Hoare logics are proof systems that allow one to formally establish properties of computer
programs. Traditional Hoare logics prove properties of individual program executions (such …

Hyperproperties relate multiple executions of a program and are useful to express common
correctness properties (such as determinism) and security properties (such as non …

This paper describes GenRGSep, an Isabelle/HOL library for the development of RGSep
logics using a general algebraic state model. In particular, we develop an algebraic state …

Commutativity of program code (ie the equivalence of two code fragments composed in
alternate orders) is of ongoing interest in many settings such as program verification …

Abstract Information flow analysis (IFA) is a powerful technique for verifying confidentiality
and integrity. This is highly desirable for embedded systems, where security violations can …

With great computational power comes great responsibility. The history of computing
unveiled the cost of errors in safety-critical systems. In the 1980s, the Therac-25 radiation …

Software has become ubiquitous, ranging from apps for toasters to important infrastructure
such as transportation, finance, and healthcare. Ensuring that software actually behaves as …