Theory and Practice of Formal Methods: Essays Dedicated to

This Festschrift quantity has been released in honor of Frank de Boer, at the social gathering of his sixtieth birthday.
Frank S. de Boer is a famous member of the learn neighborhood in formal equipment and theoretical desktop technological know-how. a quick examine his long e-book checklist finds a extensive niche and a flexible modus operandi with: good judgment and constraint programming; deductive evidence structures, soundness, and completeness; semantics, compositionality, and whole abstraction; procedure algebra and decidability; multithreading and actor-based concurrency; agent programming, ontologies, and modal good judgment; real-time structures, timed automata, and schedulability; company architectures, choreography, and coordination; checking out and runtime tracking; and cloud computing and service-level agreements. For some time, he additionally beloved disasters, specifically in semantics, and with a bit of luck concluded with the failure of disasters. in truth, Frank has an opportunistic method of examine. instead of seeing stumbling blocks, he unearths possibilities.

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Theory and Practice of Formal Methods: Essays Dedicated to Frank de Boer on the Occasion of His 60th Birthday

This Festschrift quantity has been released in honor of Frank de Boer, at the get together of his sixtieth birthday.
Frank S. de Boer is a well known member of the study neighborhood in formal equipment and theoretical machine technology. a short examine his long book record unearths a vast niche and a flexible modus operandi with: common sense and constraint programming; deductive facts structures, soundness, and completeness; semantics, compositionality, and entire abstraction; method algebra and decidability; multithreading and actor-based concurrency; agent programming, ontologies, and modal common sense; real-time structures, timed automata, and schedulability; firm architectures, choreography, and coordination; checking out and runtime tracking; and cloud computing and service-level agreements. For your time, he additionally cherished mess ups, specifically in semantics, and hopefully concluded with the failure of mess ups. actually, Frank has an opportunistic method of study. instead of seeing hindrances, he reveals possibilities.

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1 s for 168 mutants for the symbolic execution. 1 s for 832 mutants. The ability of the symbolic approach, to process the models without unfolding them first, clearly gives it an advantage here. Not only is it a lot faster on the partial models, it was also able to process the complete model. Additionally, it has on average even been faster than in the deterministic case. There are two main reasons for this behaviour. Firstly, three mutants have not been checked for conformance automatically, because they ran into a timeout (ten minutes), and were excluded from the experiments.

4. 1 Create an action with same guards, clock resets, state updates and label. 2 Add location = rep(l) to the guard and add location → rep(l ) to the state update. 5. Initialise the time invariant to , then for each invariant i of a location l: Conjunct the clause rep(l) = location → i to the time invariant of the TAS. Any TAS that was built according to this structure, can also be encoded as a TA, by reverting the steps above. 4 Experimental Results To give a first comparison of the two approaches we use the car alarm system that was introduced in Sect.

If the task is spawned within a loop that performs n iterations, the analysis will infer c(this, a, m) ∗ n. Example 6. For the code in Fig. 4, cost analysis infers that the number of iterations of the loop in work (at L21) is bounded by the expression nat(n). Function nat(x) = max(x, 0) is used to avoid negative evaluations of the cost expressions. Then, by applying the number of tasks cost model we obtain the following expression that bounds the number of tasks spawned at L23: c(m, s, process) ∗ nat(n).

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