Package org.sosy_lab.java_smt.api.visitors

Class BooleanFormulaTransformationVisitor

java.lang.Object

org.sosy_lab.java_smt.api.visitors.BooleanFormulaTransformationVisitor

All Implemented Interfaces:

BooleanFormulaVisitor<BooleanFormula>

Direct Known Subclasses:

NNFVisitor

public abstract class BooleanFormulaTransformationVisitor
extends Object
implements BooleanFormulaVisitor<BooleanFormula>

Base class for visitors for boolean formulas that recursively transform boolean formulas.

See Also:

• BooleanFormulaManager.transformRecursively(org.sosy_lab.java_smt.api.BooleanFormula, org.sosy_lab.java_smt.api.visitors.BooleanFormulaTransformationVisitor)

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BooleanFormulaTransformationVisitor(FormulaManager pMgr)

Method Summary

Modifier and Type	Method	Description
BooleanFormula	visitAnd(List<BooleanFormula> processedOperands)	Visit an AND-expression with an arbitrary number of boolean arguments.
BooleanFormula	visitAtom(BooleanFormula pAtom, FunctionDeclaration<BooleanFormula> decl)	Visit an SMT atom.
BooleanFormula	visitBoundVar(BooleanFormula var, int deBruijnIdx)	Visit a boolean variable bound by a quantifier.
BooleanFormula	visitConstant(boolean value)	Visit a constant with a given value.
BooleanFormula	visitEquivalence(BooleanFormula processedOperand1, BooleanFormula processedOperand2)	Visit an equivalence between two formulas of boolean sort: operand1 = operand2.
BooleanFormula	visitIfThenElse(BooleanFormula processedCondition, BooleanFormula processedThenFormula, BooleanFormula processedElseFormula)	Visit an if-then-else expression.
BooleanFormula	visitImplication(BooleanFormula processedOperand1, BooleanFormula processedOperand2)	Visit an implication.
BooleanFormula	visitNot(BooleanFormula processedOperand)	Visit a NOT-expression.
BooleanFormula	visitOr(List<BooleanFormula> processedOperands)	Visit an OR-expression with an arbitrary number of boolean arguments.
BooleanFormula	visitQuantifier(QuantifiedFormulaManager.Quantifier quantifier, BooleanFormula quantifiedAST, List<Formula> boundVars, BooleanFormula processedBody)	Visit a quantifier: forall- or exists-.
BooleanFormula	visitXor(BooleanFormula processedOperand1, BooleanFormula processedOperand2)	Visit a XOR-expression.

Methods inherited from class java.lang.Object

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

Constructor Details

BooleanFormulaTransformationVisitor

protected BooleanFormulaTransformationVisitor(FormulaManager pMgr)

Method Details

visitConstant

public BooleanFormula visitConstant(boolean value)

Description copied from interface: BooleanFormulaVisitor

Visit a constant with a given value.

Specified by:

visitConstant in interface BooleanFormulaVisitor<BooleanFormula>

See Also:

• BooleanFormulaManager.makeBoolean(boolean)

visitBoundVar

public BooleanFormula visitBoundVar(BooleanFormula var,
 int deBruijnIdx)

Description copied from interface: BooleanFormulaVisitor

Visit a boolean variable bound by a quantifier.

Specified by:

visitBoundVar in interface BooleanFormulaVisitor<BooleanFormula>

visitAtom

public BooleanFormula visitAtom(BooleanFormula pAtom,
 FunctionDeclaration<BooleanFormula> decl)

Description copied from interface: BooleanFormulaVisitor

Visit an SMT atom. An atom can be a theory expression, constant, or a variable.

This is anything with a boolean sort which is not covered by the cases above.

Specified by:

visitAtom in interface BooleanFormulaVisitor<BooleanFormula>

visitNot

public BooleanFormula visitNot(BooleanFormula processedOperand)

Description copied from interface: BooleanFormulaVisitor

Visit a NOT-expression.

Specified by:

visitNot in interface BooleanFormulaVisitor<BooleanFormula>

Parameters:

processedOperand - Negated term.

See Also:

• BooleanFormulaManager.not(org.sosy_lab.java_smt.api.BooleanFormula)

visitAnd

public BooleanFormula visitAnd(List<BooleanFormula> processedOperands)

Description copied from interface: BooleanFormulaVisitor

Visit an AND-expression with an arbitrary number of boolean arguments.

