Decentralized finance (DeFi) has become one of the most successful applications of
blockchain and smart contracts. The DeFi ecosystem enables a wide range of crypto …

Abstract Model learning has gained increasing interest in recent years. It derives
behavioural models from test data of black-box systems. The main advantage offered by …

State Explosion is a fundamental challenge for model checking methods. This term refers to
the potentially exponential growth of the state space of a program as a function of the …

We present algorithms for model checking and controller synthesis of timed automata,
seeing a timed automaton model as a parallel composition of a large finite-state machine …

In this paper, we propose a novel algorithm to learn a Büchi automaton from a teacher who
knows an ω-regular language. The learned Büchi automaton can be a nondeterministic …

Timed automata (TAs) are a widely used formalism to specify systems having temporal
requirements. However, exactly specifying the system may be difficult, as the user may not …

We address the verification of timed concurrent systems with unknown or uncertain
constants considered as parameters. First, we introduce parametric event-recording …

Model checking suffers from the state space explosion problem. Compositional verification
techniques such as assume-guarantee reasoning (AGR) have been proposed to alleviate …

Compositional verification, such as the technique of assume-guarantee reasoning (AGR), is
to verify a property of a system from the properties of its components. It is essential to …

Software verification may yield spurious failures when environment assumptions are not
accounted for. Environment assumptions are the expectations that a system or a component …