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    Advanced Symbolic Analysis Tools for Fault-Tolerant Integrated Distributed Systems (2018)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: The project aims to develop advanced model-checking algorithms and tools to automate the verification of fault-tolerant distributed systems for avionics. We present a new method called Property-Directed K-Induction (PD-KIND) for synthesizing K-inductive invariants of state-transition systems. PD-KIND builds upon Satifiability Modulo Theories (SMT) to generalize Bradley's IC3 method and its variants. This method is implemented in a new tool called SALLY. Case studies show that PD-KIND can automatically verify fault-tolerant algorithms under a variety of fault models and that SALLY is competitive with other SMT-based model checkers.
    Keywords: Computer Systems
    Type: NASA/CR-2018-219834 , NF1676L-27681
    Format: application/pdf
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