Notes:
This is an extended version, including proofs, of [FKN+11].
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Abstract.
We present a verification framework for analysing multiple quantitative objectives
of systems that exhibit both nondeterministic and stochastic behaviour.
These systems are modelled as probabilistic automata, enriched with cost or reward structures that capture,
for example, energy usage or performance metrics.
Quantitative properties of these models are expressed in a specification language
that incorporates probabilistic safety and liveness properties, expected total cost or reward,
and supports multiple objectives of these types.
We propose and implement an efficient verification framework for such properties
and then present two distinct applications of it:
firstly, controller synthesis subject to multiple quantitative objectives;
and, secondly, quantitative compositional verification.
The practical applicability of both approaches is illustrated
with experimental results from several large case studies.
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