Understanding and improving cyber-physical system models and development tools

Abstract

Recent years have seen an increasing interest in understanding and analyzing cyber-physical system (CPS) models and their development tools. Existing work in this area is limited by the lack of an open corpus of CPS models, which we aim to address by building the by-far largest curated corpus of CPS artifacts. Next, to address the safety-critical aspect of CPS development tools, we discuss the design and evaluation of the very first differential testing framework for arbitrary CPS tool chain. We identify challenges unique to commercial CPS tool chain testing and present a tool implementation which has already found 9 new, confirmed bugs in Simulink, the most widely used CPS development tool.