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path: root/src/prop/sat.cpp
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2010-08-16Fixing failures in minisatDejan Jovanović
2010-07-10Fix for the type in sat propagation.Dejan Jovanović
2010-07-02re-generated comment headers of source filesMorgan Deters
2010-06-30* theory "tree" rewriting implemented and worksMorgan Deters
* added TheoryArith::preRewrite() to test and demonstrate the use of pre-rewriting. * array types and type checking now supported * array type checking now supported * theoryOf() dispatching properly to arrays now * theories now required to implement a (simple) identify() function that returns a string identifying them for debugging/user output purposes * added "builtin" theory to hold all built-in kinds and their type rules and rewriting (currently only exploding distinct) * fixed production build failure (regarding NodeSetDepth) * removed an errant "using namespace std" in util/bitvector.h (and made associated trivial fixes elsewhere) * fixes to make unexpected exceptions more verbose in debug builds * fixes to make multiple, cascading assertion fails simpler * minor other fixes to comments etc.
2010-06-29Merging the unate-propagator branch into the trunk. This is a big update so ↵Tim King
expect a little turbulence. This commit will not compile. There will be a second commit that fixes this in a moment. I am delaying a change to avoid svn whining about a conflict.
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.
2010-05-25Some 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
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