--%>
Assignment Help - homework help

Search and Coverage of SPIN

Search and Coverage of SPIN: SPIN has a highly optimized state exploration algorithm. It supports random, interactive and guided simulation, and both exhaustive and partial coverage, based on either depth-first or breadth-first search.

To reduce the problem of running out of memory storing the states that have been visited (so that the search will not explore them again), SPIN provides an option called bitstate hashing, also known as supertrace. Bitstate hashing uses memory as a bit vector. When a state is visited during SPIN’s exploration, its state vector is hashed to a bit in memory: the bit indicates whether the state has been visited previously. If a different state vector hashes to the same bit location, SPIN will erroneously conclude that the state has been visited and will terminate exploration from that state. This may lead to false negatives (errors may not be found), but not false positives (no false error reports).

Paradoxically, using the bitstate option may lead to increased coverage of the state space, because more of it can be explored in the given amount of memory.

   Related Questions in Programming Languages

  • Q : Explain the way to start a Web Service

    Explain the way to start a Web Service.

    		•
  • Q : What is decimal Decimal: The number

    Decimal: The number representation in decimal is base 10. In base 10, the digits 0 to 9 are utilized. Digit positions symbolize successive powers of 10.

    		•
  • Q : What is an Assembly language Assembly

    Assembly language: This is a symbolic language closely analogous to the instruction set of a Central Processing Unit. The program employed to translate a program written in assembly language is termed an assembler.

    		•
  • Q : Various controls of ASP.NET AJAX Name

    Name the various controls of ASP.NET AJAX?

    		•
  • Q : How can Corba application has call back

    Describe how can Corba application has call back?

    		•
  • Q : Explain the differences between HTML

    Explain the differences between HTML and XML?

    		•
  • Q : Explain Multiple inheritance Multiple

    Multiple inheritance: The capability of a class or interface to expand more than one interface or class. In Java, multiple inheritance is only accessible in the circumstances which are shown below: An interf

    		•
  • Q : Define Loop variable Loop variable : A

    Loop variable: A variable employed to control the operation of a loop, like a for loop. Usually, a loop variable will be provided an initial value and it is then incremented after each and every iteration till it passes or reaches a terminating value.

    		•
  • Q : Define Passing by value Passing by

    Passing by value: In this process separate memory builds for formal arguments and when any modifications done on formal variables, it will not influence the real variables. Therefore actual variables are preserved in this situation.

    		•
  • Q : Define Statement Statement : The

    Statement: The fundamental building block of Java method. There are numerous different kinds of statement in Java, for example, the assignment statement, if statement, while loop and return statement.

    		•