By Marc Frappier, Uwe Glässer, Sarfraz Khurshid, Régine Laleau, Steve Reeves
This publication constitutes the court cases of the second one overseas convention on summary nation Machines, B and Z, which came about in Orford, quality controls, Canada, in February 2010. The 26 complete papers offered have been conscientiously reviewed and chosen from 60 submissions. The e-book additionally comprises invited talks and abstracts of 18 brief papers which tackle paintings in growth, business adventure stories and power descriptions. The papers hide fresh advances in 4 both rigorous tools for software program and improvement: summary nation machines (ASM), Alloy, B and Z. They percentage a typical conceptual framework, headquartered round the notions of kingdom and operation, and advertise mathematical precision within the modeling, verification and building of hugely responsible platforms.
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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This booklet constitutes the refereed court cases of the seventeenth Brazilian Symposium on synthetic Intelligence, SBIA 2004, held in Sao Luis, Maranhao, Brazil in September/October 2004.
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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
In a ﬁrst paper  we presented the method, focussing on modeling the behavior of the clock process, more speciﬁcally the clock interrupt service routine, which interacts with a priority-based scheduler of device, system and user processes. The paper uses an abstract form of synchronous message passing. In this paper we show that a natural high-level speciﬁcation of synchronous message exchange which uses a direct wait control mechanism has a provably correct reﬁnement (in fact is equivalent to it) which uses semaphores to implement the wait control.
Thus it triggers an Enqueue(currp, semaq(s)) operation, blocking currp from entering the critical section until enough SignalSema(s) moves turn the content of semacount (s) into a non negative value. To prove the fairness property, assume that in a given state a process makes a WaitSema(s) move. If in this move, newcount is not negative, then the process is not Enqueued into the semaphore queue and thus can directly enter the critical section. Otherwise, the process is Enqueued into semaq(s) where, by the ﬁrst two fairness assumptions, it will eventually become the value of head (semaq(s)) and thus be made ready.
252–263. Springer, Heidelberg (2006) 8. : Formal Verification of Probabilistic Systems. PhD Thesis, Stanford University, Stanford, USA (1997) 9. : Non-Uniform Random Variate Generation. Springer, Heidelberg (1986) 10. : Advanced Probability Theory. , New York (1995) 11. : Mechanizing Programming Logics in Higher-Order Logic. In: Current Trends in Hardware Verification and Automated Theorem Proving, pp. 387– 439. Springer, Heidelberg (1989) 12. : Introduction to HOL: A Theorem Proving Environment for Higher-Order Logic.