blob: 1458b0dab78102fa629adccd5f3d02f9d8f6f408 (
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
|
/******************************************************************************
* Top contributors (to current version):
* Mathias Preiner, Liana Hadarean, Tim King
*
* This file is part of the cvc5 project.
*
* Copyright (c) 2009-2021 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.
* ****************************************************************************
*
* Bitblaster for the eager BV solver.
*/
#include "cvc4_private.h"
#ifndef CVC5__THEORY__BV__BITBLAST__EAGER_BITBLASTER_H
#define CVC5__THEORY__BV__BITBLAST__EAGER_BITBLASTER_H
#include <memory>
#include <unordered_set>
#include "theory/bv/bitblast/bitblaster.h"
#include "prop/sat_solver.h"
namespace cvc5 {
namespace theory {
namespace bv {
class BitblastingRegistrar;
class BVSolverLazy;
class EagerBitblaster : public TBitblaster<Node>
{
public:
EagerBitblaster(BVSolverLazy* theory_bv, context::Context* context);
~EagerBitblaster();
void addAtom(TNode atom);
void makeVariable(TNode node, Bits& bits) override;
void bbTerm(TNode node, Bits& bits) override;
void bbAtom(TNode node) override;
Node getBBAtom(TNode node) const override;
bool hasBBAtom(TNode atom) const override;
void bbFormula(TNode formula);
void storeBBAtom(TNode atom, Node atom_bb) override;
void storeBBTerm(TNode node, const Bits& bits) override;
bool assertToSat(TNode node, bool propagate = true);
bool solve();
bool solve(const std::vector<Node>& assumptions);
bool collectModelInfo(TheoryModel* m, bool fullModel);
private:
context::Context* d_context;
typedef std::unordered_set<TNode, TNodeHashFunction> TNodeSet;
std::unique_ptr<prop::SatSolver> d_satSolver;
std::unique_ptr<BitblastingRegistrar> d_bitblastingRegistrar;
BVSolverLazy* d_bv;
TNodeSet d_bbAtoms;
TNodeSet d_variables;
// This is either an MinisatEmptyNotify or NULL.
std::unique_ptr<MinisatEmptyNotify> d_notify;
Node getModelFromSatSolver(TNode a, bool fullModel) override;
prop::SatSolver* getSatSolver() override { return d_satSolver.get(); }
bool isSharedTerm(TNode node);
};
class BitblastingRegistrar : public prop::Registrar
{
public:
BitblastingRegistrar(EagerBitblaster* bb) : d_bitblaster(bb) {}
void preRegister(Node n) override { d_bitblaster->bbAtom(n); }
private:
EagerBitblaster* d_bitblaster;
};
} // namespace bv
} // namespace theory
} // namespace cvc5
#endif // CVC5__THEORY__BV__BITBLAST__EAGER_BITBLASTER_H
|
