|
1 |
| |
|
2 |
| |
|
3 |
| |
|
4 |
| |
|
5 |
| |
|
6 |
| |
|
7 |
| package org.sat4j.minisat.constraints.cnf; |
|
8 |
| |
|
9 |
| import java.io.Serializable; |
|
10 |
| |
|
11 |
| import org.sat4j.core.VecInt; |
|
12 |
| import org.sat4j.minisat.core.Constr; |
|
13 |
| import org.sat4j.minisat.core.ILits; |
|
14 |
| import org.sat4j.minisat.core.UnitPropagationListener; |
|
15 |
| import org.sat4j.specs.IVecInt; |
|
16 |
| |
|
17 |
| |
|
18 |
| |
|
19 |
| |
|
20 |
| |
|
21 |
| public class BinaryClauses implements Constr, Serializable { |
|
22 |
| |
|
23 |
| private static final long serialVersionUID = 1L; |
|
24 |
| |
|
25 |
| private final ILits voc; |
|
26 |
| |
|
27 |
| private final IVecInt clauses = new VecInt(); |
|
28 |
| |
|
29 |
| private final int reason; |
|
30 |
| |
|
31 |
| private int conflictindex = -1; |
|
32 |
| |
|
33 |
| |
|
34 |
| |
|
35 |
| |
|
36 |
74305
| public BinaryClauses(ILits voc, int p) {
|
|
37 |
74305
| this.voc = voc;
|
|
38 |
74305
| this.reason = p;
|
|
39 |
| } |
|
40 |
| |
|
41 |
1176730
| public void addBinaryClause(int p) {
|
|
42 |
1176730
| clauses.push(p);
|
|
43 |
| } |
|
44 |
| |
|
45 |
| |
|
46 |
| |
|
47 |
| |
|
48 |
| |
|
49 |
| |
|
50 |
0
| public void remove() {
|
|
51 |
| |
|
52 |
| } |
|
53 |
| |
|
54 |
| |
|
55 |
| |
|
56 |
| |
|
57 |
| |
|
58 |
| |
|
59 |
| |
|
60 |
270259858
| public boolean propagate(UnitPropagationListener s, int p) {
|
|
61 |
| assert voc.isFalsified(this.reason); |
|
62 |
270259858
| voc.watch(p, this);
|
|
63 |
270259858
| for (int i = 0; i < clauses.size(); i++) {
|
|
64 |
| int q = clauses.get(i); |
|
65 |
| if (!s.enqueue(q,this)) { |
|
66 |
21337103
| conflictindex = i;
|
|
67 |
21337103
| return false;
|
|
68 |
| } |
|
69 |
| } |
|
70 |
248922755
| return true;
|
|
71 |
| } |
|
72 |
| |
|
73 |
| |
|
74 |
| |
|
75 |
| |
|
76 |
| |
|
77 |
| |
|
78 |
0
| public boolean simplify() {
|
|
79 |
0
| for (int i = 0; i < clauses.size(); i++) {
|
|
80 |
0
| if (voc.isSatisfied(clauses.get(i))) {
|
|
81 |
0
| return true;
|
|
82 |
| } |
|
83 |
0
| if (voc.isFalsified(clauses.get(i))) {
|
|
84 |
0
| clauses.delete(i);
|
|
85 |
| } |
|
86 |
| |
|
87 |
| } |
|
88 |
0
| return false;
|
|
89 |
| } |
|
90 |
| |
|
91 |
| |
|
92 |
| |
|
93 |
| |
|
94 |
| |
|
95 |
| |
|
96 |
0
| public void undo(int p) {
|
|
97 |
| |
|
98 |
| } |
|
99 |
| |
|
100 |
| |
|
101 |
| |
|
102 |
| |
|
103 |
| |
|
104 |
| |
|
105 |
165534019
| public void calcReason(int p, IVecInt outReason) {
|
|
106 |
165534019
| outReason.push(this.reason ^ 1);
|
|
107 |
165534019
| if (p == ILits.UNDEFINED) {
|
|
108 |
| |
|
109 |
| |
|
110 |
| |
|
111 |
| |
|
112 |
| assert conflictindex > -1; |
|
113 |
21337066
| outReason.push(clauses.get(conflictindex) ^ 1);
|
|
114 |
| } |
|
115 |
| } |
|
116 |
| |
|
117 |
| |
|
118 |
| |
|
119 |
| |
|
120 |
| |
|
121 |
| |
|
122 |
165534019
| public boolean learnt() {
|
|
123 |
165534019
| return false;
|
|
124 |
| } |
|
125 |
| |
|
126 |
| |
|
127 |
| |
|
128 |
| |
|
129 |
| |
|
130 |
| |
|
131 |
0
| public void incActivity(double claInc) {
|
|
132 |
| |
|
133 |
| } |
|
134 |
| |
|
135 |
| |
|
136 |
| |
|
137 |
| |
|
138 |
| |
|
139 |
| |
|
140 |
0
| public double getActivity() {
|
|
141 |
| |
|
142 |
0
| return 0;
|
|
143 |
| } |
|
144 |
| |
|
145 |
| |
|
146 |
| |
|
147 |
| |
|
148 |
| |
|
149 |
| |
|
150 |
0
| public boolean locked() {
|
|
151 |
0
| return false;
|
|
152 |
| } |
|
153 |
| |
|
154 |
| |
|
155 |
| |
|
156 |
| |
|
157 |
| |
|
158 |
| |
|
159 |
0
| public void setLearnt() {
|
|
160 |
| |
|
161 |
| } |
|
162 |
| |
|
163 |
| |
|
164 |
| |
|
165 |
| |
|
166 |
| |
|
167 |
| |
|
168 |
0
| public void register() {
|
|
169 |
| |
|
170 |
| } |
|
171 |
| |
|
172 |
| |
|
173 |
| |
|
174 |
| |
|
175 |
| |
|
176 |
| |
|
177 |
0
| public void rescaleBy(double d) {
|
|
178 |
| |
|
179 |
| } |
|
180 |
| |
|
181 |
| |
|
182 |
| |
|
183 |
| |
|
184 |
| |
|
185 |
| |
|
186 |
475791979
| public int size() {
|
|
187 |
475791979
| return clauses.size();
|
|
188 |
| } |
|
189 |
| |
|
190 |
| |
|
191 |
| |
|
192 |
| |
|
193 |
| |
|
194 |
| |
|
195 |
0
| public int get(int i) {
|
|
196 |
| |
|
197 |
0
| throw new UnsupportedOperationException();
|
|
198 |
| } |
|
199 |
| |
|
200 |
0
| public void assertConstraint(UnitPropagationListener s) {
|
|
201 |
0
| throw new UnsupportedOperationException();
|
|
202 |
| } |
|
203 |
| } |