C++ TypeNode::isInteger方法代码示例

bool InstantiationEngine::hasNonArithmeticVariable( Node f ){
  for( int i=0; i<(int)f[0].getNumChildren(); i++ ){
    TypeNode tn = f[0][i].getType();
    if( !tn.isInteger() && !tn.isReal() ){
      return true;
    }
  }
  return false;
}

bool InstStrategyCbqi::hasNonCbqiVariable( Node q ){
  for( unsigned i=0; i<q[0].getNumChildren(); i++ ){
    TypeNode tn = q[0][i].getType();
    if( !tn.isInteger() && !tn.isReal() && !tn.isBoolean() ){
      if( options::cbqiSplx() ){
        return true;
      }else{
        //datatypes supported in new implementation
        if( !tn.isDatatype() ){
          return true;
        }
      }
    }
  }
  return false;
}

Node TermDb::getFreeVariableForInstConstant( Node n ){
  TypeNode tn = n.getType();
  if( d_free_vars.find( tn )==d_free_vars.end() ){
    //if integer or real, make zero
    if( tn.isInteger() || tn.isReal() ){
      Rational z(0);
      d_free_vars[tn] = NodeManager::currentNM()->mkConst( z );
    }else{
      if( d_type_map[ tn ].empty() ){
        d_free_vars[tn] = NodeManager::currentNM()->mkSkolem( "freevar_$$", tn, "is a free variable created by termdb" );
        Trace("mkVar") << "FreeVar:: Make variable " << d_free_vars[tn] << " : " << tn << std::endl;
      }else{
        d_free_vars[tn] = d_type_map[ tn ][ 0 ];
      }
    }
  }
  return d_free_vars[tn];
}

void ModelEngine::registerQuantifier( Node f ){
  if( Trace.isOn("fmf-warn") ){
    bool canHandle = true;
    for( unsigned i=0; i<f[0].getNumChildren(); i++ ){
      TypeNode tn = f[0][i].getType();
      if( !tn.isSort() ){
        if( !tn.getCardinality().isFinite() ){
          if( tn.isInteger() ){
            if( !options::fmfBoundInt() ){
              canHandle = false;
            }
          }else{
            canHandle = false;
          }
        }
      }
    }
    if( !canHandle ){
      Trace("fmf-warn") << "Warning : Model Engine : may not be able to answer SAT because of formula : " << f << std::endl;
    }
  }
}

bool RepSetIterator::initialize(){
  for( size_t i=0; i<d_types.size(); i++ ){
    d_index.push_back( 0 );
    //store default index order
    d_index_order.push_back( i );
    d_var_order[i] = i;
    //store default domain
    d_domain.push_back( RepDomain() );
    TypeNode tn = d_types[i];
    if( tn.isSort() ){
      if( !d_rep_set->hasType( tn ) ){
        Node var = NodeManager::currentNM()->mkSkolem( "repSet", tn, "is a variable created by the RepSetIterator" );
        Trace("mkVar") << "RepSetIterator:: Make variable " << var << " : " << tn << std::endl;
        d_rep_set->add( tn, var );
      }
    }else if( tn.isInteger() ){
      bool inc = false;
      //check if it is bound
      if( d_owner.getKind()==FORALL && d_qe && d_qe->getBoundedIntegers() ){
        if( d_qe->getBoundedIntegers()->isBoundVar( d_owner, d_owner[0][i] ) ){
          Trace("bound-int-rsi") << "Rep set iterator: variable #" << i << " is bounded integer." << std::endl;
          d_enum_type.push_back( ENUM_RANGE );
        }else{
          inc = true;
        }
      }else{
        inc = true;
      }
      if( inc ){
        //check if it is otherwise bound
        if( d_bounds[0].find(i)!=d_bounds[0].end() && d_bounds[1].find(i)!=d_bounds[1].end() ){
          Trace("bound-int-rsi") << "Rep set iterator: variable #" << i << " is bounded." << std::endl;
          d_enum_type.push_back( ENUM_RANGE );
        }else{
          Trace("fmf-incomplete") << "Incomplete because of integer quantification of " << d_owner[0][i] << "." << std::endl;
          d_incomplete = true;
        }
      }
    //enumerate if the sort is reasonably small, the upper bound of 1000 is chosen arbitrarily for now
    }else if( tn.getCardinality().isFinite() && !tn.getCardinality().isLargeFinite() &&
              tn.getCardinality().getFiniteCardinality().toUnsignedInt()<=1000 ){
      d_rep_set->complete( tn );
    }else{
      Trace("fmf-incomplete") << "Incomplete because of quantification of type " << tn << std::endl;
      d_incomplete = true;
    }
    if( d_enum_type.size()<=i ){
      d_enum_type.push_back( ENUM_DOMAIN_ELEMENTS );
      if( d_rep_set->hasType( tn ) ){
        for( size_t j=0; j<d_rep_set->d_type_reps[tn].size(); j++ ){
          d_domain[i].push_back( j );
        }
      }else{
        return false;
      }
    }
  }
  //must set a variable index order based on bounded integers
  if (d_owner.getKind()==FORALL && d_qe && d_qe->getBoundedIntegers()) {
    Trace("bound-int-rsi") << "Calculating variable order..." << std::endl;
    std::vector< int > varOrder;
    for( unsigned i=0; i<d_qe->getBoundedIntegers()->getNumBoundVars(d_owner); i++ ){
      varOrder.push_back(d_qe->getBoundedIntegers()->getBoundVarNum(d_owner,i));
    }
    for( unsigned i=0; i<d_owner[0].getNumChildren(); i++) {
      if( !d_qe->getBoundedIntegers()->isBoundVar(d_owner, d_owner[0][i])) {
        varOrder.push_back(i);
      }
    }
    Trace("bound-int-rsi") << "Variable order : ";
    for( unsigned i=0; i<varOrder.size(); i++) {
      Trace("bound-int-rsi") << varOrder[i] << " ";
    }
    Trace("bound-int-rsi") << std::endl;
    std::vector< int > indexOrder;
    indexOrder.resize(varOrder.size());
    for( unsigned i=0; i<varOrder.size(); i++){
      indexOrder[varOrder[i]] = i;
    }
    Trace("bound-int-rsi") << "Will use index order : ";
    for( unsigned i=0; i<indexOrder.size(); i++) {
      Trace("bound-int-rsi") << indexOrder[i] << " ";
    }
    Trace("bound-int-rsi") << std::endl;
    setIndexOrder(indexOrder);
  }
  //now reset the indices
  for (unsigned i=0; i<d_index.size(); i++) {
    if (!resetIndex(i, true)){
      break;
    }
  }
  return true;
}