Examples with A4Solution edu.mit.csail.sdg.translator.A4Solution used on opensource projects

Example 1 with A4Solution

use of edu.mit.csail.sdg.translator.A4Solution in project org.alloytools.alloy by AlloyTools.

the class SimpleReporter method resultSAT.

/**
 * {@inheritDoc}
 */
@Override
public void resultSAT(Object command, long solvingTime, Object solution) {
    if (!(solution instanceof A4Solution) || !(command instanceof Command))
        return;
    A4Solution sol = (A4Solution) solution;
    Command cmd = (Command) command;
    String formula = recordKodkod ? sol.debugExtractKInput() : "";
    String filename = tempfile + ".xml";
    synchronized (SimpleReporter.class) {
        try {
            cb("R3", "   Writing the XML file...");
            if (latestModule != null)
                writeXML(this, latestModule, filename, sol, latestKodkodSRC);
        } catch (Throwable ex) {
            cb("bold", "\n" + (ex.toString().trim()) + "\nStackTrace:\n" + (MailBug.dump(ex).trim()) + "\n");
            return;
        }
        latestKodkods.clear();
        latestKodkods.add(sol.toString());
        latestKodkod = sol;
        latestKodkodXML = filename;
    }
    String formulafilename = "";
    if (formula.length() > 0 && tempfile != null) {
        formulafilename = tempfile + ".java";
        try {
            Util.writeAll(formulafilename, formula);
            formulafilename = "CNF: " + formulafilename;
        } catch (Throwable ex) {
            formulafilename = "";
        }
    }
    cb("sat", cmd.check, cmd.expects, filename, formulafilename, System.currentTimeMillis() - lastTime);
}

Example 2 with A4Solution

use of edu.mit.csail.sdg.translator.A4Solution in project org.alloytools.alloy by AlloyTools.

the class SimpleReporter method resultUNSAT.

/**
 * {@inheritDoc}
 */
@Override
public void resultUNSAT(Object command, long solvingTime, Object solution) {
    if (!(solution instanceof A4Solution) || !(command instanceof Command))
        return;
    A4Solution sol = (A4Solution) solution;
    Command cmd = (Command) command;
    String originalFormula = recordKodkod ? sol.debugExtractKInput() : "";
    String corefilename = "", formulafilename = "";
    if (originalFormula.length() > 0 && tempfile != null) {
        formulafilename = tempfile + ".java";
        try {
            Util.writeAll(formulafilename, originalFormula);
            formulafilename = "CNF: " + formulafilename;
        } catch (Throwable ex) {
            formulafilename = "";
        }
    }
    Pair<Set<Pos>, Set<Pos>> core = sol.highLevelCore();
    if ((core.a.size() > 0 || core.b.size() > 0) && tempfile != null) {
        corefilename = tempfile + ".core";
        OutputStream fs = null;
        ObjectOutputStream os = null;
        try {
            fs = new FileOutputStream(corefilename);
            os = new ObjectOutputStream(fs);
            os.writeObject(core);
            os.writeObject(sol.lowLevelCore());
            corefilename = "CORE: " + corefilename;
        } catch (Throwable ex) {
            corefilename = "";
        } finally {
            Util.close(os);
            Util.close(fs);
        }
    }
    if (minimized == 0)
        cb("unsat", cmd.check, cmd.expects, (System.currentTimeMillis() - lastTime), formulafilename);
    else
        cb("unsat", cmd.check, cmd.expects, minimized - lastTime, formulafilename, corefilename, minimizedBefore, minimizedAfter, (System.currentTimeMillis() - minimized));
}

Example 3 with A4Solution

use of edu.mit.csail.sdg.translator.A4Solution in project org.alloytools.alloy by AlloyTools.

the class EvaluatorExample method main.

public static void main(String[] args) throws Exception {
    A4Reporter rep = new A4Reporter();
    File tmpAls = CompUtil.flushModelToFile(model, null);
    {
        Module world = CompUtil.parseEverything_fromString(rep, model);
        A4Options opt = new A4Options();
        opt.originalFilename = tmpAls.getAbsolutePath();
        opt.solver = A4Options.SatSolver.SAT4J;
        Command cmd = world.getAllCommands().get(0);
        A4Solution sol = TranslateAlloyToKodkod.execute_commandFromBook(rep, world.getAllReachableSigs(), cmd, opt);
        assert sol.satisfiable();
        sol.writeXML(outputfilename);
        // eval with existing A4Solution
        Expr e = CompUtil.parseOneExpression_fromString(world, "univ");
        System.out.println(sol.eval(e));
        e = CompUtil.parseOneExpression_fromString(world, "Point");
        System.out.println(sol.eval(e));
    }
    // reload everything from files
    {
        XMLNode xmlNode = new XMLNode(new File(outputfilename));
        String alloySourceFilename = xmlNode.iterator().next().getAttribute("filename");
        Module ansWorld = CompUtil.parseEverything_fromFile(rep, null, alloySourceFilename);
        A4Solution ans = A4SolutionReader.read(ansWorld.getAllReachableSigs(), xmlNode);
        Expr e = CompUtil.parseOneExpression_fromString(ansWorld, "univ");
        System.out.println(ans.eval(e));
        e = CompUtil.parseOneExpression_fromString(ansWorld, "Point");
        System.out.println(ans.eval(e));
    }
}

