prop.cpp

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/*******************************************************************\
 
Module:
 
Author: Daniel Kroening, kroening@kroening.com
 
\*******************************************************************/
 
#include "prop.h"
 
void propt::set_equal(literalt a, literalt b)
{
  if(b.is_constant())
  {
    if(b.is_true())
      lcnf({a});
    else
      lcnf({!a});
 
    return;
  }
 
  lcnf(a, !b);
  lcnf(!a, b);
}
 
bvt propt::new_variables(std::size_t width)
{
  bvt result;
  result.reserve(width);
  for(std::size_t i=0; i<width; i++)
    result.push_back(new_variable());
  return result;
}
 
propt::resultt propt::prop_solve()
{
  static const bvt empty_assumptions;
  ++number_of_solver_calls;
  return do_prop_solve(empty_assumptions);
}
 
propt::resultt propt::prop_solve(const bvt &assumptions)
{
  ++number_of_solver_calls;
  return do_prop_solve(assumptions);
}
 
std::size_t propt::get_number_of_solver_calls() const
{
  return number_of_solver_calls;
}