Examples with Universe kodkod.instance.Universe used on opensource projects

Example 46 with Universe

use of kodkod.instance.Universe in project org.alloytools.alloy by AlloyTools.

the class FileSystem method bounds.

/**
 * Returns the bounds for the given scope.
 *
 * @return the bounds for the given scope.
 */
public final Bounds bounds(int scope) {
    assert scope > 0;
    final int n = scope * 3;
    final List<String> atoms = new ArrayList<String>(n);
    for (int i = 0; i < scope; i++) atoms.add("Object" + i);
    for (int i = 0; i < scope; i++) atoms.add("Name" + i);
    for (int i = 0; i < scope; i++) atoms.add("DirEntry" + i);
    final Universe u = new Universe(atoms);
    final TupleFactory f = u.factory();
    final Bounds b = new Bounds(u);
    final int max = scope - 1;
    b.bound(Obj, f.range(f.tuple("Object0"), f.tuple("Object" + max)));
    b.boundExactly(Root, f.setOf("Object0"));
    b.bound(Cur, b.upperBound(Obj));
    b.bound(File, b.upperBound(Obj));
    b.bound(Dir, b.upperBound(Obj));
    b.bound(Name, f.range(f.tuple("Name0"), f.tuple("Name" + max)));
    b.bound(DirEntry, f.range(f.tuple("DirEntry0"), f.tuple("DirEntry" + max)));
    b.bound(entries, b.upperBound(Dir).product(b.upperBound(DirEntry)));
    b.bound(parent, b.upperBound(Dir).product(b.upperBound(Dir)));
    b.bound(name, b.upperBound(DirEntry).product(b.upperBound(Name)));
    b.bound(contents, b.upperBound(DirEntry).product(b.upperBound(Obj)));
    return b;
}

Example 47 with Universe

use of kodkod.instance.Universe in project org.alloytools.alloy by AlloyTools.

the class Pigeonhole method bounds.

/**
 * Returns the bounds for the given number of pigeons and holes.
 *
 * @return bounds
 */
public Bounds bounds(int pigeons, int holes) {
    final List<String> atoms = new ArrayList<String>(pigeons + holes);
    for (int i = 0; i < pigeons; i++) {
        atoms.add("Pigeon" + i);
    }
    for (int i = 0; i < holes; i++) {
        atoms.add("Hole" + i);
    }
    final Universe u = new Universe(atoms);
    final TupleFactory f = u.factory();
    final Bounds b = new Bounds(u);
    final TupleSet pbound = f.range(f.tuple("Pigeon0"), f.tuple("Pigeon" + (pigeons - 1)));
    final TupleSet hbound = f.range(f.tuple("Hole0"), f.tuple("Hole" + (holes - 1)));
    b.boundExactly(Pigeon, pbound);
    b.boundExactly(Hole, hbound);
    b.bound(hole, pbound.product(hbound));
    return b;
}

Example 48 with Universe

use of kodkod.instance.Universe in project org.alloytools.alloy by AlloyTools.

the class Toughnut method bounds.

/**
 * Returns bounds for an nxn board.
 *
 * @return bounds for an nxn board.
 */
public Bounds bounds(int n) {
    assert n > 0;
    final List<String> atoms = new ArrayList<String>(n);
    for (int i = 0; i < n; i++) {
        atoms.add(String.valueOf(i));
    }
    final Universe u = new Universe(atoms);
    final Bounds b = new Bounds(u);
    final TupleFactory f = u.factory();
    b.boundExactly(Cell, f.allOf(1));
    final TupleSet ordBound = f.noneOf(2);
    for (int i = 0; i < n - 1; i++) {
        ordBound.add(f.tuple(String.valueOf(i), String.valueOf(i + 1)));
    }
    b.boundExactly(ord, ordBound);
    final TupleSet board = f.allOf(2);
    board.remove(f.tuple(String.valueOf(0), String.valueOf(0)));
    board.remove(f.tuple(String.valueOf(n - 1), String.valueOf(n - 1)));
    b.bound(covered, board.product(board));
    return b;
}

Example 49 with Universe

use of kodkod.instance.Universe in project org.alloytools.alloy by AlloyTools.

the class Viktor method bounds.

/**
 * Returns the bounds for the problem.
 *
 * @return bounds
 */
public final Bounds bounds() {
    List<String> atoms = new ArrayList<String>(cols + 1);
    for (int i = 0; i < cols; i++) {
        atoms.add(String.valueOf(i));
    }
    atoms.add("a");
    final Universe u = new Universe(atoms);
    final TupleFactory f = u.factory();
    final Bounds b = new Bounds(u);
    final TupleSet abound = f.setOf("a");
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            b.bound(a[i][j], abound);
        }
    }
    final TupleSet xbound = f.range(f.tuple(String.valueOf(0)), f.tuple(String.valueOf(cols - 1)));
    for (int j = 0; j < cols; j++) {
        b.bound(x[j], xbound);
        b.boundExactly(j, f.setOf(String.valueOf(j)));
    }
    return b;
}

Example 50 with Universe

use of kodkod.instance.Universe in project org.alloytools.alloy by AlloyTools.

the class ConfigAssure method bounds.

