Verification of a Virtual Filesystem Switch

@inproceedings{Ernst2013VerificationOA,
  title={Verification of a Virtual Filesystem Switch},
  author={Gidon Ernst and Gerhard Schellhorn and Dominik Haneberg and J{\"o}rg Pf{\"a}hler and Wolfgang Reif},
  booktitle={VSTTE},
  year={2013}
}
This work presents part of our verification effort to construct a correct file system for Flash memory. As a blueprint we use UBIFS, which is part of Linux. As all file systems in Linux, UBIFS implements the Virtual Filesystem Switch (VFS) interface. VFS in turn implements top-level POSIX operations. This paper bridges the gap between an abstract specification of POSIX and a realistic model of VFS by ASM refinement. The models and proofs are mechanized in the interactive theorem prover KIV… CONTINUE READING
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