src/theory/quantifiers/fmf/model_builder.h

   1 /******************************************************************************
   2  * Top contributors (to current version):
   3  *   Andrew Reynolds, Mathias Preiner, Gereon Kremer
   4  *
   5  * This file is part of the cvc5 project.
   6  *
   7  * Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
   8  * in the top-level source directory and their institutional affiliations.
   9  * All rights reserved.  See the file COPYING in the top-level source
  10  * directory for licensing information.
  11  * ****************************************************************************
  12  *
  13  * Model Builder class.
  14  */
  15
  16 #include "cvc5_private.h"
  17
  18 #ifndef CVC5__THEORY__QUANTIFIERS__MODEL_BUILDER_H
  19 #define CVC5__THEORY__QUANTIFIERS__MODEL_BUILDER_H
  20
  21 #include "expr/node.h"
  22 #include "theory/quantifiers/inst_match.h"
  23 #include "theory/theory_model_builder.h"
  24
  25 namespace cvc5 {
  26 namespace theory {
  27 namespace quantifiers {
  28
  29 class FirstOrderModel;
  30 class QuantifiersState;
  31 class QuantifiersRegistry;
  32 class QuantifiersInferenceManager;
  33 class TermRegistry;
  34
  35 class QModelBuilder : public TheoryEngineModelBuilder
  36 {
  37  protected:
  38   // must call preProcessBuildModelStd
  39   bool preProcessBuildModel(TheoryModel* m) override;
  40   bool preProcessBuildModelStd(TheoryModel* m);
  41   /** number of lemmas generated while building model */
  42   unsigned d_addedLemmas;
  43   unsigned d_triedLemmas;
  44
  45  public:
  46   QModelBuilder(QuantifiersState& qs,
  47                 QuantifiersInferenceManager& qim,
  48                 QuantifiersRegistry& qr,
  49                 TermRegistry& tr);
  50   /** finish init, which sets the model object */
  51   virtual void finishInit();
  52   //do exhaustive instantiation
  53   // 0 :  failed, but resorting to true exhaustive instantiation may work
  54   // >0 : success
  55   // <0 : failed
  56   virtual int doExhaustiveInstantiation( FirstOrderModel * fm, Node f, int effort ) { return false; }
  57   //whether to construct model
  58   virtual bool optUseModel();
  59   //debug model
  60   void debugModel(TheoryModel* m) override;
  61   //statistics
  62   unsigned getNumAddedLemmas() { return d_addedLemmas; }
  63   unsigned getNumTriedLemmas() { return d_triedLemmas; }
  64   /** get the model we are using */
  65   FirstOrderModel* getModel();
  66
  67  protected:
  68   /** The quantifiers state object */
  69   QuantifiersState& d_qstate;
  70   /** The quantifiers inference manager */
  71   QuantifiersInferenceManager& d_qim;
  72   /** Reference to the quantifiers registry */
  73   QuantifiersRegistry& d_qreg;
  74   /** Term registry */
  75   TermRegistry& d_treg;
  76   /** Pointer to the model object we are using */
  77   FirstOrderModel* d_model;
  78   /** The model object we have allocated */
  79   std::unique_ptr<FirstOrderModel> d_modelAloc;
  80 };
  81
  82 }  // namespace quantifiers
  83 }  // namespace theory
  84 }  // namespace cvc5
  85
  86 #endif /* CVC5__THEORY__QUANTIFIERS__MODEL_BUILDER_H */