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.pb;
31
32 import java.util.Collection;
33
34 import org.sat4j.AbstractLauncher;
35 import org.sat4j.ExitCode;
36 import org.sat4j.pb.reader.OPBEclipseReader2007;
37 import org.sat4j.pb.tools.XplainPB;
38 import org.sat4j.reader.Reader;
39 import org.sat4j.specs.IConstr;
40 import org.sat4j.specs.ISolver;
41 import org.sat4j.specs.TimeoutException;
42
43 public class LanceurPseudo2007Eclipse extends LanceurPseudo2007 {
44
45 XplainPB quickxplain;
46
47 @Override
48 protected ISolver configureSolver(String[] args) {
49 IPBSolver theSolver;
50 if (args.length > 1) {
51 theSolver = SolverFactory.instance().createSolverByName(args[0]);
52 } else {
53 theSolver = SolverFactory.newDefault();
54 }
55 this.quickxplain = new XplainPB(theSolver);
56 theSolver = new PseudoOptDecorator(this.quickxplain);
57 if (args.length == 3) {
58 theSolver.setTimeout(Integer.valueOf(args[1]));
59 }
60 this.out.println(theSolver.toString(COMMENT_PREFIX));
61 return theSolver;
62 }
63
64 /**
65 *
66 */
67 private static final long serialVersionUID = 1L;
68
69 public LanceurPseudo2007Eclipse() {
70 }
71
72 @Override
73 protected Reader createReader(ISolver theSolver, String problemname) {
74 return new OPBEclipseReader2007((IPBSolver) theSolver);
75 }
76
77 /**
78 * Lance le prouveur sur un fichier Dimacs
79 *
80 * @param args
81 * doit contenir le nom d'un fichier Dimacs, eventuellement
82 * compress?.
83 */
84 public static void main(final String[] args) {
85 final AbstractLauncher lanceur = new LanceurPseudo2007Eclipse();
86 if (args.length == 0 || args.length > 2) {
87 lanceur.usage();
88 return;
89 }
90 lanceur.run(args);
91 System.exit(lanceur.getExitCode().value());
92 }
93
94 @Override
95 protected void displayAnswer() {
96 super.displayAnswer();
97 ExitCode exitCode = getExitCode();
98
99 if (exitCode == ExitCode.UNSATISFIABLE) {
100 try {
101
102 Collection<IConstr> explanation = this.quickxplain.explain();
103 log("Explanation for inconsistency: " + explanation);
104 } catch (TimeoutException e) {
105 log("Timeout ! Need more time to complete");
106 }
107 }
108
109 }
110
111 }