Nested Words for Order-2 Pushdown Systems

@article{Aiswarya2016NestedWF,
  title={Nested Words for Order-2 Pushdown Systems},
  author={C. Aiswarya and Paul Gastin and Prakash Saivasan},
  journal={CoRR},
  year={2016},
  volume={abs/1609.06290}
}
We study linear time model checking of collapsible higher-order pushdown systems (CPDS) of order 2 (manipulating stack of stacks) against MSO and PDL (propositional dynamic logic with converse and loop) enhanced with push/pop matching relations. To capture these linear time behaviours with matchings, we propose order-2 nested words. These graphs consist of a word structure augmented with two binary matching relations, one for each order of stack, which relate a push with matching pops (or… CONTINUE READING
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