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
|
/********************* */
/*! \file macros.h
** \verbatim
** Top contributors (to current version):
** Morgan Deters, Andrew Reynolds, Tim King
** This file is part of the CVC4 project.
** Copyright (c) 2009-2016 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 Pre-process step for detecting quantifier macro definitions
**/
#include "cvc4_private.h"
#ifndef __CVC4__QUANTIFIERS_MACROS_H
#define __CVC4__QUANTIFIERS_MACROS_H
#include <iostream>
#include <string>
#include <vector>
#include <map>
#include "expr/node.h"
#include "expr/type_node.h"
#include "theory/quantifiers_engine.h"
namespace CVC4 {
namespace theory {
namespace quantifiers {
class QuantifierMacros{
private:
QuantifiersEngine * d_qe;
private:
bool d_ground_macros;
bool processAssertion( Node n );
bool isBoundVarApplyUf( Node n );
bool process( Node n, bool pol, std::vector< Node >& args, Node f );
bool containsBadOp( Node n, Node op, std::vector< Node >& opc, std::map< Node, bool >& visited );
bool isMacroLiteral( Node n, bool pol );
bool isGroundUfTerm( Node f, Node n );
void getMacroCandidates( Node n, std::vector< Node >& candidates, std::map< Node, bool >& visited );
Node solveInEquality( Node n, Node lit );
bool getFreeVariables( Node n, std::vector< Node >& v_quant, std::vector< Node >& vars, bool retOnly, std::map< Node, bool >& visited );
bool getSubstitution( std::vector< Node >& v_quant, std::map< Node, Node >& solved,
std::vector< Node >& vars, std::vector< Node >& subs, bool reqComplete );
//map from operators to macro basis terms
std::map< Node, std::vector< Node > > d_macro_basis;
//map from operators to macro definition
std::map< Node, Node > d_macro_defs;
std::map< Node, Node > d_macro_defs_new;
//operators to macro ops that contain them
std::map< Node, std::vector< Node > > d_macro_def_contains;
//simplify caches
std::map< Node, Node > d_simplify_cache;
std::map< Node, bool > d_quant_macros;
private:
Node simplify( Node n );
void addMacro( Node op, Node n, std::vector< Node >& opc );
void debugMacroDefinition( Node oo, Node n );
public:
QuantifierMacros( QuantifiersEngine * qe ) : d_qe( qe ){}
~QuantifierMacros(){}
bool simplify( std::vector< Node >& assertions, bool doRewrite = false );
void finalizeDefinitions();
};
}
}
}
#endif
|