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Solver subproject in the Theta model checking framework

There is a newer version: 6.8.5

/*
 *  Copyright 2024 Budapest University of Technology and Economics
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package hu.bme.mit.theta.solver.validator;

import hu.bme.mit.theta.core.model.Valuation;
import hu.bme.mit.theta.core.type.Expr;
import hu.bme.mit.theta.core.type.booltype.BoolType;
import hu.bme.mit.theta.solver.Solver;
import hu.bme.mit.theta.solver.SolverManager;
import hu.bme.mit.theta.solver.SolverStatus;

import java.util.Collection;

import static hu.bme.mit.theta.core.type.booltype.BoolExprs.True;

public class SolverValidatorWrapper implements Solver {
    private final Solver solver;

    SolverValidatorWrapper(String solver) throws Exception {
        this.solver = SolverManager.resolveSolverFactory(solver).createSolver();
    }

    @Override
    public void add(Expr assertion) {
        solver.add(assertion);
    }

    @Override
    public SolverStatus check() {
        SolverStatus check = solver.check();
        if (check.isSat()) {
            final Valuation model = solver.getModel();
            for (Expr assertion : solver.getAssertions()) {
                if (!assertion.eval(model).equals(True())) {
                    throw new SolverValidationException("Solver problem: " + assertion + " not True over {" + model + "}");
                }
            }
        }
        return check;
    }

    @Override
    public void push() {
        solver.push();
    }

    @Override
    public void pop(int n) {
        solver.pop();
    }

    @Override
    public void reset() {
        solver.reset();
    }

    @Override
    public SolverStatus getStatus() {
        return solver.getStatus();
    }

    @Override
    public Valuation getModel() {
        return solver.getModel();
    }

    @Override
    public Collection> getAssertions() {
        return solver.getAssertions();
    }

    @Override
    public void close() throws Exception {
        solver.close();
    }
}