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/********************* */
/*! \file uf_proof.h
** \verbatim
** Top contributors (to current version):
** Liana Hadarean, Mathias Preiner, Tim King
** This file is part of the CVC4 project.
** Copyright (c) 2009-2019 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 UF proof
**
** UF proof
**/
#include "cvc4_private.h"
#ifndef __CVC4__UF__PROOF_H
#define __CVC4__UF__PROOF_H
#include <memory>
#include <unordered_set>
#include "expr/expr.h"
#include "proof/theory_proof.h"
#include "theory/uf/equality_engine.h"
#include "util/proof.h"
namespace CVC4 {
// proof object outputted by TheoryUF
class ProofUF : public Proof
{
public:
ProofUF(std::shared_ptr<theory::eq::EqProof> pf) : d_proof(pf) {}
void toStream(std::ostream& out) const override;
void toStream(std::ostream& out, const ProofLetMap& map) const override;
private:
static void toStreamLFSC(std::ostream& out, TheoryProof* tp,
const theory::eq::EqProof& pf,
const ProofLetMap& map);
static Node toStreamRecLFSC(std::ostream& out, TheoryProof* tp,
const theory::eq::EqProof& pf, unsigned tb,
const ProofLetMap& map);
// it is simply an equality engine proof
std::shared_ptr<theory::eq::EqProof> d_proof;
};
namespace theory {
namespace uf {
class TheoryUF;
}
}
typedef std::unordered_set<Type, TypeHashFunction > TypeSet;
class UFProof : public TheoryProof {
protected:
TypeSet d_sorts; // all the uninterpreted sorts in this theory
ExprSet d_declarations; // all the variable/function declarations
theory::TheoryId getTheoryId() override;
public:
UFProof(theory::uf::TheoryUF* uf, TheoryProofEngine* proofEngine);
void registerTerm(Expr term) override;
};
class LFSCUFProof : public UFProof {
public:
LFSCUFProof(theory::uf::TheoryUF* uf, TheoryProofEngine* proofEngine)
: UFProof(uf, proofEngine)
{}
void printOwnedTerm(Expr term,
std::ostream& os,
const ProofLetMap& map) override;
void printOwnedSort(Type type, std::ostream& os) override;
void printTheoryLemmaProof(std::vector<Expr>& lemma,
std::ostream& os,
std::ostream& paren,
const ProofLetMap& map) override;
void printSortDeclarations(std::ostream& os, std::ostream& paren) override;
void printTermDeclarations(std::ostream& os, std::ostream& paren) override;
void printDeferredDeclarations(std::ostream& os,
std::ostream& paren) override;
void printAliasingDeclarations(std::ostream& os,
std::ostream& paren,
const ProofLetMap& globalLetMap) override;
bool printsAsBool(const Node& n) override;
void printConstantDisequalityProof(std::ostream& os,
Expr c1,
Expr c2,
const ProofLetMap& globalLetMap) override;
};
}/* CVC4 namespace */
#endif /* __CVC4__UF__PROOF_H */
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