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path: root/src/prop/prop_engine.cpp
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2012-03-26More cleaning up.Dejan Jovanović
2012-03-25sat_module.h,cpp -> sat_solver.h,cpp (as intended)Dejan Jovanović
2012-03-25sat.h,cpp -> theory_proxy.h,cpp (this is what it defines)Dejan Jovanović
2012-03-09Some work on the dump infrastructure to support portfolio work.Morgan Deters
Dump("foo") << FooCommand(...); now "dumps" the textual representation of the command (in the current output language) to a file, IF dumping is on at configure-time, AND the "muzzle" feature is off, AND the "foo" flag is turned on for the dump stream during this run. If it's a portfolio build, the above will also store the command in a CommandSequence, IF the "foo" flag is turned on for the dump stream during this run. This is done even if the muzzle is on. This commit also cleans up some code that used the dump feature (in arrays, particularly).
2012-03-01Partial merge from kind-backend branch, including Minisat and CNF work toMorgan Deters
support incrementality. Some clean-up work will likely follow, but the CNF/Minisat stuff should be left pretty much untouched. Expected performance change negligible; slightly better on memory: http://church.cims.nyu.edu/regress-results/compare_jobs.php?job_id=3705&reference_id=3697&mode=&category=&p=5 Note that there are crashes, but that these are exhibited in the nightly regression run too!
2012-02-25Refactored CnfStream to work with the bv theory Bitblaster:Liana Hadarean
* separated SatSolverInput interface class into two classes: - TheoryProxy for the sat solver to communicate with the theories - SatSolverInterface abstract class to communicate with the sat solver * instead of using #ifdef typedef for SatClauses and SatLiterals, now there are CVC4 SatLiteral/SatClause types and mappings between them and the internal sat solver clause/literal representation * added abstract classes for DPLLSatSolver and BVSatSolver different interfaces Replaced TheoryBV with bitblasting implementation: * all operators bitblasted * only operator elimination rewrite rules so far
2012-02-20fix sharing issue for portfolio (full lit-to-node map wasn't being kept in ↵Morgan Deters
my previous checkin)
2011-11-29Merging the branch branches/arithmetic/shared-terms into trunk. Arithmetic ↵Tim King
now supports propagating equalities when a slack variable corresponding to a difference of shared terms must be 0. Similarly disequalities are propagated when these variables cannot be zero.
2011-11-15Bindings work (ocaml bindings are now sort of working); also minor cleanupMorgan Deters
2011-10-13Interruption, time-out, and deterministic time-out ("resource-out") features.Morgan Deters
Details here: http://goedel.cims.nyu.edu/wiki/Meeting_Minutes_-_October_14,_2011#Resource.2Ftime_limiting_API This will need more work, but it's a start. Also implemented TheoryEngine::properPropagation(). Other minor things.
2011-10-05ensureLiteral() in CNF stream to support Andy's quantifiers work; an update ↵Morgan Deters
to model gen on booleans; and a little cleanup
2011-09-30fixes to incremental simplification, cnf routines, other stuff in ↵Morgan Deters
preparation of user push/pop in SAT solver
2011-09-02Merge from my post-smtcomp branch. Includes:Morgan Deters
Dumping infrastructure. Can dump preprocessed queries and clauses. Can also dump queries (for testing with another solver) to see if any conflicts are missed, T-propagations are missed, all lemmas are T-valid, etc. For a full list of options see --dump=help. CUDD building much cleaner. Documentation and assertion fixes. Printer improvements, printing of commands in language-defined way, etc. Typechecker stuff in expr package now autogenerated, no need to manually edit the expr package when adding a new theory. CVC3 compatibility layer (builds as libcompat). SWIG detection and language binding support (infrastructure). Support for some Z3 extended commands (like datatypes) in SMT-LIBv2 mode (when not in compliance mode). Copyright and file headers regenerated.
2011-08-17new implementation of lemmas on demandDejan Jovanović
comparison <http://goedel.cims.nyu.edu/regress-results/compare_jobs.php?job_id=2673&&p=5&reference_id=2637>
2011-07-11Clark's work on array theory - can now solve all QF_AX problemsClark Barrett
2011-07-11merge from symmetry branchMorgan Deters
2011-07-09surprize surprizeDejan Jovanović
2011-07-05updated preprocessing and rewriting input equalities into inequalities for LRADejan Jovanović
2011-04-05Minor adjustments to the Registrar commit in 1644, documentation.Morgan Deters
2011-04-04Merging the satliteral-before-prereg branch into trunk. Theory ↵Tim King
preregistration is now called during the conversion to cnf. This fixes bug 257.
