---
res:
bibo_abstract:
- We present a logic that extends CTL (Computation Tree Logic) with operators that
express synchronization properties. A property is synchronized in a system if
it holds in all paths of a certain length. The new logic is obtained by using
the same path quantifiers and temporal operators as in CTL, but allowing a different
order of the quantifiers. This small syntactic variation induces a logic that
can express non-regular properties for which known extensions of MSO with equality
of path length are undecidable. We show that our variant of CTL is decidable and
that the model-checking problem is in Delta_3^P = P^{NP^NP}, and is DP-hard. We
analogously consider quantifier exchange in extensions of CTL, and we present
operators defined using basic operators of CTL* that express the occurrence of
infinitely many synchronization points. We show that the model-checking problem
remains in Delta_3^P. The distinguishing power of CTL and of our new logic coincide
if the Next operator is allowed in the logics, thus the classical bisimulation
quotient can be used for state-space reduction before model checking. @eng
bibo_authorlist:
- foaf_Person:
foaf_givenName: Krishnendu
foaf_name: Chatterjee, Krishnendu
foaf_surname: Chatterjee
foaf_workInfoHomepage: http://www.librecat.org/personId=2E5DCA20-F248-11E8-B48F-1D18A9856A87
orcid: 0000-0002-4561-241X
- foaf_Person:
foaf_givenName: Laurent
foaf_name: Doyen, Laurent
foaf_surname: Doyen
bibo_doi: 10.4230/LIPIcs.ICALP.2016.98
bibo_volume: 55
dct_date: 2016^xs_gYear
dct_language: eng
dct_publisher: Schloss Dagstuhl- Leibniz-Zentrum fur Informatik@
dct_title: Computation tree logic for synchronization properties@
...