/**
 * Returns the bounds corresponding to the given ip address and subnet files.
 *
 * @return bounds corresponding to the given ip address and subnet files.
 * @throws IOException if either of the files cannot be found or accessed
 * @throws IllegalArgumentException if either of the files cannot be parsed
 */
public Bounds bounds(String ipAddrsFile, String subnetsFile) throws IOException {
    final Map<String, NetNode> nodes = parseAddresses(ipAddrsFile);
    final Map<NetNode, Subnet> subnets = parseSubnets(subnetsFile, nodes);
    final Universe universe = universe(nodes.keySet());
    final Bounds bounds = new Bounds(universe);
    final TupleFactory factory = universe.factory();
    // bind the integers
    for (int i = 0; i < 32; i++) {
        bounds.boundExactly(1 << i, factory.setOf(Integer.valueOf(1 << i)));
    }
    // bind the port relation exactly to the port names
    bounds.boundExactly(port, factory.range(factory.tuple(universe.atom(0)), factory.tuple(universe.atom(nodes.keySet().size() - 1))));
    // bind the unknown relation exactly to the port names of ports with
    // unknown addresses or masks
    final TupleSet unknownBound = factory.noneOf(1);
    for (NetNode n : nodes.values()) {
        if (!n.known()) {
            unknownBound.add(factory.tuple(n.port));
        }
    }
    bounds.boundExactly(unknown, unknownBound);
    // bind the subnet relation exactly, choosing the first element of each
    // subnet as the representative
    final TupleSet subnetBound = factory.noneOf(2);
    for (Map.Entry<NetNode, Subnet> entry : subnets.entrySet()) {
        final NetNode rep = entry.getKey();
        for (NetNode member : entry.getValue().members) {
            subnetBound.add(factory.tuple(rep.port, member.port));
        }
    }
    bounds.boundExactly(subnet, subnetBound);
    // bind the addr relation so that each address is guaranteed to be
    // between minAddr (121.96.0.0) and maxAddr (121.96.255.255), inclusive
    final TupleSet lAddr = factory.noneOf(2), uAddr = factory.noneOf(2);
    for (NetNode node : nodes.values()) {
        if (node.varAddress) {
            // unknown address
            lAddr.addAll(portToBits(factory, node.port, minAddr));
            uAddr.addAll(portToBits(factory, node.port, maxAddr));
        } else {
            // known address
            final TupleSet portToAddrBits = portToBits(factory, node.port, node.address);
            lAddr.addAll(portToAddrBits);
            uAddr.addAll(portToAddrBits);
        }
    }
    bounds.bound(addr, lAddr, uAddr);
    // bind the group and groupMask relations so that all ports with the
    // same interface on the same subnet are guaranteed to have the same
    // mask
    final TupleSet lMask = factory.noneOf(2), uMask = factory.noneOf(2), groupBound = factory.noneOf(2);
    for (Subnet sub : subnets.values()) {
        for (Map.Entry<NetNode, Set<NetNode>> entry : sub.groups.entrySet()) {
            final NetNode rep = entry.getKey();
            for (NetNode member : entry.getValue()) {
                groupBound.add(factory.tuple(member.port, rep.port));
                // remove a grouped member out of
                nodes.remove(member.port);
            // the addresses set
            }
            if (rep.varMask) {
                // unknown mask for the representative
                uMask.addAll(portToBits(factory, rep.port, 31));
            } else {
                // known mask for the representative
                final TupleSet portToMaskBits = portToBits(factory, rep.port, rep.mask);
                lMask.addAll(portToMaskBits);
                uMask.addAll(portToMaskBits);
            }
        }
    }
    // of any subnet
    for (NetNode ungrouped : nodes.values()) {
        groupBound.add(factory.tuple(ungrouped.port, ungrouped.port));
        if (ungrouped.varMask) {
            // unknown mask for the representative
            uMask.addAll(portToBits(factory, ungrouped.port, 31));
        } else {
            // known mask for the representative
            final TupleSet portToMaskBits = portToBits(factory, ungrouped.port, ungrouped.mask);
            lMask.addAll(portToMaskBits);
            uMask.addAll(portToMaskBits);
        }
    }
    bounds.bound(groupMask, lMask, uMask);
    bounds.boundExactly(group, groupBound);
    // ", unknown.size: " + unknownBound.size());
    return bounds;
}