Example 4 with A4Solution

use of edu.mit.csail.sdg.translator.A4Solution in project org.alloytools.alloy by AlloyTools.

the class ExampleUsingTheAPI method main.

public static void main(String[] args) throws Err {
    // Chooses the Alloy4 options
    A4Options opt = new A4Options();
    opt.solver = A4Options.SatSolver.SAT4J;
    // abstract sig A {}
    PrimSig A = new PrimSig("A", Attr.ABSTRACT);
    // sig B {}
    PrimSig B = new PrimSig("B");
    // one sig A1 extends A {}
    PrimSig A1 = new PrimSig("A1", A, Attr.ONE);
    // one sig A2 extends A {}
    PrimSig A2 = new PrimSig("A2", A, Attr.ONE);
    // A { f: B lone->lone B }
    Expr f = A.addField("f", B.lone_arrow_lone(B));
    // Since (B lone->lone B) is not unary, the default is "setOf", meaning
    // "f:set (B lone->lone B)"
    // A { g: B }
    Expr g = A.addField("g", B);
    // The line above is the same as: A.addField(null, "g", B.oneOf()) since
    // B is unary.
    // If you want "setOf", you need: A.addField(null, "g", B.setOf())
    // pred someG { some g }
    Func someG = new Func(null, "SomeG", null, null, g.some());
    // pred atMostThree[x:univ, y:univ] { #(x+y) >= 3 }
    Decl x = UNIV.oneOf("x");
    Decl y = UNIV.oneOf("y");
    Expr body = x.get().plus(y.get()).cardinality().lte(ExprConstant.makeNUMBER(3));
    Func atMost3 = new Func(null, "atMost3", Util.asList(x, y), null, body);
    List<Sig> sigs = Arrays.asList(new Sig[] { A, B, A1, A2 });
    // run { some A && atMostThree[B,B] } for 3 but 3 int, 3 seq
    Expr expr1 = A.some().and(atMost3.call(B, B));
    Command cmd1 = new Command(false, 3, 3, 3, expr1);
    A4Solution sol1 = TranslateAlloyToKodkod.execute_command(NOP, sigs, cmd1, opt);
    System.out.println("[Solution1]:");
    System.out.println(sol1.toString());
    // run { some f && SomeG[] } for 3 but 2 int, 1 seq, 5 A, exactly 6 B
    Expr expr2 = f.some().and(someG.call());
    Command cmd2 = new Command(false, 3, 2, 1, expr2);
    cmd2 = cmd2.change(A, false, 1);
    cmd2 = cmd2.change(B, true, 1);
    A4Solution sol2 = TranslateAlloyToKodkod.execute_command(NOP, sigs, cmd2, opt);
    while (sol2.satisfiable()) {
        System.out.println("[Solution2]:");
        System.out.println(sol2.toString());
        sol2 = sol2.next();
    }
}

Example 5 with A4Solution

use of edu.mit.csail.sdg.translator.A4Solution in project org.alloytools.alloy by AlloyTools.

the class ExampleUsingTheCompiler method main.

/*
     * Execute every command in every file. This method parses every file, then
     * execute every command. If there are syntax or type errors, it may throw a
     * ErrorSyntax or ErrorType or ErrorAPI or ErrorFatal exception. You should
     * catch them and display them, and they may contain filename/line/column
     * information.
     */
public static void main(String[] args) throws Err {
    // The visualizer (We will initialize it to nonnull when we visualize an
    // Alloy solution)
    VizGUI viz = null;
    // Alloy4 sends diagnostic messages and progress reports to the
    // A4Reporter.
    // By default, the A4Reporter ignores all these events (but you can
    // extend the A4Reporter to display the event for the user)
    A4Reporter rep = new A4Reporter() {

        // For example, here we choose to display each "warning" by printing
        // it to System.out
        @Override
        public void warning(ErrorWarning msg) {
            System.out.print("Relevance Warning:\n" + (msg.toString().trim()) + "\n\n");
            System.out.flush();
        }
    };
    for (String filename : args) {
        // Parse+typecheck the model
        System.out.println("=========== Parsing+Typechecking " + filename + " =============");
        Module world = CompUtil.parseEverything_fromFile(rep, null, filename);
        // Choose some default options for how you want to execute the
        // commands
        A4Options options = new A4Options();
        options.solver = A4Options.SatSolver.SAT4J;
        for (Command command : world.getAllCommands()) {
            // Execute the command
            System.out.println("============ Command " + command + ": ============");
            A4Solution ans = TranslateAlloyToKodkod.execute_command(rep, world.getAllReachableSigs(), command, options);
            // Print the outcome
            System.out.println(ans);
            // If satisfiable...
            if (ans.satisfiable()) {
                // You can query "ans" to find out the values of each set or
                // type.
                // This can be useful for debugging.
                // 
                // You can also write the outcome to an XML file
                ans.writeXML("alloy_example_output.xml");
                // You can then visualize the XML file by calling this:
                if (viz == null) {
                    viz = new VizGUI(false, "alloy_example_output.xml", null);
                } else {
                    viz.loadXML("alloy_example_output.xml", true);
                }
            }
        }
    }
}