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
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
/**CFile****************************************************************
FileName [rsbInt.h]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [SAT-based optimization using internal don't-cares.]
Synopsis [Internal declarations.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: rsbInt.h,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#ifndef ABC__opt_sfmInt__h
#define ABC__opt_sfmInt__h
////////////////////////////////////////////////////////////////////////
/// INCLUDES ///
////////////////////////////////////////////////////////////////////////
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "misc/vec/vec.h"
#include "sat/bsat/satSolver.h"
#include "sfm.h"
////////////////////////////////////////////////////////////////////////
/// PARAMETERS ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_HEADER_START
#define SFM_FANIN_MAX 6
#define SFM_SAT_UNDEC 0x1234567812345678
#define SFM_SAT_SAT 0x8765432187654321
#define SFM_SUPP_MAX 6
#define SFM_WORD_MAX ((SFM_SUPP_MAX>6) ? (1<<(SFM_SUPP_MAX-6)) : 1)
////////////////////////////////////////////////////////////////////////
/// BASIC TYPES ///
////////////////////////////////////////////////////////////////////////
typedef struct Sfm_Fun_t_ Sfm_Fun_t;
typedef struct Sfm_Lib_t_ Sfm_Lib_t;
struct Sfm_Ntk_t_
{
// parameters
Sfm_Par_t * pPars; // parameters
// objects
int nPis; // PI count (PIs should be first objects)
int nPos; // PO count (POs should be last objects)
int nNodes; // internal nodes
int nObjs; // total objects
int nLevelMax; // maximum level
// user data
Vec_Str_t * vFixed; // persistent objects
Vec_Str_t * vEmpty; // transparent objects
Vec_Wrd_t * vTruths; // truth tables
Vec_Wec_t vFanins; // fanins
// attributes
Vec_Wec_t vFanouts; // fanouts
Vec_Int_t vLevels; // logic level
Vec_Int_t vLevelsR; // logic level
Vec_Int_t vCounts; // fanin counters
Vec_Int_t vId2Var; // ObjId -> SatVar
Vec_Int_t vVar2Id; // SatVar -> ObjId
Vec_Wec_t * vCnfs; // CNFs
Vec_Int_t * vCover; // temporary
// traversal IDs
Vec_Int_t vTravIds; // traversal IDs
Vec_Int_t vTravIds2; // traversal IDs
int nTravIds; // traversal IDs
int nTravIds2; // traversal IDs
// window
int iPivotNode; // window pivot
Vec_Int_t * vNodes; // internal
Vec_Int_t * vDivs; // divisors
Vec_Int_t * vRoots; // roots
Vec_Int_t * vTfo; // TFO (excluding iNode)
// SAT solving
sat_solver * pSat; // SAT solver
int nSatVars; // the number of variables
int nTryRemoves; // number of fanin removals
int nTryResubs; // number of resubstitutions
int nRemoves; // number of fanin removals
int nResubs; // number of resubstitutions
// counter-examples
int nCexes; // number of CEXes
Vec_Wrd_t * vDivCexes; // counter-examples
// intermediate data
Vec_Int_t * vOrder; // object order
Vec_Int_t * vDivVars; // divisor SAT variables
Vec_Int_t * vDivIds; // divisors indexes
Vec_Int_t * vLits; // literals
Vec_Int_t * vValues; // SAT variable values
Vec_Wec_t * vClauses; // CNF clauses for the node
