--%>
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 : Define Object-oriented language

    Object-oriented language: Programming languages like Java and C++ which permit the solution to a trouble to be stated in terms of objects that belong to the classes.

    		•
  • Q : Define Assembler Assembler : The

    Assembler: The program employed to translate a program which is written in assembly language into the binary form of a specific instruction set.

    		•
  • Q : What is Bounded repetition Bounded

    Bounded repetition: The Repetition where statements within a loop's body are executed a fixed number of times and the number of times is established whenever the loop began. There is no control structure in Java which guarantees the bounded repetition

    		•
  • Q : Define the term Scheduler Define the

    Define the term Scheduler: The portion of the Java Virtual Machine (abbreviated as JVM) which is responsible for managing the threads.

    		•
  • Q : Explain Connection handshake Connection

    Connection handshake: It is the exchange of messages among two processes in an attempt to create a connection between them.

    		•
  • Q : Explain Aggregation Aggregation : It is

    Aggregation: It is a relationship in which an object has one or more other subordinate objects as portion of its state. The subordinate objects usually have no self-governing existence separate from their containing object. Whenever the containing obj

    		•
  • Q : Define Arithmetic operator Arithmetic

    Arithmetic operator: The Operators, like +, -, *, / and %, which generate a numerical outcome, as a part of an arithmetic expression.

    		•
  • Q : Explain If-else statement If-else

    If-else statement: It is a control structure employed to select between performing one of two alternative events.     if(boolean-expression){        // Statem

    		•
  • Q : Define way of kernel object outlive

    Explain the way of the kernel object outlive the process which created it.

    		•
  • Q : Phenomenon of page fault Explain the

    Explain the phenomenon of page fault?

    		•