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/********************* -*- C++ -*- */
/** prop_engine.h
** This file is part of the CVC4 prototype.
** Copyright (c) 2009 The Analysis of Computer Systems Group (ACSys)
** Courant Institute of Mathematical Sciences
** New York University
** See the file COPYING in the top-level source directory for licensing
** information.
**
**/
#ifndef __CVC4__PROP_ENGINE_H
#define __CVC4__PROP_ENGINE_H
#include "cvc4_config.h"
#include "expr/node.h"
#include "util/decision_engine.h"
#include "theory/theory_engine.h"
#include "prop/minisat/simp/SimpSolver.h"
#include "prop/minisat/core/SolverTypes.h"
#include <map>
namespace CVC4 {
// In terms of abstraction, this is below (and provides services to)
// Prover and above (and requires the services of) a specific
// propositional solver, DPLL or otherwise.
class PropEngine {
DecisionEngine &d_de;
TheoryEngine &d_te;
CVC4::prop::minisat::SimpSolver d_sat;
std::map<Node, CVC4::prop::minisat::Var> d_vars;
std::map<CVC4::prop::minisat::Var, Node> d_varsReverse;
void addVars(Node);
public:
/**
* Create a PropEngine with a particular decision and theory engine.
*/
CVC4_PUBLIC PropEngine(CVC4::DecisionEngine&, CVC4::TheoryEngine&);
/**
* Converts to CNF if necessary.
*/
void solve(Node);
};/* class PropEngine */
}/* CVC4 namespace */
#endif /* __CVC4__PROP_ENGINE_H */
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