Vec_Int_t * vFaninMap; // mapping fanins into their SAT vars
// nodes
int nTotalNodesBeg;
int nTotalEdgesBeg;
int nTotalNodesEnd;
int nTotalEdgesEnd;
int nNodesTried;
int nTotalDivs;
int nSatCalls;
int nTimeOuts;
int nMaxDivs;
// runtime
abctime timeWin;
abctime timeDiv;
abctime timeCnf;
abctime timeSat;
abctime timeOther;
abctime timeTotal;
// abctime time1;
};
static inline int Sfm_NtkPiNum( Sfm_Ntk_t * p ) { return p->nPis; }
static inline int Sfm_NtkPoNum( Sfm_Ntk_t * p ) { return p->nPos; }
static inline int Sfm_NtkNodeNum( Sfm_Ntk_t * p ) { return p->nObjs - p->nPis - p->nPos; }
static inline int Sfm_ObjIsPi( Sfm_Ntk_t * p, int i ) { return i < p->nPis; }
static inline int Sfm_ObjIsPo( Sfm_Ntk_t * p, int i ) { return i + p->nPos >= p->nObjs; }
static inline int Sfm_ObjIsNode( Sfm_Ntk_t * p, int i ) { return i >= p->nPis && i + p->nPos < p->nObjs; }
static inline int Sfm_ObjIsFixed( Sfm_Ntk_t * p, int i ) { return Vec_StrEntry(p->vFixed, i); }
static inline int Sfm_ObjAddsLevelArray( Vec_Str_t * p, int i ) { return p == NULL || Vec_StrEntry(p, i) == 0; }
static inline int Sfm_ObjAddsLevel( Sfm_Ntk_t * p, int i ) { return Sfm_ObjAddsLevelArray(p->vEmpty, i); }
static inline Vec_Int_t * Sfm_ObjFiArray( Sfm_Ntk_t * p, int i ) { return Vec_WecEntry(&p->vFanins, i); }
static inline Vec_Int_t * Sfm_ObjFoArray( Sfm_Ntk_t * p, int i ) { return Vec_WecEntry(&p->vFanouts, i); }
static inline int Sfm_ObjFaninNum( Sfm_Ntk_t * p, int i ) { return Vec_IntSize(Sfm_ObjFiArray(p, i)); }
static inline int Sfm_ObjFanoutNum( Sfm_Ntk_t * p, int i ) { return Vec_IntSize(Sfm_ObjFoArray(p, i)); }
static inline int Sfm_ObjRefIncrement( Sfm_Ntk_t * p, int iObj ) { return ++Sfm_ObjFoArray(p, iObj)->nSize; }
static inline int Sfm_ObjRefDecrement( Sfm_Ntk_t * p, int iObj ) { return --Sfm_ObjFoArray(p, iObj)->nSize; }
static inline int Sfm_ObjFanin( Sfm_Ntk_t * p, int i, int k ) { return Vec_IntEntry(Sfm_ObjFiArray(p, i), k); }
static inline int Sfm_ObjFanout( Sfm_Ntk_t * p, int i, int k ) { return Vec_IntEntry(Sfm_ObjFoArray(p, i), k); }
static inline int Sfm_ObjSatVar( Sfm_Ntk_t * p, int iObj ) { assert(Vec_IntEntry(&p->vId2Var, iObj) > 0); return Vec_IntEntry(&p->vId2Var, iObj); }
static inline void Sfm_ObjSetSatVar( Sfm_Ntk_t * p, int iObj, int Num ) { assert(Vec_IntEntry(&p->vId2Var, iObj) == -1); Vec_IntWriteEntry(&p->vId2Var, iObj, Num); Vec_IntWriteEntry(&p->vVar2Id, Num, iObj); }
static inline void Sfm_ObjCleanSatVar( Sfm_Ntk_t * p, int Num ) { int iObj = Vec_IntEntry(&p->vVar2Id, Num); assert(Vec_IntEntry(&p->vId2Var, iObj) > 0); Vec_IntWriteEntry(&p->vId2Var, iObj, -1); Vec_IntWriteEntry(&p->vVar2Id, Num, -1); }
static inline void Sfm_NtkCleanVars( Sfm_Ntk_t * p ) { int i; for ( i = 1; i < p->nSatVars; i++ ) if ( Vec_IntEntry(&p->vVar2Id, i) != -1 ) Sfm_ObjCleanSatVar( p, i ); }
static inline int Sfm_ObjLevel( Sfm_Ntk_t * p, int iObj ) { return Vec_IntEntry( &p->vLevels, iObj ); }
static inline void Sfm_ObjSetLevel( Sfm_Ntk_t * p, int iObj, int Lev ) { Vec_IntWriteEntry( &p->vLevels, iObj, Lev ); }
