de.learnlib.oracle.equivalence

Class SimpleEQOracle<A extends net.automatalib.automata.concepts.InputAlphabetHolder<I>,I,D>

java.lang.Object

de.learnlib.oracle.equivalence.SimpleEQOracle<A,I,D>

All Implemented Interfaces:

EquivalenceOracle<A,I,D>

public class SimpleEQOracle<A extends net.automatalib.automata.concepts.InputAlphabetHolder<I>,I,D>
extends Object
implements EquivalenceOracle<A,I,D>

Nested Class Summary

Nested classes/interfaces inherited from interface de.learnlib.api.oracle.EquivalenceOracle

EquivalenceOracle.DFAEquivalenceOracle<I>, EquivalenceOracle.MealyEquivalenceOracle<I,O>

Constructor Summary

Constructors

Constructor and Description
SimpleEQOracle(EquivalenceOracle<A,I,D> eqOracle)

Method Summary

Modifier and Type	Method and Description
static <A extends net.automatalib.automata.concepts.InputAlphabetHolder<I>,I,D> SimpleEQOracle<A,I,D>	create(EquivalenceOracle<A,I,D> eqOracle)
DefaultQuery<I,D>	findCounterExample(A hypothesis, Collection<? extends I> inputs) Searches for a counterexample disproving the subjected hypothesis.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SimpleEQOracle

public SimpleEQOracle(EquivalenceOracle<A,I,D> eqOracle)

Method Detail

create

public static <A extends net.automatalib.automata.concepts.InputAlphabetHolder<I>,I,D> SimpleEQOracle<A,I,D> create(EquivalenceOracle<A,I,D> eqOracle)

findCounterExample

@Nullable
public DefaultQuery<I,D> findCounterExample(A hypothesis,
                                                      Collection<? extends I> inputs)

Description copied from interface: EquivalenceOracle

Searches for a counterexample disproving the subjected hypothesis. A counterexample is query which, when performed on the SUL, yields a different output than what was predicted by the hypothesis. If no counterexample could be found (this does not necessarily mean that none exists), null is returned.

Specified by:

findCounterExample in interface EquivalenceOracle<A extends net.automatalib.automata.concepts.InputAlphabetHolder<I>,I,D>

Parameters:

hypothesis - the conjecture

inputs - the set of inputs to consider, this should be a subset of the input alphabet of the provided hypothesis

Returns:

a query exposing different behavior, or null if no counterexample could be found. In case a non-null value is returned, the output field in the DefaultQuery contains the SUL output for the respective query.