org.sosy_lab.java_smt.api

Interface Formula

All Known Subinterfaces:

ArrayFormula<TI,TE>, BitvectorFormula, BooleanFormula, FloatingPointFormula, FloatingPointRoundingModeFormula, NumeralFormula, NumeralFormula.IntegerFormula, NumeralFormula.RationalFormula

@Immutable
public interface Formula

An arbitrary SMT formula.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object other) checks whether the other object is a formula of the same structure.
int	hashCode() returns a valid hashCode satisfying the constraints given by equals(java.lang.Object).
String	toString() returns an arbitrary representation of the formula, might be human- or machine-readable.

Method Detail

toString

String toString()

returns an arbitrary representation of the formula, might be human- or machine-readable.

We do not guarantee that the returned String is in any way related to the formula. The solver might apply escaping or even un-escaping. A user should not use the returned String for further processing. For analyzing formulas, we recommend to use a FormulaVisitor.

Overrides:

toString in class Object

equals

boolean equals(Object other)

checks whether the other object is a formula of the same structure. Does not apply an expensive SAT-check to check equisatisfiability.

Two formulas that are structured in the same way, are determined as "equal". Due to transformations and simplifications, two equisatisfiable formulas with different structure might not be determined as "equal".

Overrides:

equals in class Object

hashCode

int hashCode()

returns a valid hashCode satisfying the constraints given by equals(java.lang.Object).

Overrides:

hashCode in class Object