2011-04-01This commit is a merge from the "betterstats" branch, which:Morgan Deters
* Makes Options an "omnipresent thread-local global" (like the notion of the "current NodeManager" was already). Options::current() accesses this structure. * Removes Options from constructors and data structures everywhere (this cleans up a lot of things). * No longer uses StatisticsRegistry statically. An instance of the registry is created and linked to a NodeManager. * StatisticsRegistry::current() is similar to Options::current(), but the pointer is stowed in the NodeManager (rather than stored) * The static functions of StatisticsRegistry have been left, for backward compatibility; they now use the "current" statistics registry. * SmtEngine::getStatisticsRegistry() is a public accessor for the registry; this is needed by main() to reach in and get the registry, for flushing statistics at the end.
2011-03-31Fixes to Valuation.Tim King
2011-03-30Add Valuation::getSatValue() so that theories can access the currentMorgan Deters
(propositional) assignment for theory atoms. Fixed Debug/Trace as discussed in bug ticket #252 and on the mailing list. This implementation leads to some compiler warnings in production builds, but these will be corrected in coming days. There appears to be a small speedup in the parser as a result of this fix: http://goedel.cims.nyu.edu/regress-results/compare_jobs.php?job_id=1902&reference_id=1886&p=5 Cleaned up a few CD Boolean attribute things. Various small fixes to coding guidelines / test coverage. This commit: * Resolves bug 252 (tracing not disabled in production builds) * Resolves bug 254 (implement CDAttrHash<>::BitIterator::find())
2010-11-16Added Theory::presolve().Tim King
2010-11-15Changes to Solver and PropEngine to support lemmasOnDemand during solve but ↵Tim King
not yet in d_checkSat.
2010-11-15This commit merges the arith-prop-opt branch into the main trunk. This was ↵Tim King
done by way of the intermediate branch arith-prop-tmp. Both arith-prop-opt and arith-prop-tmp will now be phased out.
2010-11-12Some bug fixes in the SAT for lemmas, and an experiment with a more complete ↵Dejan Jovanović
(wr propagation) splitter in arithmetic.
2010-11-09Lemmas on demand work, push-pop, some cleanup.Dejan Jovanović
2010-10-22Merging main/getopt.cpp, main/usage.h, and smt/options.h inChristopher L. Conway
util/options.h,cpp
2010-10-21* Option --no-type-checking now disables type checks in SmtEngineChristopher L. Conway
* Adding options --lazy-type-checking and --eager-type-checking to control type checking in NodeBuilder, which can now be enabled in production mode and disabled in debug mode * Option --no-checking implies --no-type-checking * Adding constructor SmtEngine(ExprManager* em) that uses default options
2010-10-12hooked up "we are incomplete" flag after conversation with Tim (a theory ↵Morgan Deters
notifies the theory engine through its output channel); some cleanup; add a regression for bug #216
2010-10-10additional model gen and SMT-LIBv2 compliance work: (get-assignment) now ↵Morgan Deters
supported; work on Result type (biggest noticeable change is that CVC4 now outputs lowercase "sat" and "unsat"), Options class moved to src/smt, to allow for future work on runtime configuration via (set-option) command
2010-10-09Model generation for arith, boolean, and uf theories viaMorgan Deters
(get-value ...) SMT-LIBv2 command. As per SMT-LIBv2 spec, you must pass --interactive --produce-models on the command line (although they don't currently make us do any extra work). Closes bug #213.
