LCOV - code coverage report
Current view: top level - buildbot/coverage/build/src/theory/quantifiers - inst_match.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 3 0.0 %
Date: 2025-02-14 14:34:19 Functions: 0 1 0.0 %
Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /******************************************************************************
       2                 :            :  * Top contributors (to current version):
       3                 :            :  *   Andrew Reynolds, Morgan Deters, Aina Niemetz
       4                 :            :  *
       5                 :            :  * This file is part of the cvc5 project.
       6                 :            :  *
       7                 :            :  * Copyright (c) 2009-2025 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                 :            :  * Inst match class.
      14                 :            :  */
      15                 :            : 
      16                 :            : #include "cvc5_private.h"
      17                 :            : 
      18                 :            : #ifndef CVC5__THEORY__QUANTIFIERS__INST_MATCH_H
      19                 :            : #define CVC5__THEORY__QUANTIFIERS__INST_MATCH_H
      20                 :            : 
      21                 :            : #include <vector>
      22                 :            : 
      23                 :            : #include "expr/node.h"
      24                 :            : #include "smt/env_obj.h"
      25                 :            : #include "theory/quantifiers/ieval/inst_evaluator.h"
      26                 :            : 
      27                 :            : namespace cvc5::internal {
      28                 :            : namespace theory {
      29                 :            : namespace quantifiers {
      30                 :            : 
      31                 :            : class QuantifiersState;
      32                 :            : class TermRegistry;
      33                 :            : 
      34                 :            : /** Inst match
      35                 :            :  *
      36                 :            :  * This is the basic class specifying an instantiation. Its domain size (the
      37                 :            :  * size of d_vals) is the number of bound variables of the quantified formula
      38                 :            :  * that is passed to its constructor.
      39                 :            :  *
      40                 :            :  * The values of d_vals may be null, which indicate that the field has
      41                 :            :  * yet to be initialized.
      42                 :            :  */
      43                 :            : class InstMatch : protected EnvObj
      44                 :            : {
      45                 :            :  public:
      46                 :            :   InstMatch(Env& env, QuantifiersState& qs, TermRegistry& tr, TNode q);
      47                 :            :   /**
      48                 :            :    * Set evaluator mode. This can be modified if there are no variable
      49                 :            :    * assignments.
      50                 :            :    */
      51                 :            :   void setEvaluatorMode(ieval::TermEvaluatorMode tev);
      52                 :            :   /** is this complete, i.e. are all fields non-null? */
      53                 :            :   bool isComplete() const;
      54                 :            :   /** is this empty, i.e. are all fields the null node? */
      55                 :            :   bool empty() const;
      56                 :            :   /**
      57                 :            :    * Clear the instantiation, i.e. set all fields to the null node.
      58                 :            :    * Note that this does not clear information regarding the instantiation
      59                 :            :    * evaluator, e.g. its evaluation mode and watched information.
      60                 :            :    */
      61                 :            :   void resetAll();
      62                 :            :   /** debug print method */
      63                 :            :   void debugPrint(const char* c);
      64                 :            :   /** to stream */
      65                 :            :   void toStream(std::ostream& out) const;
      66                 :            :   /** get the i^th term in the instantiation */
      67                 :            :   Node get(size_t i) const;
      68                 :            :   /** set the i^th term in the instantiation to n
      69                 :            :    *
      70                 :            :    * If the d_vals[i] is not null, then this return true iff it is equal to
      71                 :            :    * n based on the quantifiers state.
      72                 :            :    *
      73                 :            :    * If the d_vals[i] is null, then this sets d_vals[i] to n, and pushes a
      74                 :            :    * context scope in the inst evaluator (if used).
      75                 :            :    */
      76                 :            :   bool set(size_t i, TNode n);
      77                 :            :   /**
      78                 :            :    * Resets index i, which sets d_vals[i] to null, and pops a context scope in
      79                 :            :    * the inst evaluator (if used).
      80                 :            :    */
      81                 :            :   void reset(size_t i);
      82                 :            :   /** Get the values */
      83                 :            :   const std::vector<Node>& get() const;
      84                 :            : 
      85                 :            :  private:
      86                 :            :   /** Reference to the state */
      87                 :            :   QuantifiersState& d_qs;
      88                 :            :   /** Reference to the term registry */
      89                 :            :   TermRegistry& d_tr;
      90                 :            :   /**
      91                 :            :    * Ground terms for each variable of the quantified formula, in order.
      92                 :            :    * Null nodes indicate the variable has not been set.
      93                 :            :    */
      94                 :            :   std::vector<Node> d_vals;
      95                 :            :   /** The quantified formula */
      96                 :            :   Node d_quant;
      97                 :            :   /** The instantiation evaluator */
      98                 :            :   ieval::InstEvaluator* d_ieval;
      99                 :            : };
     100                 :            : 
     101                 :          0 : inline std::ostream& operator<<(std::ostream& out, const InstMatch& m) {
     102                 :          0 :   m.toStream(out);
     103                 :          0 :   return out;
     104                 :            : }
     105                 :            : 
     106                 :            : }  // namespace quantifiers
     107                 :            : }  // namespace theory
     108                 :            : }  // namespace cvc5::internal
     109                 :            : 
     110                 :            : #endif /* CVC5__THEORY__QUANTIFIERS__INST_MATCH_H */

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