de.uka.ilkd.key.strategy.quantifierHeuristics

Class LiteralsSmallerThanFeature

java.lang.Object

de.uka.ilkd.key.strategy.feature.BinaryFeature

de.uka.ilkd.key.strategy.feature.BinaryTacletAppFeature

de.uka.ilkd.key.strategy.feature.SmallerThanFeature

de.uka.ilkd.key.strategy.quantifierHeuristics.LiteralsSmallerThanFeature

All Implemented Interfaces:

Feature

public class LiteralsSmallerThanFeature
extends SmallerThanFeature

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private class	LiteralsSmallerThanFeature.LiteralCollector
private class	LiteralsSmallerThanFeature.MonomialIterator

Nested classes/interfaces inherited from class de.uka.ilkd.key.strategy.feature.SmallerThanFeature

SmallerThanFeature.Collector

Field Summary

Fields

Modifier and Type	Field and Description
private ProjectionToTerm	left
private IntegerLDT	numbers
private QuanEliminationAnalyser	quanAnalyser
private ProjectionToTerm	right

Fields inherited from class de.uka.ilkd.key.strategy.feature.BinaryFeature

TOP_COST, ZERO_COST

Constructor Summary

Constructors

Modifier	Constructor and Description
private	LiteralsSmallerThanFeature(ProjectionToTerm left, ProjectionToTerm right, IntegerLDT numbers)

Method Summary

Modifier and Type	Method and Description
private int	comparePolynomials(Term t1, Term t2)
protected boolean	compareTerms(Term leftTerm, Term rightTerm, PosInOccurrence pos, Goal goal)
static Feature	create(ProjectionToTerm left, ProjectionToTerm right, IntegerLDT numbers)
private Term	discardNegation(Term t)
protected boolean	filter(TacletApp app, PosInOccurrence pos, Goal goal) Compute whether the result of the feature is zero (true) or infinity (false)
private int	formulaKind(Term t)
private boolean	isBinaryIntRelation(Term t)
protected boolean	lessThan(Term t1, Term t2, PosInOccurrence focus, Goal goal) this overwrites the method of SmallerThanFeature

Methods inherited from class de.uka.ilkd.key.strategy.feature.SmallerThanFeature

compare, lessThan

Methods inherited from class de.uka.ilkd.key.strategy.feature.BinaryTacletAppFeature

filter

Methods inherited from class de.uka.ilkd.key.strategy.feature.BinaryFeature

computeCost

Methods inherited from class java.lang.Object

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

Field Detail

left

private final ProjectionToTerm left

right

private final ProjectionToTerm right

numbers

private final IntegerLDT numbers

quanAnalyser

private final QuanEliminationAnalyser quanAnalyser

Constructor Detail

LiteralsSmallerThanFeature

private LiteralsSmallerThanFeature(ProjectionToTerm left,
                                   ProjectionToTerm right,
                                   IntegerLDT numbers)

Method Detail

create

public static Feature create(ProjectionToTerm left,
                             ProjectionToTerm right,
                             IntegerLDT numbers)

filter

protected boolean filter(TacletApp app,
                         PosInOccurrence pos,
                         Goal goal)

Description copied from class: BinaryTacletAppFeature

Compute whether the result of the feature is zero (true) or infinity (false)

Specified by:

filter in class BinaryTacletAppFeature

Parameters:

app - the TacletApp

pos - position where app is to be applied

goal - the goal on which app is to be applied

Returns:

true iff the the result of the feature is supposed to be zero.

compareTerms

protected boolean compareTerms(Term leftTerm,
                               Term rightTerm,
                               PosInOccurrence pos,
                               Goal goal)

lessThan

protected boolean lessThan(Term t1,
                           Term t2,
                           PosInOccurrence focus,
                           Goal goal)

this overwrites the method of SmallerThanFeature

Overrides:

lessThan in class SmallerThanFeature

comparePolynomials

private int comparePolynomials(Term t1,
                               Term t2)

discardNegation

private Term discardNegation(Term t)

isBinaryIntRelation

private boolean isBinaryIntRelation(Term t)

formulaKind

private int formulaKind(Term t)