--%>

Explain Counters

Counter variables are commonly used in many computer applications for different purposes. Here is a typical example where a variable is used to measures the progress of some activity of interest:

1146_counter1.jpg

If the exact value of the progress variable or the entire range of its values is not really required for checking the property of interest, then the use of this variable can cause unnecessary (potentially infinite) state space expansion. In this case, the progress variable can be reduced to a Boolean variable:

80_counter2.jpg

This modification immediately cuts down the number of states that need to be explored for this piece of code from ((2*MAXINT)+1)2 to only two possibilities: the progress variable taking only the value of true or false. Such small modifications can lead to exponential improvements in memory and time for a model checker.

   Related Questions in Programming Languages

  • Q : Explain Fully qualified class name

    Fully qualified class name: The name of a class, comprising any package name and including class name. The class outline is as follows:     package oddments;    class Outer

  • Q : Explain Enumerated type Enumerated type

    Enumerated type: A data type-not directly accessible in Java - in which symbolic names are employed for a series of constant numeric values. They facilitate the evading of magic numbers. They can be simulated in the Java with fields i

  • Q : Define the term SOAP Define the term

    Define the term SOAP.

  • Q : Define Context Normal 0 false false

    Normal 0 false false

  • Q : What are collections and generics What

    What are collections and generics?

  • Q : What is Parsing Parsing : Generally

    Parsing: Generally applied to the action of a compiler in examining a program source file for syntax errors. This is too employed more broadly to mean the analysis of the structure of input.

  • Q : What is Factory pattern Factory pattern

    Factory pattern: A pattern of class definition which is employed as a generator of instances of other classes. Frequently employed to form platform- or locale-particular implementations of abstract classes or interfaces. This decreases coupling betwee

  • Q : Describe Throw an exception Throw an

    Throw an exception: Whenever an exceptional circumstance occurs in a program - frequently as an outcome of a logical error and exception object is formed and thrown. When the exception is not caught by an exception handler, the program will finish wit

  • Q : Define Class scope Class scope :

    Class scope: Private variables stated outside the methods in a class contain class scope. They are available from all methods within a class, in spite of the order in which they are stated. The private methods too contain class scope. Variables and me

  • Q : Define debugging of joomla extension

    Define debugging of joomla extension.