1 /*******************************************************************************
2 * SAT4J: a SATisfiability library for Java Copyright (C) 2004, 2012 Artois University and CNRS
3 *
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
8 *
9 * Alternatively, the contents of this file may be used under the terms of
10 * either the GNU Lesser General Public License Version 2.1 or later (the
11 * "LGPL"), in which case the provisions of the LGPL are applicable instead
12 * of those above. If you wish to allow use of your version of this file only
13 * under the terms of the LGPL, and not to allow others to use your version of
14 * this file under the terms of the EPL, indicate your decision by deleting
15 * the provisions above and replace them with the notice and other provisions
16 * required by the LGPL. If you do not delete the provisions above, a recipient
17 * may use your version of this file under the terms of the EPL or the LGPL.
18 *
19 * Based on the original MiniSat specification from:
20 *
21 * An extensible SAT solver. Niklas Een and Niklas Sorensson. Proceedings of the
22 * Sixth International Conference on Theory and Applications of Satisfiability
23 * Testing, LNCS 2919, pp 502-518, 2003.
24 *
25 * See www.minisat.se for the original solver in C++.
26 *
27 * Contributors:
28 * CRIL - initial API and implementation
29 *******************************************************************************/
30 package org.sat4j.tools;
31
32 import org.sat4j.specs.IConstr;
33 import org.sat4j.specs.ISolverService;
34 import org.sat4j.specs.Lbool;
35
36 /**
37 * @since 2.3.2
38 */
39 public class LearnedClausesSizeTracing extends
40 SearchListenerAdapter<ISolverService> {
41
42 /**
43 *
44 */
45 private static final long serialVersionUID = 1L;
46
47 private final IVisualizationTool visuTool;
48 private final IVisualizationTool restartTool;
49 private final IVisualizationTool cleanTool;
50 private int counter;
51 private int maxSize;
52
53 public LearnedClausesSizeTracing(IVisualizationTool visuTool,
54 IVisualizationTool restartTool, IVisualizationTool cleanTool) {
55 this.visuTool = visuTool;
56 this.restartTool = restartTool;
57 this.cleanTool = cleanTool;
58 this.counter = 0;
59 this.maxSize = 0;
60 }
61
62 @Override
63 public void end(Lbool result) {
64 this.visuTool.end();
65 this.restartTool.end();
66 this.cleanTool.end();
67 }
68
69 @Override
70 public void learn(IConstr c) {
71 int s = c.size();
72 if (s > this.maxSize) {
73 this.maxSize = s;
74 }
75 this.visuTool.addPoint(this.counter, s);
76 this.restartTool.addInvisiblePoint(this.counter, 0);
77 this.cleanTool.addInvisiblePoint(this.counter, 0);
78 this.counter++;
79 }
80
81 @Override
82 public void start() {
83 this.visuTool.init();
84 this.restartTool.init();
85 this.cleanTool.init();
86 this.counter = 0;
87 this.maxSize = 0;
88 }
89
90 @Override
91 public void restarting() {
92 this.visuTool.addInvisiblePoint(this.counter, 0);
93 this.restartTool.addPoint(this.counter, this.maxSize);
94 this.cleanTool.addPoint(this.counter, 0);
95 }
96
97 @Override
98 public void cleaning() {
99 this.visuTool.addInvisiblePoint(this.counter, 0);
100 this.restartTool.addPoint(this.counter, 0);
101 this.cleanTool.addPoint(this.counter, this.maxSize);
102 }
103 }