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In open systems verification, to formally check for reliability, one needs an appropriate formalism to model the interaction between open entities and express that the system is correct no matter how the environment behaves. An important contribution in this context is given by modal logics for strategic ability, in the setting of multi-agent games, such as… (More)

In this paper we investigate the model-checking problem of pushdown multi-agent systems for ATL specifications. To this aim, we introduce pushdown game structures over which ATL formulas are interpreted. We show an algorithm that solves the addressed model-checking problem in 3ExpTime. We also provide a 2ExpSpace lower bound by showing a reduction from the… (More)

The fully enriched μ-calculus is the extension of the propositional μ-calculus with inverse programs, graded modalities, and nominals. While satis-fiability in several expressive fragments of the fully enriched μ-calculus is known to be decidable and EXPTIME-complete, it has recently been proved that the full calculus is undecidable. In this paper, we study… (More)

In open systems verification, to formally check for reliability, one needs an appropriate formalism to model the interaction between agents and express the correctness of the system no matter how the environment behaves. An important contribution in this context is given by modal logics for strategic ability, in the setting of multiagent games, such as… (More)

In recent years, huge effort has been devoted to the definition of modal logics for strategic reasoning in the setting of multi-agent games. In this area, a recent contribution is the introduction of Strategy Logic (SL, for short) by Mogavero, Murano, and Vardi. This logic allows to reason explicitly about strategies as first order objects. It strictly… (More)

Weighted timed automata extend timed automata with costs on both locations and transitions. In this framework we study the optimal reach-ability and the optimal control synthesis problems for the automata with acyclic control graphs. This class of automata is relevant for some practical problems such as some static scheduling problems or air-traffic control… (More)

The rapid development of complex and safety-critical systems requires the use of reliable verification methods and tools for system design (synthesis). Many systems of interest are reactive, in the sense that their behavior depends on the interaction with the environment. A natural framework to model them is a two-player game: the system versus the… (More)

Model checking is a useful method to verify automatically the correctness of a system with respect to a desired behavior, by checking whether a mathematical model of the system satisfies a formal specification of this behavior. Many systems of interest are open, in the sense that their behavior depends on the interaction with their environment. The model… (More)

Strategy Logic (SL, for short) has been recently introduced by Mo-gavero, Murano, and Vardi as a formalism for reasoning explicitly about strategies, as first-order objects, in multi-agent concurrent games. This logic turns out to be very powerful, strictly subsuming all major previously studied modal logics for strategic reasoning, including ATL, ATL * ,… (More)

Temporal logics are a well investigated formalism for the specification , verification, and synthesis of reactive systems. Within this family, alternating temporal logic, ATL*, has been introduced as a useful generalization of classical linear-and branching-time temporal logics by allowing temporal operators to be indexed by coalitions of agents.… (More)