Merge from quantifiers2-trunkmerge branch.

Adds TheoryQuantifiers and TheoryRewriteRules, QuantifiersEngine, and other infrastructure.

Adds theory instantiators to many theories.

Adds the UF strong solver.

1 files changed, 77 insertions, 0 deletions

diff --git a/src/theory/quantifiers/theory_quantifiers.h b/src/theory/quantifiers/theory_quantifiers.h
new file mode 100644
index 000000000..05c3b9695
--- /dev/null
+++ b/src/theory/quantifiers/theory_quantifiers.h
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+/*********************                                                        */
+/*! \file theory_quantifiers.h
+ ** \verbatim
+ ** Original author: ajreynol
+ ** Major contributors: none
+ ** Minor contributors (to current version): none
+ ** This file is part of the CVC4 prototype.
+ ** Copyright (c) 2009, 2010, 2011  The Analysis of Computer Systems Group (ACSys)
+ ** Courant Institute of Mathematical Sciences
+ ** New York University
+ ** See the file COPYING in the top-level source directory for licensing
+ ** information.\endverbatim
+ **
+ ** \brief Theory of quantifiers.
+ **
+ ** Theory of quantifiers.
+ **/
+
+#include "cvc4_private.h"
+
+#ifndef __CVC4__THEORY__QUANTIFIERS__THEORY_QUANTIFIERS_H
+#define __CVC4__THEORY__QUANTIFIERS__THEORY_QUANTIFIERS_H
+
+#include "theory/theory.h"
+#include "util/hash.h"
+#include "util/stats.h"
+
+#include <ext/hash_set>
+#include <iostream>
+#include <map>
+
+namespace CVC4 {
+namespace theory {
+namespace quantifiers {
+
+class TheoryEngine;
+
+class TheoryQuantifiers : public Theory {
+private:
+  typedef context::CDHashMap< Node, bool, NodeHashFunction > BoolMap;
+  /** quantifiers that have been skolemized */
+  std::map< Node, bool > d_skolemized;
+  /** number of instantiations */
+  int d_numInstantiations;
+  int d_baseDecLevel;
+  /** number of restarts */
+  int d_numRestarts;
+
+  KEEP_STATISTIC(TimerStat, d_theoryTime, "theory::quantifiers::theoryTime");
+
+public:
+  TheoryQuantifiers(context::Context* c, context::UserContext* u, OutputChannel& out, Valuation valuation, const LogicInfo& logicInfo, QuantifiersEngine* qe);
+  ~TheoryQuantifiers();
+
+  void addSharedTerm(TNode t);
+  void notifyEq(TNode lhs, TNode rhs);
+  void preRegisterTerm(TNode n);
+  void presolve();
+  void check(Effort e);
+  void propagate(Effort level);
+  Node getValue(TNode n);
+  void shutdown() { }
+  std::string identify() const { return std::string("TheoryQuantifiers"); }
+  bool flipDecision();
+private:
+  void assertUniversal( Node n );
+  void assertExistential( Node n );
+  bool restart();
+public:
+  void performCheck(Effort e);
+};/* class TheoryQuantifiers */
+
+}/* CVC4::theory::quantifiers namespace */
+}/* CVC4::theory namespace */
+}/* CVC4 namespace */
+
+#endif /* __CVC4__THEORY__QUANTIFIERS__THEORY_QUANTIFIERS_H */