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+/*********************                                                        */
+/*! \file ce_guided_instantiation.h
+ ** \verbatim
+ ** Top contributors (to current version):
+ **   Andrew Reynolds, Tim King
+ ** This file is part of the CVC4 project.
+ ** Copyright (c) 2009-2017 by the authors listed in the file AUTHORS
+ ** in the top-level source directory) and their institutional affiliations.
+ ** All rights reserved.  See the file COPYING in the top-level source
+ ** directory for licensing information.\endverbatim
+ **
+ ** \brief counterexample guided instantiation class
+ **/
+
+#include "cvc4_private.h"
+
+#ifndef __CVC4__THEORY__QUANTIFIERS__CE_GUIDED_INSTANTIATION_H
+#define __CVC4__THEORY__QUANTIFIERS__CE_GUIDED_INSTANTIATION_H
+
+#include "context/cdhashmap.h"
+#include "theory/quantifiers/sygus/ce_guided_conjecture.h"
+#include "theory/quantifiers_engine.h"
+
+namespace CVC4 {
+namespace theory {
+namespace quantifiers {
+
+class CegInstantiation : public QuantifiersModule
+{
+  typedef context::CDHashMap<Node, bool, NodeHashFunction> NodeBoolMap;
+private:
+  /** the quantified formula stating the synthesis conjecture */
+  CegConjecture * d_conj;
+  /** last instantiation by single invocation module? */
+  bool d_last_inst_si;
+private: //for direct evaluation
+  /** get refinement evaluation */
+  void getCRefEvaluationLemmas( CegConjecture * conj, std::vector< Node >& vs, std::vector< Node >& ms, std::vector< Node >& lems );
+private:
+  /** check conjecture */
+  void checkCegConjecture( CegConjecture * conj );
+public:
+  CegInstantiation( QuantifiersEngine * qe, context::Context* c );
+  ~CegInstantiation();
+public:
+  bool needsCheck( Theory::Effort e );
+  QEffort needsModel(Theory::Effort e);
+  /* Call during quantifier engine's check */
+  void check(Theory::Effort e, QEffort quant_e);
+  /* Called for new quantifiers */
+  void registerQuantifier( Node q );
+  /** get the next decision request */
+  Node getNextDecisionRequest( unsigned& priority );
+  /** Identify this module (for debugging, dynamic configuration, etc..) */
+  std::string identify() const { return "CegInstantiation"; }
+  /** print solution for synthesis conjectures */
+  void printSynthSolution( std::ostream& out );
+  /** get synth solutions
+   *
+   * This function adds entries to sol_map that map functions-to-synthesize
+   * with their solutions, for all active conjectures (currently just the one
+   * assigned to d_conj). This should be called immediately after the solver
+   * answers unsat for sygus input.
+   *
+   * For details on what is added to sol_map, see
+   * CegConjecture::getSynthSolutions.
+   */
+  void getSynthSolutions(std::map<Node, Node>& sol_map);
+  /** preregister assertion (before rewrite) */
+  void preregisterAssertion( Node n );
+public:
+  class Statistics {
+  public:
+    IntStat d_cegqi_lemmas_ce;
+    IntStat d_cegqi_lemmas_refine;
+    IntStat d_cegqi_si_lemmas;
+    IntStat d_solutions;
+    IntStat d_candidate_rewrites_print;
+    IntStat d_candidate_rewrites;
+    Statistics();
+    ~Statistics();
+  };/* class CegInstantiation::Statistics */
+  Statistics d_statistics;
+}; /* class CegInstantiation */
+
+} /* namespace CVC4::theory::quantifiers */
+} /* namespace CVC4::theory */
+} /* namespace CVC4 */
+
+#endif