Examples with CarryVariable edu.uah.rsesc.aadlsimulator.agree.CarryVariable used on opensource projects

Example 1 with CarryVariable

use of edu.uah.rsesc.aadlsimulator.agree.CarryVariable in project AGREE by loonwerks.

the class ReplaceFollowedByOperator method transform.

public static SimulationProgram transform(final SimulationProgram program) {
    final Program lustreProgram = program.getLustreProgram();
    if (lustreProgram.nodes.size() != 1) {
        throw new IllegalArgumentException("Only lustre programs with exactly one node are supported");
    }
    final ReplaceFollowedByOperator visitor = new ReplaceFollowedByOperator();
    final NodeBuilder nodeBuilder = new NodeBuilder(visitor.visit(lustreProgram.getMainNode()));
    // Create variable for the step number
    nodeBuilder.addInput(new VarDecl(stepVariableId, NamedType.INT));
    // Add an output for the next step number
    nodeBuilder.addOutput(new VarDecl(nextStepVariableId, NamedType.INT));
    nodeBuilder.addEquation(new Equation(new IdExpr(nextStepVariableId), new BinaryExpr(new IdExpr(stepVariableId), BinaryOp.PLUS, new IntExpr(1))));
    // Create the new lustre program using the new node
    final ProgramBuilder lustreProgramBuilder = new ProgramBuilder(lustreProgram);
    lustreProgramBuilder.clearNodes();
    lustreProgramBuilder.addNode(nodeBuilder.build());
    // Create the simulation program
    final SimulationProgramBuilder simulationProgramBuilder = new SimulationProgramBuilder(program);
    final Expr stepVariableExpr = new IdExpr(stepVariableId);
    // Ensure that the initial step is greater than the first step when simulating inductive counterexamples
    final int initialStepValue = program.getType().isInductive() ? firstStepValue + 1 : firstStepValue;
    simulationProgramBuilder.addInitialConstraint(new BinaryExpr(stepVariableExpr, BinaryOp.EQUAL, new IntExpr(initialStepValue)));
    simulationProgramBuilder.addCarryVariable(new CarryVariable(stepVariableExpr, new IdExpr(nextStepVariableId)));
    simulationProgramBuilder.setLustreProgram(lustreProgramBuilder.build());
    return simulationProgramBuilder.build();
}

Example 2 with CarryVariable

use of edu.uah.rsesc.aadlsimulator.agree.CarryVariable in project AGREE by loonwerks.

the class FrameAssertionHelper method addNextFrameAssertions.

/**
 * Adds the frame specific assertions for the next frame to an assertion collection. Does not add assertions related to property enablement.
 * @param program
 * @param lastResults
 * @param assertions is the collection to which assertions will be added.
 */
public static void addNextFrameAssertions(final SimulationProgram program, final SimulationFrameResults lastResults, final Collection<Expr> assertions) {
    if (lastResults == null) {
        for (final Expr c : program.getInitialConstraints()) {
            assertions.add(c);
        }
    } else {
        for (final CarryVariable cv : program.getCarryVariables()) {
            final Value value = lastResults.getValue(cv.getOutputVariableExpression().toString());
            if (value == null) {
                throw new RuntimeException("Unable to get value for: " + cv.getOutputVariableExpression().toString());
            }
            final Expr valueExpression = valueToExpr(value);
            assertions.add(new BinaryExpr(cv.getInputVariableExpression(), BinaryOp.EQUAL, valueExpression));
        }
    }
}