--%>
Assignment Help - homework help

Define Heap Abstractions

Heap Abstractions: The class abstractions that we discussed above are obtained by abstracting each field of base type. The number of instances of that particular class still needs to be bounded; this results in an under-approximation that is still useful for finding bugs. Heap abstractions, on the other hand, abstract the portion of the heap that stores instances of one particular class; therefore, heap abstractions can handle an unbounded number of dynamically allocated objects. These abstractions represent heap cells by shape nodes and sets of indistinguishable runtime locations by a single shape node, called a summary node. For example, a heap abstraction will keep concrete information about memory cells that are directly pointed to by local variables and merge all the memory cells that are not pointed to by a program variable into a summary heap node. Heap abstractions are most often used in static analysis tools, but they are starting to be used in software model-checking approaches.

   Related Questions in Programming Languages

  • Q : Criticizing CORBA technology Criticize

    Criticize the process by which the CORBA technology was designed and implemented.

    		•
  • Q : Libraries involved in Windows

    Explain the important libraries involved in Windows programming?

    		•
  • Q : Use the Processing program for the

    1. Here is a short program. It prints out the value of a variable "x". Ernie and Bert disagree about what will be printed: Ernie says, the value gets changed in "changeX" so it will print "7", and Bert says, no, when the function exits the changes get reversed and the value goes back to "5". Expl

    		•
  • Q : Define Uniform Resource Locator Uniform

    Uniform Resource Locator: It is a Uniform Resource Locator (abbreviated as URL) expands the concept of file access from a wholly local context to one in which the resources are named uniformly, irrespective of where they may be physically situated. A

    		•
  • Q : CSS and CSS3 State some of the

    State some of the difference between the CSS and the CSS3.

    		•
  • Q : Define the term core validation Define

    Define the term core validation?

    		•
  • Q : Define Final variable Final variable :

    Final variable: A variable with final reserved word in its declaration. The final might not assigned to once it has been initialized. Initialization frequently occurs as a part of its declaration. Though, the initialization of an uninitialized final f

    		•
  • Q : Define several features of XQuery

    Define several features of XQuery?

    		•
  • Q : Define Constant Constant : It is the

    Constant: It is the memory block where value can be stored once although can’t modify later on throughout program execution. Example: const int pi =3.14;

    		•
  • Q : Define Divide and conquer Divide and

    Divide and conquer: An approach to trouble solving which attempts to decrease an overall single big trouble into multiple simpler troubles.

    		•