org.sosy_lab.java_smt.solvers.boolector

Class BoolectorVariablesCache

java.lang.Object

org.sosy_lab.java_smt.solvers.boolector.BoolectorVariablesCache

public class BoolectorVariablesCache
extends Object

Boolector does not have an internal variables cache. Thus we need to check for existing symbols on our own. This utility class is a wrapper around some caches.

Method Summary

Modifier and Type	Method and Description
protected void	enterNewFormula(String btorName, String javasmtName, Long formula)
protected Long	getExistingFormula(String javaSMTVarName, long formulaSort) Checks whether or not there is a formula with that name and type, and gives it back if there is, null otherwise.
protected String	getJavaSMTVarName(String btorVarName) Gives back the variable name used in JavaSMT from the unique name in Boolector.
protected String	getNewVarName(String javaSMTVarName) Checks whether or not the varName is used and finds a new one.
protected boolean	isNameUsed(String varName) Checks if the name is already in use.

Methods inherited from class java.lang.Object

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

Method Detail

getNewVarName

protected String getNewVarName(String javaSMTVarName)

Checks whether or not the varName is used and finds a new one.

Parameters:

javaSMTVarName - variable name used in JavaSmt.

Returns:

new btor variable name if the input name is already used, the old one else.

getExistingFormula

@Nullable
protected Long getExistingFormula(String javaSMTVarName,
                                            long formulaSort)

Checks whether or not there is a formula with that name and type, and gives it back if there is, null otherwise.

Parameters:

javaSMTVarName - Name of the potentially new var in JavaSMT

formulaSort - sort of the new var

Returns:

null if there is none in the cache. The complete variable(not sort) else.

getJavaSMTVarName

protected String getJavaSMTVarName(String btorVarName)

Gives back the variable name used in JavaSMT from the unique name in Boolector.

Parameters:

btorVarName - unique variable name used in Boolector.

Returns:

variable name used in JavaSMT.

isNameUsed

protected boolean isNameUsed(String varName)

Checks if the name is already in use. Return false if not.

Parameters:

varName - name to be checked

Returns:

true if name is already in use, false otherwise.

enterNewFormula

protected void enterNewFormula(String btorName,
                               String javasmtName,
                               Long formula)

Parameters:

btorName - unique variable name in Boolector

javasmtName - name in JavaSMT

formula - the formula (long)