Abstract State Machines, Alloy, B and Z: Second by Marc Frappier, Uwe Glässer, Sarfraz Khurshid, Régine Laleau,

Machine Theory

By Marc Frappier, Uwe Glässer, Sarfraz Khurshid, Régine Laleau, Steve Reeves

This e-book constitutes the complaints of the second one foreign convention on summary nation Machines, B and Z, which came about in Orford, quality control, Canada, in February 2010. The 26 complete papers provided have been conscientiously reviewed and chosen from 60 submissions. The ebook additionally includes invited talks and abstracts of 18 brief papers which tackle paintings in development, commercial event studies and power descriptions. The papers hide fresh advances in 4 both rigorous tools for software program and improvement: summary country machines (ASM), Alloy, B and Z. They proportion a standard conceptual framework, based round the notions of nation and operation, and advertise mathematical precision within the modeling, verification and development of hugely in charge platforms.

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Extra info for Abstract State Machines, Alloy, B and Z: Second International Conference, ABZ 2010, Orford, QC, Canada, February 22-25, 2010, Proceedings

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The main reason being that the foundational measure and probability theories were formalized in HOL first [26] and then the rest of the infrastructure kept building upon that. Though, it is important to note that the presented methodologies and framework are not specific to the HOL theorem prover and can be adapted to any other higher-order-logic theorem prover, such as Isabelle, Coq or PVS, as well. The theorem proving based probabilistic analysis framework can no way be considered to be mature enough to be able to handle all kind of problems.

Then the scheduler, which is assumed to be fair, will eventually schedule it, so that the process, from the point where it was suspended by its WaitSema(s) move, does enter the critical section. ✷ 5 Semaphore-Based Synchronous Messages In this section, we define a specification MsgPassSema of synchronous message passing using semaphores, which can be viewed as a refinement of MsgPassCtl . e. a semaphore-based solution with minimal assumptions. We then define the meaning of correctness of MsgPassSema and provide a direct proof for the correctness theorem.

For example, the function GetDelayTargetConstruct is used to capture the delay associated with the next timed UCM construct to be executed. // GetInHyperEdge returns the set of incoming edges of a timed UCM construct GetInHyperEdge (i as UCMConstruct ) as Set of HyperEdge match i R_Construct (a,b,c,d,e,f): return {a} return {a} AF_Construct (a,b,c,d,e): AJ_Construct (a,b,c,d,e): return a . . target) ifnone WriteLine (“\n GetDelayTargetConstruct FAILED” ) return 0 // Compute minimum delay ComputeMinimumDelay (i as UCMConstruct ) as Integer match i SP_Construct (a,b,c,d,e,f): return e return d R_Construct (a,b,c,d,e,f): AF_Construct (a,b,c,d,e): return 0 ...

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