ACL2 Seminar, April 6, 2018 Speaker: Mihir Mehta Title: Verifying the FAT32 filesystem with ACL2 Abstract: In this talk, we discuss an effort to verify filesystems with ACL2, based on executable specifications available in kernel source code and userland filesystem utilities. We detail one application of this approach to the FAT32 filesystem through the construction of an increasingly complex series of formally verified models. We explain the degree to which these models are binary compatible with these executable specifications and outline future work towards the goal of full binary compatibility.