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ICSE 2023
Sun 14 - Sat 20 May 2023 Melbourne, Australia
Wed 17 May 2023 12:00 - 12:07 at Meeting Room 104 - Formal verification Chair(s): Bonita Sharif

Consensus protocol plays an important role in ensuring the reliability of distributed systems. How to formally model and verify it is a hot research issue. Due to the limitation of verification performance, it can usually verify consensus algorithms with a small number of processes. The Heard-Of (HO) model is well-performing in formal verification. However, existing works only support HO modeling for Crash Fault Tolerant (CFT) protocols and rely on SMT-based verification. It cannot model Byzantine Fault Tolerant (BFT) protocols, nor can it support SAT solving. This paper designs and implements an HO-based formal modeling and verification environment for consensus protocols. We extend the semantics of the HO model to model the threshold-guarded distributed BFT protocol and formally defined HOML (HO modeling language). We get through the formal verification process from HOML to SAT/SMT solving, which improves the verification performance. HOME can facilitate the design of consensus protocols and help find safety problems. Repo: https://github.com/tempAcc000/HOME Video: https://www.youtube.com/watch?v=DFuVWP8xHNU

Wed 17 May

Displayed time zone: Hobart change

11:00 - 12:30
11:00
15m
Talk
How Do We Read Formal Claims? Eye-Tracking and the Cognition of Proofs about Algorithms
Technical Track
Hammad Ahmad University of Michigan, Zachary Karas University of Michigan, Kimberly Diaz University of Michigan, Amir Kamil University of Michigan, Jean-Baptiste Jeannin University of Michigan at Ann Arbor, Westley Weimer University of Michigan
11:15
15m
Talk
Which of My Assumptions are Unnecessary for Realizability and Why Should I Care?
Technical Track
Rafi Shalom Tel Aviv University, Israel, Shahar Maoz Tel Aviv University
Pre-print
11:30
15m
Talk
Understanding Inconsistency in Azure Cosmos DB with TLA+
SEIP - Software Engineering in Practice
Alistair Finn Hackett University of British Columbia, Joshua Rowe Microsoft, Markus Alexander Kuppe Microsoft Research
11:45
15m
Talk
Rely/Guarantee Reasoning for Multicopy Atomic Weak Memory Models
Showcase
Nicholas Coughlin Defence Science and Technology Group, Australia, Kirsten Winter Defence Science and Technology Group, Australia, Graeme Smith The University of Queensland
12:00
7m
Talk
HOME: Heard-Of based Formal Modeling and Verification Environment for Consensus Protocols
DEMO - Demonstrations
Shumao Zhai Beihang University, Xiaozhou Li University of Oulu, Ning Ge School of Software, Beihang University
12:07
7m
Talk
CoVeriTeam Service: Verification as a Service
DEMO - Demonstrations
Dirk Beyer LMU Munich, Sudeep Kanav LMU Munich, Henrik Wachowitz LMU Munich
12:15
7m
Talk
Proofster: Automated Formal Verification
DEMO - Demonstrations
Arpan Agrawal University of Illinois Urbana-Champaign, Emily First University of Massachusetts Amherst, Zhanna Kaufman University of Massachusetts, Tom Reichel University of Illinois Urbana-Champaign, Shizhuo Zhang University of Illinois Urbana-Champaign, Timothy Zhou University of Illinois Urbana-Champaign, Alex Sanchez-Stern University of Massachusetts at Amherst, Talia Ringer University of Illinois at Urbana-Champaign, Yuriy Brun University of Massachusetts
Media Attached
12:22
7m
Talk
Anti-Patterns (Smells) in Temporal Specifications
NIER - New Ideas and Emerging Results
Dor Ma'ayan Tel Aviv University, Shahar Maoz Tel Aviv University, Jan Oliver Ringert Bauhaus-University Weimar
Pre-print