static inline int Sfm_ObjLevelR( Sfm_Ntk_t * p, int iObj ) { return Vec_IntEntry( &p->vLevelsR, iObj ); }
static inline void Sfm_ObjSetLevelR( Sfm_Ntk_t * p, int iObj, int Lev ) { Vec_IntWriteEntry( &p->vLevelsR, iObj, Lev ); }
static inline int Sfm_ObjUpdateFaninCount( Sfm_Ntk_t * p, int iObj ) { return Vec_IntAddToEntry(&p->vCounts, iObj, -1); }
static inline void Sfm_ObjResetFaninCount( Sfm_Ntk_t * p, int iObj ) { Vec_IntWriteEntry(&p->vCounts, iObj, Sfm_ObjFaninNum(p, iObj)-1); }
extern void Kit_DsdPrintFromTruth( unsigned * pTruth, int nVars );
////////////////////////////////////////////////////////////////////////
/// MACRO DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
#define Sfm_NtkForEachPi( p, i ) for ( i = 0; i < p->nPis; i++ )
#define Sfm_NtkForEachPo( p, i ) for ( i = p->nObjs - p->nPos; i < p->nObjs; i++ )
#define Sfm_NtkForEachNode( p, i ) for ( i = p->nPis; i + p->nPos < p->nObjs; i++ )
#define Sfm_NtkForEachNodeReverse( p, i ) for ( i = p->nObjs - p->nPos - 1; i >= p->nPis; i-- )
#define Sfm_ObjForEachFanin( p, Node, Fan, i ) for ( i = 0; i < Sfm_ObjFaninNum(p, Node) && ((Fan = Sfm_ObjFanin(p, Node, i)), 1); i++ )
#define Sfm_ObjForEachFanout( p, Node, Fan, i ) for ( i = 0; i < Sfm_ObjFanoutNum(p, Node) && ((Fan = Sfm_ObjFanout(p, Node, i)), 1); i++ )
////////////////////////////////////////////////////////////////////////
/// FUNCTION DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
/*=== sfmCnf.c ==========================================================*/
extern void Sfm_PrintCnf( Vec_Str_t * vCnf );
extern int Sfm_TruthToCnf( word Truth, int nVars, Vec_Int_t * vCover, Vec_Str_t * vCnf );
extern Vec_Wec_t * Sfm_CreateCnf( Sfm_Ntk_t * p );
extern void Sfm_TranslateCnf( Vec_Wec_t * vRes, Vec_Str_t * vCnf, Vec_Int_t * vFaninMap, int iPivotVar );
/*=== sfmCore.c ==========================================================*/
/*=== sfmLib.c ==========================================================*/
extern Sfm_Lib_t * Sfm_LibPrepare( int nVars, int fTwo, int fVerbose );
extern void Sfm_LibPrint( Sfm_Lib_t * p );
extern void Sfm_LibStop( Sfm_Lib_t * p );
extern int Sfm_LibImplement( Sfm_Lib_t * p, word uTruth, int * pFanins, int nFanins, Vec_Int_t * vGates, Vec_Wec_t * vFanins );
/*=== sfmNtk.c ==========================================================*/
extern Sfm_Ntk_t * Sfm_ConstructNetwork( Vec_Wec_t * vFanins, int nPis, int nPos );
extern void Sfm_NtkPrepare( Sfm_Ntk_t * p );
extern void Sfm_NtkUpdate( Sfm_Ntk_t * p, int iNode, int f, int iFaninNew, word uTruth );
/*=== sfmSat.c ==========================================================*/
extern int Sfm_NtkWindowToSolver( Sfm_Ntk_t * p );
extern word Sfm_ComputeInterpolant( Sfm_Ntk_t * p );
/*=== sfmWin.c ==========================================================*/
extern int Sfm_ObjMffcSize( Sfm_Ntk_t * p, int iObj );
extern int Sfm_NtkCreateWindow( Sfm_Ntk_t * p, int iNode, int fVerbose );
ABC_NAMESPACE_HEADER_END
#endif
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
|