An AND-expression with zero arguments is equisatisfiable to 'TRUE'. An AND-expression with one argument is equal to the argument itself. In all other cases, default boolean logic applies.

Specified by:

visitAnd in interface BooleanFormulaVisitor<BooleanFormula>

See Also:

• BooleanFormulaManager.and(org.sosy_lab.java_smt.api.BooleanFormula, org.sosy_lab.java_smt.api.BooleanFormula)

visitOr

public BooleanFormula visitOr(List<BooleanFormula> processedOperands)

Description copied from interface: BooleanFormulaVisitor

Visit an OR-expression with an arbitrary number of boolean arguments.

An OR-expression with zero arguments is equisatisfiable to 'TRUE'. An OR-expression with one argument is equal to the argument itself. In all other cases, default boolean logic applies.

Specified by:

visitOr in interface BooleanFormulaVisitor<BooleanFormula>

See Also:

• BooleanFormulaManager.or(org.sosy_lab.java_smt.api.BooleanFormula, org.sosy_lab.java_smt.api.BooleanFormula)

visitXor

public BooleanFormula visitXor(BooleanFormula processedOperand1,
 BooleanFormula processedOperand2)

Description copied from interface: BooleanFormulaVisitor

Visit a XOR-expression.

Specified by:

visitXor in interface BooleanFormulaVisitor<BooleanFormula>

See Also:

• BooleanFormulaManager.xor(org.sosy_lab.java_smt.api.BooleanFormula, org.sosy_lab.java_smt.api.BooleanFormula)

visitEquivalence

public BooleanFormula visitEquivalence(BooleanFormula processedOperand1,
 BooleanFormula processedOperand2)

Description copied from interface: BooleanFormulaVisitor

Visit an equivalence between two formulas of boolean sort: operand1 = operand2.

Specified by:

visitEquivalence in interface BooleanFormulaVisitor<BooleanFormula>

See Also:

• BooleanFormulaManager.equivalence(org.sosy_lab.java_smt.api.BooleanFormula, org.sosy_lab.java_smt.api.BooleanFormula)

visitImplication

public BooleanFormula visitImplication(BooleanFormula processedOperand1,
 BooleanFormula processedOperand2)

Description copied from interface: BooleanFormulaVisitor

Visit an implication.

Specified by:

visitImplication in interface BooleanFormulaVisitor<BooleanFormula>

See Also:

• BooleanFormulaManager.implication(org.sosy_lab.java_smt.api.BooleanFormula, org.sosy_lab.java_smt.api.BooleanFormula)

visitIfThenElse

public BooleanFormula visitIfThenElse(BooleanFormula processedCondition,
 BooleanFormula processedThenFormula,
 BooleanFormula processedElseFormula)

Description copied from interface: BooleanFormulaVisitor

Visit an if-then-else expression.

Specified by:

visitIfThenElse in interface BooleanFormulaVisitor<BooleanFormula>

See Also:

• BooleanFormulaManager.ifThenElse(org.sosy_lab.java_smt.api.BooleanFormula, T, T)

visitQuantifier

public BooleanFormula visitQuantifier(QuantifiedFormulaManager.Quantifier quantifier,
 BooleanFormula quantifiedAST,
 List<Formula> boundVars,
 BooleanFormula processedBody)

Description copied from interface: BooleanFormulaVisitor

Visit a quantifier: forall- or exists-.

Specified by:

visitQuantifier in interface BooleanFormulaVisitor<BooleanFormula>

Parameters:

quantifier - Quantifier type: FORALL- or EXISTS-

quantifiedAST - AST of the quantified node. Provided because it is difficult to re-create from the parameters.

boundVars - Variables bound by this quantifier.

processedBody - Body of the quantified expression.

See Also:

• QuantifiedFormulaManager.mkQuantifier(org.sosy_lab.java_smt.api.QuantifiedFormulaManager.Quantifier, java.util.List<? extends org.sosy_lab.java_smt.api.Formula>, org.sosy_lab.java_smt.api.BooleanFormula)
• QuantifiedFormulaManager.forall(java.util.List<? extends org.sosy_lab.java_smt.api.Formula>, org.sosy_lab.java_smt.api.BooleanFormula)
• QuantifiedFormulaManager.exists(java.util.List<? extends org.sosy_lab.java_smt.api.Formula>, org.sosy_lab.java_smt.api.BooleanFormula)