By Egon Börger, Antonio Cisternino, Vincenzo Gervasi (auth.), John Derrick, John Fitzgerald, Stefania Gnesi, Sarfraz Khurshid, Michael Leuschel, Steve Reeves, Elvinia Riccobene (eds.)
This ebook constitutes the lawsuits of the 3rd overseas convention on summary kingdom Machines, B, VDM, and Z, which happened in Pisa, Italy, in June 2012. The 20 complete papers provided including 2 invited talks and thirteen brief papers have been conscientiously reviewed and chosen from fifty nine submissions. The ABZ convention sequence is devoted to the cross-fertilization of 5 comparable state-based and machine-based formal tools: summary country Machines (ASM), Alloy, B, VDM, and Z. They proportion a typical conceptual beginning and are time-honored in either academia and for the layout and research of and software program structures. the most target of this convention sequence is to give a contribution to the combination of those formal equipment, clarifying their commonalities and changes to higher know how to mix diverse methods for attaining a few of the initiatives in modeling, experimental validation and mathematical verification of trustworthy high quality hardware/software systems.
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Additional info for Abstract State Machines, Alloy, B, VDM, and Z: Third International Conference, ABZ 2012, Pisa, Italy, June 18-21, 2012. Proceedings
3 (P-Assign-Final). 4 Local State In the integrated style, local state is treated by a separate set of rules given in Figure 4. In each rule, the transition above the line is encapsulated in a local state σ below the line. , dom(σ), gives the names of the local variables, and for each variable x within dom(σ), σ(x) gives the value of x in σ. There are two rules each for state tests and updates, a rule to handle hidden transitions, and a rule to handle a terminated command. The choice between the two rules for state tests depends on whether the variable x being tested is in the local state σ.
A test sequence (or test) is a finite sequence of states s1 , . . , sn whose first element s1 is an initial state, and each state si (with i = 1) follows the previous one si−1 by applying the transition rules. The final state sn is the state where the test goal is achieved. Definition 2. A test suite (or test set) is a finite set of test sequences. Definition 3. A test predicate is a formula over the state and determines if a particular testing goal is reached. A coverage criterion C is a function that, given a formal specification, produces a set of test predicates.
The labels are tuples of relevant information, and can be used to seamlessly manage both state information as well as events such as exceptions or CSP event synchronisation. In a sense, the semantics we present here is an instance of MSOS, except that instead of using environments and states as labels, syntactic labels representing (mini-)relations between states are used. Because we use labels, we obtain the beneﬁt of modularity, and also have single-place conﬁgurations, which serves to keep the rules relatively concise.
Abstract State Machines, Alloy, B, VDM, and Z: Third International Conference, ABZ 2012, Pisa, Italy, June 18-21, 2012. Proceedings by Egon Börger, Antonio Cisternino, Vincenzo Gervasi (auth.), John Derrick, John Fitzgerald, Stefania Gnesi, Sarfraz Khurshid, Michael Leuschel, Steve Reeves, Elvinia Riccobene (eds.)