2010-07-04Considerably simplified the way output streams are used. This commitMorgan Deters
should have no impact on production performance and speed up debug performance considerably, while making the code much cleaner. On some benchmarks, debug builds now run _much_ faster. We no longer have to sprinkle our code with things like: if(debugTagIsOn("context")) { Debug("context") << theContext << std::endl; } which we had to do to get around performance problems previously. Now just writing: Debug("context") << theContext << std::endl; does the same in production and debug builds. That is, if "context" debugging is off, theContext isn't converted to a string, nor is it output to a "/dev/null" ostream. I've confirmed this. In production builds, the whole statement inlines to nothing. I've confirmed this too. Also, "Debug" is no longer a #definition, so you can use it directly in production builds where you couldn't previously, e.g. if(Debug.isOn("paranoid:check_tableau")) { checkTableau(); } I'm leaving debugTagIsOn() for now, but marking it as deprecated.
2010-06-04** Don't fear the files-changed list, almost all changes are in the **Morgan Deters
** file-level documentation at the top of the sources. ** This is the "make bugzilla stop bugging me" bugfix commit. * Remove BackedNodeBuilder<> and collapse NodeBuilder<> hierarchy. Updated documentation in the file. Resolves bug #99. * Convenience NodeBuilders (PlusNodeBuilder, OrNodeBuilder, etc.) moved into a separate file. Partially resolves bug #100. * Moved isAssociative(Kind) into kind.h (and into the CVC4::kind namespace) instead of metakind.h (where it was in CVC4::metakind). This clears up a warning (private #inclusion) from the SMT and SMT2 parsers, and maybe makes more sense anyways, since this is based on the kind (and not the metakind) of an operator. * Documentation improvement; doxygen top-level \file gestures, \brief gestures for files, etc. Changed contrib/update-copyright.pl for this change, and post-processed to add \brief. Resolves bug #98. * Removed ExprManager::mkExpr(Kind) and NodeManager::mkNode(Kind). They no longer made sense. Resolves bug #91.
2010-06-01In order for splitting on demand to be able to retract clauses every ↵Dejan Jovanović
translation must indeed be a clause (if possible). I've changed the top level CNF conversion to generate clauses, instead of introducing unit clauses for each assertion.
2010-05-25Some initial changes to allow for lemmas on demand. Dejan Jovanović
To be done: * Add erasable map Clause* to bool to minisat (backtracks with the solver) * Add map from Clause* to Node (clauses that came from a node) * Add reference counting Literal -> Node to CNFManager * If Literal -> Node refcount goes to zero, the clauses of Node can be erased (if eresable) * If clause is erased for each L in clause L -> Node refcount goes down
2010-05-14Adding debugging code in PropEngine/CnfStreamChristopher L. Conway
2010-05-13Minor refactorings to PropEngine, SatSolverChristopher L. Conway
2010-03-09(no commit message)Dejan Jovanović
2010-03-08some more sat stuff for tim: assertions now go to theory_uf Dejan Jovanović
2010-03-03Some SAT stuff, not doing anything special yet, just to keep it in sync.Dejan Jovanović
2010-02-25* src/expr/node.h: add a copy constructor. Apparently GCC doesn'tMorgan Deters
recognize an instantiation of the join conversion/copy ctor with ref_count = ref_count_1 as a copy constructor. Problems with reference counts ensue. * src/theory/theory.h, src/theory/theory.cpp: Theory base implementation work. Changed from continuation-style theory calls to having an data member for the output channel. registerTerm() and preRegisterTerm() work. * src/theory/output_channel.h, src/theory/theory.h, src/theory/theory.cpp, src/theory/uf/theory_uf.h, src/theory/uf/theory_uf.cpp: merged ExplainOutputChannel into OutputChannel. * test/unit/expr/node_black.h: remove testPlusNode(), testUMinusNode(), testMultNode(). * src/expr/attribute.h: new facilities ManagedAttribute<> and CDAttribute<>, and add new template parameters to Attribute<>. Make CDAttribute<>s work with context manager. * src/expr/attribute.h, src/expr/node_manager.h: VarNameAttr and TypeAttr are now "owned" (defined) by the NodeManager. The AttributeManager knows nothing of specific attributes, it just as all the code for dealing generically with attributes. * test/unit/expr/node_white.h: test new attribute facilities. * src/expr/soft_node.h: removed: We now have