de.uka.ilkd.key.rule.join.procedures

Class JoinWithSignLattice

java.lang.Object

de.uka.ilkd.key.rule.join.JoinProcedure

de.uka.ilkd.key.rule.join.procedures.JoinWithLatticeAbstraction

de.uka.ilkd.key.rule.join.procedures.JoinWithSignLattice

public class JoinWithSignLattice
extends JoinWithLatticeAbstraction

Rule that joins two sequents based on a sign lattice for integers. Boolean variables are joined with a simple lattice for booleans. Program variables of other types than int and boolean are unchanged if they are equal in both states and set to fresh variables if they have different values. TODO: Could also add a null / non-null lattice for objects.

Author:

Dominic Scheurer

Field Summary

Fields

Modifier and Type	Field and Description
private static String	DISPLAY_NAME
private static JoinWithSignLattice	INSTANCE

Constructor Summary

Constructors

Constructor and Description
JoinWithSignLattice()

Method Summary

Modifier and Type	Method and Description
protected AbstractDomainLattice<?>	getAbstractDomainForSort(Sort s, Services services) Returns the abstract domain lattice for the given sort or null if there has no lattice been specified for that sort.
static JoinWithSignLattice	instance()
String	toString()

Methods inherited from class de.uka.ilkd.key.rule.join.procedures.JoinWithLatticeAbstraction

joinValuesInStates, requiresDistinguishablePathConditions

Methods inherited from class de.uka.ilkd.key.rule.join.JoinProcedure

getJoinProcedures, getProcedureByName

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

private static JoinWithSignLattice INSTANCE

DISPLAY_NAME

private static final String DISPLAY_NAME

See Also:

Constant Field Values

Constructor Detail

JoinWithSignLattice

public JoinWithSignLattice()

Method Detail

instance

public static JoinWithSignLattice instance()

getAbstractDomainForSort

protected AbstractDomainLattice<?> getAbstractDomainForSort(Sort s,
                                                            Services services)

Description copied from class: JoinWithLatticeAbstraction

Returns the abstract domain lattice for the given sort or null if there has no lattice been specified for that sort.

Specified by:

getAbstractDomainForSort in class JoinWithLatticeAbstraction

Parameters:

s - The sort to return the matching lattice for.

services - The services object.

Returns:

The abstract domain lattice suitable for the given sort.

toString

public String toString()

Overrides:

toString in class Object