--%>
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 : Describe the Binders Briefly describe

    Briefly describe the Binders?

    		•
  • Q : Scope resolution operator The scope

    		•
  • Q : Explain Try statement Try statement :

    Try statement: The try statement performs as an exception handler - a position where exception objects are caught and dealt with. In its most common form, it comprises of a try clause, one or more catch clauses and the finally clause.

    		•
  • Q : Template class and class template in

    Illustrate the difference between a template class and class template in the programming?

    		•
  • Q : Explain Branch instruction Branch

    Branch instruction: It stores a new instruction address into the program counter. The consequence of this is the next instruction to be fetched will not generally be the one instantly following the branch instruction. Therefore the normal chronologica

    		•
  • Q : What is Reflection Reflection : It is

    Reflection: It is the ability to find out what fields, methods, constructors, and so forth, are stated for an object or class. Reflection is supported by the Class ‘class’, and other classes in the java.lang.reflect package. Reflection mak

    		•
  • Q : Risks associated while porting a c pre

    Q. 1 Explain number of issues which are faced while porting a c pre processor in java. These issues always have the probability that the code will show errors while trying to execute the code in java.  Q.2 : Software Requirement Specification or Requirements for the studen

    		•
  • Q : Difference between JavaScript and AJAX

    Write basic difference between JavaScript and AJAX ?

    		•
  • Q : What is an Argument Argument : It is

    Argument: It is the information passed to a method. Arguments are as well sometimes termed as parameters. The method expecting to receive arguments should contain a formal argument declaration for each as portion of its method header. Whenever a metho

    		•
  • Q : ASP.NET Session handling How to set

    How to set Session time out in ASP.NET. I tries changing in config file but still facing issue. Please help..

    		•