TNode, so SoftNode goes away. * src/theory/Makefile.am: fixed improper linking of theories * src/theory/theory_engine.h: some implementation work (mainly stubs for now, just to make sure TheoryUF can be instantiated properly, etc.) * src/expr/node_value.cpp, src/expr/node_value.h: move a number of function implementations to the header and make them inline * src/expr/node_manager.cpp, src/expr/node_manager.h: move a number of function implementations to the header and make them inline * src/theory/theoryof_table_prologue.h, src/theory/theoryof_table_epilogue.h, src/theory/mktheoryof, src/theory/Makefile.am: make the theoryOf() table from kinds and implement TheoryEngine::theoryOf(). * src/theory/arith/Makefile, src/theory/bool/Makefile: generated these stub Makefiles (with contrib/addsourcedir) as per policy * src/theory/arith, src/theory/bool [directory properties]: add .deps to svn:ignore. * contrib/configure-in-place: permit configuring "in-place" in the source directory. * contrib/get-authors, contrib/dimacs_to_smt.pl, contrib/update-copyright.pl, contrib/get-authors, contrib/addsourcedir, src/expr/mkkind: copyright notice * src/expr/node_manager.h, src/expr/node_builder.h, src/prop/prop_engine.h, src/prop/prop_engine.cpp, src/theory/theory_engine.h, src/smt/smt_engine.h, src/smt/smt_engine.cpp, src/theory/output_channel.h: turn "const Node&"-typed formal parameters into "TNode" * src/theory/bool, src/theory/booleans: "bool" directory renamed "booleans" to avoid keyword clash on containing namespace * src/theory/booleans/theory_def.h, src/theory/uf/theory_def.h, src/theory/arith/theory_def.h: "define" a theory simply (for automatic theoryOf() generator). * src/Makefile.am: build theory subdirectory before prop, smt, etc. so that src/theory/theoryof_table.h header gets generated before it's needed * src/expr/node_prologue.h, src/expr/node_middle.h: move "Kind" into a separate CVC4::kind namespace to avoid its contents from cluttering the CVC4 root namespace. Import the symbol "Kind" into the CVC4 namespace but not the enum values. * src/expr/node_manager.h, src/expr/node.h, src/expr/node_value.h, src/expr/node_value.cpp, src/expr/expr.cpp, src/theory/uf/theory_uf.cpp, src/prop/cnf_stream.cpp, src/parser/smt/smt_parser.g, src/parser/cvc/cvc_parser.g, src/parser/antlr_parser.cpp, test/unit/expr/node_white.h, test/unit/expr/node_black.h, test/unit/expr/kind_black.h, test/unit/expr/node_builder_black.h: update for having moved Kind into CVC4::kind. * src/parser/parser.cpp: added file-does-not-exist check (was failing silently).
2010-02-22* configure.ac: Remove doc/ from search path for Makefile.amsMorgan Deters
* configure.ac, test/unit/Makefile.am: Resolved an issue where even when not testing, one unit test was built. * Re-ran contrib/update-copyright.pl on all source files to ensure consistent and correct header comments. * contrib/get-authors: Change definition of "minor contributor" to >= 10% of lines (rather than strictly greater than 10% of lines)
2010-02-09Changes to the CNF conversion and the SAT solver. All regression pass now, ↵Dejan Jovanović
and we're ready for nightly testing. We should not add regression tests that test future behaviour, as the builds will nag for all failing regressions. Thus, I've separated the multi-query regressions into multiple regressions until the cnf/context/sat is able to handle it. Also, fixed a typo in the CVC parser.
2010-02-04beautification of the prop engineDejan Jovanović
2010-02-04remove -*- c++ -*- emacs tag from source files (it overrides ↵Morgan Deters
cvc4-c++-editing-mode from contrib/editing-with-emacs
2010-02-04Changed mapping from atoms to literals in the prop engine to be atoms to vars.Tim King
2010-02-04src/expr/kind.h is now automatically generated.Morgan Deters
Build src/expr before src/util. Moved CVC4::Command to the expr package. Re-quieted the "result is sat/invalid" etc. from PropEngine (this is now done at the main driver level). Added file-level documentation to Antlr sources When built for debug, spin on SEGV instead of aborting. Really useful for debugging problems that crop up only on long runs. Added '--segv-nospin' to override this spinning so that "make check," nightly regressions, etc. don't hang when built with debug. Updated src/main/about.h for 2010.
2010-02-04minor fix for update-copyright.pl; ran update-copyright.pl on all sources; ↵Morgan Deters
regenerated configure script
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