Abstract State Machines, Alloy, B and Z: Second by Daniel Jackson, Eunsuk Kang (auth.), Marc Frappier, Uwe

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By Daniel Jackson, Eunsuk Kang (auth.), Marc Frappier, Uwe Glässer, Sarfraz Khurshid, Régine Laleau, Steve Reeves (eds.)

This publication constitutes the lawsuits of the second one overseas convention on summary country Machines, B and Z, which came about in Orford, quality control, Canada, in February 2010. The 26 complete papers awarded have been rigorously reviewed and chosen from 60 submissions. The publication additionally includes invited talks and abstracts of 18 brief papers which deal with paintings in growth, commercial event studies and power descriptions. The papers hide fresh advances in 4 both rigorous tools for software program and improvement: summary kingdom machines (ASM), Alloy, B and Z. They percentage a standard conceptual framework, founded round the notions of country and operation, and advertise mathematical precision within the modeling, verification and development of hugely in charge structures.

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Read or Download Abstract State Machines, Alloy, B and Z: Second International Conference, ABZ 2010, Orford, QC, Canada, February 22-25, 2010. Proceedings PDF

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

Sample text

DeliverMsg is defined as for ReceiveCtl . Synchronous Message Passing and Semaphores: An Equivalence Proof 31 ReceiverStarts: dest has made a ReceiveSema (dest ) move which is followed by a (first) StartSend&WaitSema (m, src, dest ) move that does not Enqueue src into the insema(dest )-queue. SenderStarts implies that, from its StartSend&WaitSema (m, src, dest ) move until reaching the synchronization point, src stayed in the insema(dest )-queue without making any further move. ReceiverStarts implies that between the two moves ReceiveSema (dest ) and StartSend&WaitSema (m, src, dest ), dest has made no move; it will be Dequeued from the outsema(dest )-queue by the subsequent src-move PassMsgSema (src, dest ).

Run to completion semantics. – It extends the ongoing research towards the construction of a formal framework for the Use Case Maps language [1] to describe, simulate and analyze real-time systems [2,6,3,4]. The remainder of this paper is organized as follows. The next section describes and discusses some related work. In an attempt to make this paper self-contained, we provide in Section 3 a brief overview of the UCM time extensions introduced in Hassine et al. [2]. Section 4 represents the core of our paper, where we present three AsmL-based simulation engines for timed UCM models.

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.

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