We present T-UPPAAL — a new tool for online black-box testing of real-time embedded systems from non-deterministic timed automata specifi cations. We describe a sound and complete randomized online testing algorithm and how to implement it using symbolic state representation and manipulation techniques. We propose the notion of relativized timed input/output conformance as the formal implementa...

We propose a compositional framework for analyzing the schedulability of hierarchical scheduling systems. The framework is realized using Parameterized Stopwatch Automata to describe tasks, whereas the schedulability analysis is performed using UPPAAL. The concrete behavior of each periodic preemptive task is given as a list of timed actions to which resources are assigned by SIRAP protocol. Ou...

ArchMDE is a formal software architecturebased approach for the development and the verification of software architecture of real time systems. It provides a way to obtain the structure and the behavior of software architecture with hard real-time constraints and in accordance with blackboard style. This paper presents an overview of this approach and focuses on the behavior transformation rule...

Over the last years the number of cyber-physical systems that provide critical functionality has increased continuously. Ensuring the correct behavior of those systems is essential to prevent potentially catastrophic malfunctions. This dissertation is about online model checking, a dynamic variant of model checking that can provide safety guarantees even if accurate long-term modeling of a syst...

Mcta is a directed model checking tool for concurrent systems of timed automata. This paper reviews Mcta and its new developments from an implementation point of view. The new developments include both heuristics and search techniques that define the state of the art in directed model checking. In particular, Mcta features the powerful class of pattern database heuristics for efficiently findin...

We present T-UPPAAL — a new tool for online black-box testing of real-time embedded systems from non-deterministic timed automata specifications. We describe a sound and complete randomized online testing algorithm and how to implement it using symbolic state representation and manipulation techniques. We propose the notion of relativized timed input/output conformance as the formal implementat...

Uppaal is a tool suite for automatic veriication of safety and bounded liveness properties of real-time systems modeled as networks of timed automata. It includes: a graphical interface that supports graphi-cal and textual representations of networks of timed automata, and automatic transformation from graphical representations to textual format, a compiler that transforms a certain class of li...

Timed Automata with Deadlines (TAD) are a form of timed automata that admit a more naturalrepresentation of urgent actions, with the additional advantage of avoiding the most common form oftimelocks. We offer a compositional translation of a practically useful subset of TAD to timed safetyautomata (the well-known variant of timed automata where time progress conditions are expre...

Uppaal is a tool suite for automatic veriication of safety and bounded liveness properties of real-time systems modeled as networks of timed automata. It includes: a graphical interface that supports graphi-cal and textual representations of networks of timed automata, and automatic transformation from graphical representations to textual format, a compiler that transforms a certain class of li...