1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
/********************* */
/*! \file uf_proof.h
** \verbatim
** Top contributors (to current version):
** Liana Hadarean, Guy Katz, Tim King
** This file is part of the CVC4 project.
** Copyright (c) 2009-2017 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
public:
UFProof(theory::uf::TheoryUF* uf, TheoryProofEngine* proofEngine);
virtual void registerTerm(Expr term);
};
class LFSCUFProof : public UFProof {
public:
LFSCUFProof(theory::uf::TheoryUF* uf, TheoryProofEngine* proofEngine)
: UFProof(uf, proofEngine)
{}
virtual void printOwnedTerm(Expr term, std::ostream& os, const ProofLetMap& map);
virtual void printOwnedSort(Type type, std::ostream& os);
virtual void printTheoryLemmaProof(std::vector<Expr>& lemma, std::ostream& os, std::ostream& paren, const ProofLetMap& map);
virtual void printSortDeclarations(std::ostream& os, std::ostream& paren);
virtual void printTermDeclarations(std::ostream& os, std::ostream& paren);
virtual void printDeferredDeclarations(std::ostream& os, std::ostream& paren);
virtual void printAliasingDeclarations(std::ostream& os, std::ostream& paren, const ProofLetMap &globalLetMap);
bool printsAsBool(const Node &n);
void printConstantDisequalityProof(std::ostream& os, Expr c1, Expr c2, const ProofLetMap &globalLetMap);
};
}/* CVC4 namespace */
#endif /* __CVC4__UF__PROOF_H */
|
