qdimacs_core.h

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/*******************************************************************\
 
Module:
 
Author: CM Wintersteiger
 
\*******************************************************************/
 
 
#ifndef CPROVER_SOLVERS_QBF_QDIMACS_CORE_H
#define CPROVER_SOLVERS_QBF_QDIMACS_CORE_H
 
#include <map>
 
#include <util/expr.h>
 
#include "qdimacs_cnf.h"
 
class qdimacs_coret:public qdimacs_cnft
{
public:
  explicit qdimacs_coret(message_handlert &message_handler)
    : qdimacs_cnft(message_handler)
  {
  }
 
  virtual tvt l_get(literalt a) const=0;
  virtual bool is_in_core(literalt l) const=0;
 
  enum modeltypet { M_TRUE, M_FALSE, M_DONTCARE, M_COMPLEX };
  virtual modeltypet m_get(literalt a) const=0;
 
  typedef std::pair<exprt, unsigned> symbol_mapt;
  typedef std::map<unsigned, symbol_mapt> variable_mapt;
  variable_mapt variable_map;  // variable -> symbol/index map
  virtual const exprt f_get(literalt v)=0;
 
  void simplify_extractbits(exprt &expr) const;
};
 
#endif // CPROVER_SOLVERS_QBF_QDIMACS_CORE_H