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/********************* */
/*! \file result.h
** \verbatim
** Top contributors (to current version):
** Morgan Deters, Tim King, Aina Niemetz
** This file is part of the CVC4 project.
** Copyright (c) 2009-2020 by the authors listed in the file AUTHORS
** in the top-level source directory) and their institutional affiliations.
** All rights reserved. See the file COPYING in the top-level source
** directory for licensing information.\endverbatim
**
** \brief Encapsulation of the result of a query.
**
** Encapsulation of the result of a query.
**/
#include "cvc4_public.h"
#ifndef CVC4__RESULT_H
#define CVC4__RESULT_H
#include <iostream>
#include <string>
#include "base/exception.h"
#include "options/language.h"
namespace CVC4 {
class Result;
std::ostream& operator<<(std::ostream& out, const Result& r) CVC4_PUBLIC;
/**
* Three-valued SMT result, with optional explanation.
*/
class CVC4_PUBLIC Result {
public:
enum Sat { UNSAT = 0, SAT = 1, SAT_UNKNOWN = 2 };
enum Entailment
{
NOT_ENTAILED = 0,
ENTAILED = 1,
ENTAILMENT_UNKNOWN = 2
};
enum Type
{
TYPE_SAT,
TYPE_ENTAILMENT,
TYPE_NONE
};
enum UnknownExplanation {
REQUIRES_FULL_CHECK,
INCOMPLETE,
TIMEOUT,
RESOURCEOUT,
MEMOUT,
INTERRUPTED,
NO_STATUS,
UNSUPPORTED,
OTHER,
UNKNOWN_REASON
};
private:
enum Sat d_sat;
enum Entailment d_entailment;
enum Type d_which;
enum UnknownExplanation d_unknownExplanation;
std::string d_inputName;
public:
Result();
Result(enum Sat s, std::string inputName = "");
Result(enum Entailment v, std::string inputName = "");
Result(enum Sat s, enum UnknownExplanation unknownExplanation,
std::string inputName = "");
Result(enum Entailment v,
enum UnknownExplanation unknownExplanation,
std::string inputName = "");
Result(const std::string& s, std::string inputName = "");
Result(const Result& r, std::string inputName) {
*this = r;
d_inputName = inputName;
}
enum Sat isSat() const { return d_which == TYPE_SAT ? d_sat : SAT_UNKNOWN; }
enum Entailment isEntailed() const
{
return d_which == TYPE_ENTAILMENT ? d_entailment : ENTAILMENT_UNKNOWN;
}
bool isUnknown() const {
return isSat() == SAT_UNKNOWN && isEntailed() == ENTAILMENT_UNKNOWN;
}
Type getType() const { return d_which; }
bool isNull() const { return d_which == TYPE_NONE; }
enum UnknownExplanation whyUnknown() const;
bool operator==(const Result& r) const;
inline bool operator!=(const Result& r) const;
Result asSatisfiabilityResult() const;
Result asEntailmentResult() const;
std::string toString() const;
std::string getInputName() const { return d_inputName; }
/**
* Write a Result out to a stream in this language.
*/
void toStream(std::ostream& out, OutputLanguage language) const;
/**
* This is mostly the same the default
* If getType() == Result::TYPE_SAT && isSat() == Result::SAT_UNKNOWN,
*
*/
void toStreamSmt2(std::ostream& out) const;
/**
* Write a Result out to a stream in the Tptp format
*/
void toStreamTptp(std::ostream& out) const;
/**
* Write a Result out to a stream.
*
* The default implementation writes a reasonable string in lowercase
* for sat, unsat, entailed, not entailed, or unknown results. This behavior
* is overridable by each Printer, since sometimes an output language
* has a particular preference for how results should appear.
*/
void toStreamDefault(std::ostream& out) const;
}; /* class Result */
inline bool Result::operator!=(const Result& r) const { return !(*this == r); }
std::ostream& operator<<(std::ostream& out, enum Result::Sat s) CVC4_PUBLIC;
std::ostream& operator<<(std::ostream& out,
enum Result::Entailment e) CVC4_PUBLIC;
std::ostream& operator<<(std::ostream& out,
enum Result::UnknownExplanation e) CVC4_PUBLIC;
bool operator==(enum Result::Sat s, const Result& r) CVC4_PUBLIC;
bool operator==(enum Result::Entailment e, const Result& r) CVC4_PUBLIC;
bool operator!=(enum Result::Sat s, const Result& r) CVC4_PUBLIC;
bool operator!=(enum Result::Entailment e, const Result& r) CVC4_PUBLIC;
} /* CVC4 namespace */
#endif /* CVC4__RESULT_H */
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