:53 +0000 (14:43 +0000)]
Fresh variables created for internal uses, for instance to replace READs during abstraction/refinement. Are now better tracked so that they can be ignored when the model is printed.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1010
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trevor_hansen [Tue, 31 Aug 2010 14:07:37 +0000 (14:07 +0000)]
Update the comments to match the last commit
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1009
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trevor_hansen [Tue, 31 Aug 2010 13:59:43 +0000 (13:59 +0000)]
Fix to the bvsolver. Some cases were missing when identifying monomials.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1008
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trevor_hansen [Sun, 29 Aug 2010 12:24:44 +0000 (12:24 +0000)]
Bugfix in cbitp. Currently not enabled.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1007
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trevor_hansen [Sat, 28 Aug 2010 13:54:54 +0000 (13:54 +0000)]
Fix error in experimental constant bit propagation code
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1005
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trevor_hansen [Sat, 28 Aug 2010 12:57:55 +0000 (12:57 +0000)]
Bugfix. Memory was sometimes read after it had been freed by the garbage collector
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1004
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trevor_hansen [Sat, 28 Aug 2010 03:01:26 +0000 (03:01 +0000)]
Fix. I thought the code I checked-in just now wasn't active. But it was. This patch adds a flag to disable the prior patch.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1003
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trevor_hansen [Sat, 28 Aug 2010 02:52:36 +0000 (02:52 +0000)]
Changes to inactive by default code.
This patch makes the term-level simplifier, the bit-blaster and the constant bit propagation co-operate during simplification. If the cbitp or the bitblaster discover a new constant. Then the term-level simplifier will be re-ran.
I haven't experimented whether this is useful yet.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1002
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trevor_hansen [Sun, 22 Aug 2010 07:18:30 +0000 (07:18 +0000)]
Remove some assertion checks from code that's not enabled by default.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@1000
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trevor_hansen [Sun, 22 Aug 2010 06:43:22 +0000 (06:43 +0000)]
Bugfix. STP returned the wrong answer when something like bitwidth of 1: (0 = (1+1)) made it to the bitblaster. Simplifying terms collapses (as we do now), collapses this down to (0 =0) which returns the correct answer. The bitvector solver didn't expect to see two constant in a plus.
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@998
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vijay_ganesh [Sat, 21 Aug 2010 19:57:59 +0000 (19:57 +0000)]
minor changes to INSTALL instructions
git-svn-id: https://stp-fast-prover.svn.sourceforge.net/svnroot/stp-fast-prover/trunk/stp@997
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