--%>

State-space Reduction in Promela model

State-space Reduction: Two language statements are used to reduce the number of states in a Promela model: atomic and d-step.

1553_state space.jpg

Atomic is used to group statements of a particular process into one atomic sequence. The statements are executed in a single step and are not interleaved with statements of other processes. The atomicity is broken if any of the statements is blocking. That is, statements of other processes can be interleaved in between.

d-step can also be used to execute a number of statements in one step. The difference is that no intermediate states are generated or stored. If one of the statements blocks, this is considered a runtime error.

   Related Questions in Programming Languages

  • Q : Web based programming homework

    Component 2 Task b: Task Description Computing students at this University who study on undergraduate courses require a method to view their module marks and to see how they are progressing on the module. You have been asked to develop a web

  • Q : Explain Coupling Coupling : Coupling

    Coupling: Coupling occurs whenever classes are aware of each of other as their instances should interact. The linkage between two classes which might be either weak or strong. Stronger coupling occurs whenever one class has a thorough knowledge of the

  • Q : Explain VeriSoft VeriSoft (Godefroid,

    VeriSoft (Godefroid, 2005) is a model checker for C and C++; other languages can be used, but components in other languages are treated as black boxes. VeriSoft has been used to find defects in very large telecommunications programs (Chandra, Godefroi

  • Q : What is an Operand Operand : An operand

    Operand: An operand is an argument of the operator. Expressions comprise combinations of operands and operators. The value of an expression is determined by exerting the operation stated by each and every operator to the value of its operands.

  • Q : Define the term Peripheral devices

    Define the term Peripheral devices: It is the devices attached to a computer, like disk drives, printers, mice, and so forth.

  • Q : Explain Declaration and initialization

    Declaration and initialization: It is a statement in which a variable is declared and instantly given its initial value. Three illustrations of declaration and initialization are as follows:     int

  • Q : Explain LURCH LURCH (Menzies et al.

    LURCH (Menzies et al. 2004) uses random search to explore a state machine’s state space. Because the search is random, it gives no guarantee that the state space has been exhaustively explored, so LURCH cannot be used for verification. However,

  • Q : Define the term Nested class Define the

    Define the term Nested class:  It is a class stated within an enclosing class.

  • Q : Explain the purpose of using XML

    Explain the purpose of using XML.

  • Q : Recursive Matlab function Write a

    Write a recursive Matlab function TriUVRCol that solves a virtually upper triangular system of equations accessing the matrix by column. Write another recursive Matlab function LUPivRec that recursively computes the LU decomposition of a matrix using partial pivoting.