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;
31
32 import org.sat4j.core.ASolverFactory;
33 import org.sat4j.minisat.SolverFactory;
34 import org.sat4j.reader.InstanceReader;
35 import org.sat4j.reader.Reader;
36 import org.sat4j.specs.ISolver;
37
38 /**
39 * Very simple launcher, to be used during the SAT competition or the SAT race
40 * for instance.
41 *
42 * @author daniel
43 *
44 */
45 public class BasicLauncher<T extends ISolver> extends AbstractLauncher {
46
47 /**
48 *
49 */
50 private static final long serialVersionUID = 1L;
51
52 private final ASolverFactory<T> factory;
53
54 public BasicLauncher(ASolverFactory<T> factory) {
55 this.factory = factory;
56 }
57
58 /**
59 * Lance le prouveur sur un fichier Dimacs.
60 *
61 * @param args
62 * doit contenir le nom d'un fichier Dimacs, eventuellement
63 * compress?.
64 */
65 public static void main(final String[] args) {
66 BasicLauncher<ISolver> lanceur = new BasicLauncher<ISolver>(
67 SolverFactory.instance());
68 if (args.length != 1) {
69 lanceur.usage();
70 return;
71 }
72 lanceur.run(args);
73 System.exit(lanceur.getExitCode().value());
74 }
75
76 @Override
77 protected ISolver configureSolver(String[] args) {
78 ISolver asolver = this.factory.defaultSolver();
79 asolver.setTimeout(Integer.MAX_VALUE);
80 asolver.setDBSimplificationAllowed(true);
81 getLogWriter().println(asolver.toString(COMMENT_PREFIX));
82 return asolver;
83 }
84
85 @Override
86 protected Reader createReader(ISolver theSolver, String problemname) {
87 return new InstanceReader(theSolver);
88 }
89
90 @Override
91 public void usage() {
92 log("java -jar org.sat4j.core.jar <cnffile>");
93 }
94
95 @Override
96 protected String getInstanceName(String[] args) {
97 if (args.length == 0) {
98 return null;
99 }
100 return args[0];
101 }
102 }