We explore the challenges and opportunities of shifting industrial control software from dedicated hardware to bare-metal servers or cloud computing platforms using off the shelf technologies. In particular, we demonstrate that executing time-critical applications on cloud platforms is viable based on a series of dedicated latency tests targeting relevant real-time configurations.

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Abstract-Given a global specification contract and a system described by a composition of contracts, system verification reduces to checking that the composite contract refines the specification contract, i.e. that any implementation of the composite contract implements the specification contract and is able to operate in any environment admitted by it. Contracts are captured using high-level declarative languages, for example, linear temporal logic (LTL). In this case, refinement checking reduces to an LTL satisfiability checking problem, which can be very expensive to solve for large composite contracts. This paper proposes a scalable refinement checking approach that relies on a library of contracts and local refinement assertions. We propose an algorithm that, given such a library, breaks down the refinement checking problem into multiple successive refinement checks, each of smaller scale. We illustrate the benefits of the approach on an industrial case study of an aircraft electric power system, with up to two orders of magnitude improvement in terms of execution time.

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Synthesis from component libraries is the problem of building a network of components from a given library, such that the network realizes a given specification. This problem is undecidable in general. It becomes decidable if we impose a bound on the number of chosen components. However, the bounded problem remains computationally hard and brute-force approaches do not scale. In this paper, we study scalable methods for solving the problem of bounded synthesis from libraries, proposing a solution based on the Counterexample-Guided Inductive Synthesis paradigm. Although our synthesis algorithm does not assume a specific formalism a priori, we present a parallel implementation which instantiates components defined as Linear Temporal Logic-based Assume/Guarantee Contracts. We show the potential of our approach and evaluate our implementation by applying it to two industrial-relevant case studies.