Slides - Umang Mathur

Ongoing Projects
Umang Mathur
Department of Computer Science and Engineering
IIT Bombay, Mumbai, India
March 25, 2014
Umang Mathur – 1 of 1
Non-Zeno Strategies for Timed Games
– With Prof. Igor Walukiewicz and Prof. Frédéric Herbreteau (LabRI, University
of Bordeaux - I)
Umang Mathur – 2 of 1
Non-Zeno Strategies for Timed Games
– With Prof. Igor Walukiewicz and Prof. Frédéric Herbreteau (LabRI, University
of Bordeaux - I)
– Goal: Design an algorithm to solve the problem of synthesizing safe non-Zeno
strategies for Timed Games.
Umang Mathur – 2 of 1
Non-Zeno Strategies for Timed Games
– With Prof. Igor Walukiewicz and Prof. Frédéric Herbreteau (LabRI, University
of Bordeaux - I)
– Goal: Design an algorithm to solve the problem of synthesizing safe non-Zeno
strategies for Timed Games.
Definition (Safe non-Zeno strategy synthesis problem)
Given a timed game and a safety objective, the Safe non-Zeno strategy synthesis
problem is to decide if there exists a winning strategy for the given game and
objective (safe non-Zeno), and to compute a maximal strategy, or the maximal
(continuously) permissive strategy if it exists
Umang Mathur – 2 of 1
Non-Zeno Strategies for Timed Games
– With Prof. Igor Walukiewicz and Prof. Frédéric Herbreteau (LabRI, University
of Bordeaux - I)
– Goal: Design an algorithm to solve the problem of synthesizing safe non-Zeno
strategies for Timed Games.
Definition (Safe non-Zeno strategy synthesis problem)
Given a timed game and a safety objective, the Safe non-Zeno strategy synthesis
problem is to decide if there exists a winning strategy for the given game and
objective (safe non-Zeno), and to compute a maximal strategy, or the maximal
(continuously) permissive strategy if it exists
– Formulated sound and complete conditions for the region-based abstraction will
meet this criterion
Umang Mathur – 2 of 1
Non-Zeno Strategies for Timed Games
– With Prof. Igor Walukiewicz and Prof. Frédéric Herbreteau (LabRI, University
of Bordeaux - I)
– Goal: Design an algorithm to solve the problem of synthesizing safe non-Zeno
strategies for Timed Games.
Definition (Safe non-Zeno strategy synthesis problem)
Given a timed game and a safety objective, the Safe non-Zeno strategy synthesis
problem is to decide if there exists a winning strategy for the given game and
objective (safe non-Zeno), and to compute a maximal strategy, or the maximal
(continuously) permissive strategy if it exists
– Formulated sound and complete conditions for the region-based abstraction will
meet this criterion
– Proposed a technique to concretize the abstract strategy to a non-Zeno strategy
on the actual timed game
Umang Mathur – 2 of 1
Non-Zeno Strategies for Timed Games
– With Prof. Igor Walukiewicz and Prof. Frédéric Herbreteau (LabRI, University
of Bordeaux - I)
– Goal: Design an algorithm to solve the problem of synthesizing safe non-Zeno
strategies for Timed Games.
Definition (Safe non-Zeno strategy synthesis problem)
Given a timed game and a safety objective, the Safe non-Zeno strategy synthesis
problem is to decide if there exists a winning strategy for the given game and
objective (safe non-Zeno), and to compute a maximal strategy, or the maximal
(continuously) permissive strategy if it exists
– Formulated sound and complete conditions for the region-based abstraction will
meet this criterion
– Proposed a technique to concretize the abstract strategy to a non-Zeno strategy
on the actual timed game
We plan to:
Umang Mathur – 2 of 1
Non-Zeno Strategies for Timed Games
– With Prof. Igor Walukiewicz and Prof. Frédéric Herbreteau (LabRI, University
of Bordeaux - I)
– Goal: Design an algorithm to solve the problem of synthesizing safe non-Zeno
strategies for Timed Games.
Definition (Safe non-Zeno strategy synthesis problem)
Given a timed game and a safety objective, the Safe non-Zeno strategy synthesis
problem is to decide if there exists a winning strategy for the given game and
objective (safe non-Zeno), and to compute a maximal strategy, or the maximal
(continuously) permissive strategy if it exists
– Formulated sound and complete conditions for the region-based abstraction will
meet this criterion
– Proposed a technique to concretize the abstract strategy to a non-Zeno strategy
on the actual timed game
We plan to:
– Extend our techniques to Zone-based abstractions : Splitting of Zones
Umang Mathur – 2 of 1
Non-Zeno Strategies for Timed Games
– With Prof. Igor Walukiewicz and Prof. Frédéric Herbreteau (LabRI, University
of Bordeaux - I)
– Goal: Design an algorithm to solve the problem of synthesizing safe non-Zeno
strategies for Timed Games.
Definition (Safe non-Zeno strategy synthesis problem)
Given a timed game and a safety objective, the Safe non-Zeno strategy synthesis
problem is to decide if there exists a winning strategy for the given game and
objective (safe non-Zeno), and to compute a maximal strategy, or the maximal
(continuously) permissive strategy if it exists
– Formulated sound and complete conditions for the region-based abstraction will
meet this criterion
– Proposed a technique to concretize the abstract strategy to a non-Zeno strategy
on the actual timed game
We plan to:
– Extend our techniques to Zone-based abstractions : Splitting of Zones
– Build a minimal tool to implement the results
Umang Mathur – 2 of 1