6433387082

Committed 06 Oct 2023 03:10PM UTC coverage: 92.296% (-0.007%) from 92.303%

Build # 6433387082

Build Type

push

github

Committed by

mtf90

Commit Message

update Falk's developer id

Run Details

11573 of 12539 relevant lines covered (92.3%)

1.67 hits per line

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90.0

/oracles/equivalence-oracles/src/main/java/de/learnlib/oracle/equivalence/vpa/SimulatorEQOracle.java

/* Copyright (C) 2013-2023 TU Dortmund
 * This file is part of LearnLib, http://www.learnlib.de/.
 *
 * 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 de.learnlib.oracle.equivalence.vpa;

import java.util.Collection;

import de.learnlib.api.oracle.EquivalenceOracle;
import de.learnlib.api.query.DefaultQuery;
import net.automatalib.automata.vpa.OneSEVPA;
import net.automatalib.util.automata.Automata;
import net.automatalib.words.VPAlphabet;
import net.automatalib.words.Word;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * An equivalence oracle based on the computation of a separating word for a given hypothesis and a previously known
 * target system.
 */
public class SimulatorEQOracle<I> implements EquivalenceOracle<OneSEVPA<?, I>, I, Boolean> {

    private final OneSEVPA<?, I> reference;

    public SimulatorEQOracle(OneSEVPA<?, I> reference) {
        this.reference = reference;
    }

    @Override
    public @Nullable DefaultQuery<I, Boolean> findCounterExample(OneSEVPA<?, I> hypothesis,
                                                                 Collection<? extends I> inputs) {
        if (!(inputs instanceof VPAlphabet)) {
            throw new IllegalArgumentException("Inputs are not a visibly push-down alphabet");
        }

        @SuppressWarnings("unchecked")
        final VPAlphabet<I> alphabet = (VPAlphabet<I>) inputs;

        final Word<I> sep = Automata.findSeparatingWord(reference, hypothesis, alphabet);

        if (sep == null) {
            return null;
        }

        return new DefaultQuery<>(sep, reference.computeOutput(sep));
    }
}

1	/* Copyright (C) 2013-2023 TU Dortmund
2	* This file is part of LearnLib, http://www.learnlib.de/.
3	*
4	* Licensed under the Apache License, Version 2.0 (the "License");
5	* you may not use this file except in compliance with the License.
6	* You may obtain a copy of the License at
7	*
8	* http://www.apache.org/licenses/LICENSE-2.0
9	*
10	* Unless required by applicable law or agreed to in writing, software
11	* distributed under the License is distributed on an "AS IS" BASIS,
12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	* See the License for the specific language governing permissions and
14	* limitations under the License.
15	*/
16	package de.learnlib.oracle.equivalence.vpa;
17
18	import java.util.Collection;
19
20	import de.learnlib.api.oracle.EquivalenceOracle;
21	import de.learnlib.api.query.DefaultQuery;
22	import net.automatalib.automata.vpa.OneSEVPA;
23	import net.automatalib.util.automata.Automata;
24	import net.automatalib.words.VPAlphabet;
25	import net.automatalib.words.Word;
26	import org.checkerframework.checker.nullness.qual.Nullable;
27
28	/**
29	* An equivalence oracle based on the computation of a separating word for a given hypothesis and a previously known
30	* target system.
31	*/
32	public class SimulatorEQOracle<I> implements EquivalenceOracle<OneSEVPA<?, I>, I, Boolean> {
33
34	private final OneSEVPA<?, I> reference;
35
36	public SimulatorEQOracle(OneSEVPA<?, I> reference) {	1✔
37	this.reference = reference;	1✔
38	}	1✔
39
40	@Override
41	public @Nullable DefaultQuery<I, Boolean> findCounterExample(OneSEVPA<?, I> hypothesis,
42	Collection<? extends I> inputs) {
43	if (!(inputs instanceof VPAlphabet)) {	1✔
44	throw new IllegalArgumentException("Inputs are not a visibly push-down alphabet");	×
45	}
46
47	@SuppressWarnings("unchecked")
48	final VPAlphabet<I> alphabet = (VPAlphabet<I>) inputs;	1✔
49
50	final Word<I> sep = Automata.findSeparatingWord(reference, hypothesis, alphabet);	1✔
51
52	if (sep == null) {	1✔
53	return null;	1✔
54	}
55
56	return new DefaultQuery<>(sep, reference.computeOutput(sep));	1✔
57	}
58	}

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