Formal Methods: Foundations and Applications

This book constitutes the refereed proceedings of the 23rd Brazilian Symposium on Formal Methods, SBMF 2020, which was supposed to take place in Ouro Preto, Brazil, in November 2020. Instead the symposium took place virtually due to the COVID-19 pandemic. The 10 regular papers presented together with 3 invited talks in this book were carefully reviewed and selected from 17 submissions. The papers are organized in topical sections such as: experience reports; models, languages and semantics; and software product lines.Chapter 'Safety Assurance of a High Voltage Controller for an Industrial Robotic System' is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.

Inhalt
Invited Talks.- Formal Verification of Neural Networks?.- Navigating the Universe of Z3 Theory Solvers.- Revisiting Refactoring Mechanics from Tool Developers' Perspective.- Experience Reports.- Safety Assurance of a High Voltage Controller for an Industrial Robotic System.- Statistical Model Checking in Drug Repurposing for Alzheimer's Disease.- Models, Languages and Semantics.- Calculational Proofs in Relational Graphical Linear Algebra.- Modeling Big Data Processing Programs.- Optimization of Timed Scenarios.- Reversal Fuzzy Switch Graphs.- Separation Logic-Based Verification atop a Binary-Compatible Filesystem Model.- Software Product Lines.- Merging Cloned Alloy Models with Colorful Refactorings.- Porting the Software Product Line Refinement Theory to the Coq Proof Assistant.- Safe Evolution of Product Lines using Configuration Knowledge Laws.