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Creators/Authors contains: "Tiago Cogumbreiro"

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  1. ; (, The Southeast Regional Programming Languages Seminar (SERPL))
    Accepted Manuscript Full Text Available
  2. ; (, The Southeast Regional Programming Languages Seminar (SERPL))
    Accepted Manuscript Full Text Available
  3. ; ; (, International Conference on Coordination Languages and Models)
    This paper introduces Shelley, a novel model checking framework used to verify the order of function calls, developed in the context of Cyber-Physical Systems (CPS). Shelley infers the model directly from MicroPython code, so as to simplify the process of checking requirements expressed in a temporal logic. Applications for CPS need to reason about the end of execution to verify the reclamation/release of physical resources, so our temporal logic is stated on finite traces. Lastly, Shelley infers the behavior from code using an inter-procedural and compositional analysis, thus supporting the usual object-oriented programming techniques employed in MicroPython code. To evaluate our work, we present an experience report on an industrial application and evaluate the bounds of the validity checks (up to subsystems under 10 s on a desktop computer). 
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    Accepted Manuscript Full Text Available
  4. ; (, International Symposium on Trends in Functional Programming)
    We present a technique to stress-test the correctness of static analysis tools for CUDA programs, involving code generation and fixed point analysis. Our method revolves around a family of behavioral types called memory access protocols (MAPs), an abstraction used by Faial to determine whether CUDA programs are data-race free. In this paper, we introduce a code generation technique to represent MAPs in a form comprehensible to static analyzers (CUDA code). We use fixed point analysis to detect consistency errors in how programs are represented. We perform white-box testing with Faial, a tool we are already familiar with, to simultaneously fix bugs and facilitate further testing. 
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    Accepted Manuscript Full Text Available