Formalization of Semi-Algebraic Sets in PVS
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differential dynamic logic↗
Engineering topics
Lauren M White
Publications and source records attributed to Lauren M White.
A Formal Verification Framework for Runtime Assurance
The simplex architecture is an instance of Runtime Assurance (RTA) where a trusted component takes control of a safety-critical system when an untrusted component violates a safety property. This paper presents a formalization of the simplex RTA framework in the language of hybrid programs. A feature of this formal verification framework is that, for a given system, a specific instantiation can be created and its safety properties are guaranteed by construction. Instantiations may be kept at varying levels of generality, allowing for black box components, such as ML/AI-based controllers, to be modeled. The framework is written in the Prototype Verification System (PVS) using Plaidypvs, an embedding of differential dynamic logic in PVS. As a proof of concept, the framework is illustrated on an automatic vehicle braking system.
Runtime assurance↗
Application of UAS Technologies to Create Resilient Rural Communities
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UAS↗