blob: b2c35c4f7a5a3b63061d600dc170a751fb92ff9c (
plain)
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
|
/********************* */
/*! \file cnf_proof.h
** \verbatim
** Original author: Liana Hadarean
** Major contributors: Morgan Deters
** Minor contributors (to current version): none
** This file is part of the CVC4 project.
** Copyright (c) 2009-2014 New York University and The University of Iowa
** See the file COPYING in the top-level source directory for licensing
** information.\endverbatim
**
** \brief A manager for CnfProofs.
**
** A manager for CnfProofs.
**
**
**/
#ifndef __CVC4__CNF_PROOF_H
#define __CVC4__CNF_PROOF_H
#include "cvc4_private.h"
#include "util/proof.h"
#include "proof/sat_proof.h"
#include <ext/hash_set>
#include <ext/hash_map>
#include <iostream>
namespace CVC4 {
namespace prop {
class CnfStream;
}
class CnfProof;
class AtomIterator {
CnfProof& d_cnf;
ProofManager::var_iterator d_it;
public:
AtomIterator(CnfProof& cnf, const ProofManager::var_iterator& it)
: d_cnf(cnf), d_it(it)
{}
inline Expr operator*();
AtomIterator& operator++() { ++d_it; return *this; }
AtomIterator operator++(int) { AtomIterator x = *this; ++d_it; return x; }
bool operator==(const AtomIterator& it) const { return &d_cnf == &it.d_cnf && d_it == it.d_it; }
bool operator!=(const AtomIterator& it) const { return !(*this == it); }
};/* class AtomIterator */
class CnfProof {
protected:
CVC4::prop::CnfStream* d_cnfStream;
Expr getAtom(prop::SatVariable var);
friend class AtomIterator;
public:
CnfProof(CVC4::prop::CnfStream* cnfStream);
typedef AtomIterator iterator;
virtual iterator begin_atom_mapping() = 0;
virtual iterator end_atom_mapping() = 0;
virtual void printAtomMapping(std::ostream& os, std::ostream& paren) = 0;
virtual void printClauses(std::ostream& os, std::ostream& paren) = 0;
virtual ~CnfProof();
};
class LFSCCnfProof : public CnfProof {
void printInputClauses(std::ostream& os, std::ostream& paren);
void printTheoryLemmas(std::ostream& os, std::ostream& paren);
void printClause(const prop::SatClause& clause, std::ostream& os, std::ostream& paren);
public:
LFSCCnfProof(CVC4::prop::CnfStream* cnfStream)
: CnfProof(cnfStream)
{}
virtual iterator begin_atom_mapping();
virtual iterator end_atom_mapping();
virtual void printAtomMapping(std::ostream& os, std::ostream& paren);
virtual void printClauses(std::ostream& os, std::ostream& paren);
};
inline Expr AtomIterator::operator*() {
return d_cnf.getAtom(*d_it);
}
} /* CVC4 namespace */
#endif /* __CVC4__CNF_PROOF_H */
|