# Parameterized linear temporal logics meet costs: still not costlier than LTL

Parameterized linear temporal logics meet costs: still not costlier than LTL We continue the investigation of parameterized extensions of linear temporal logic (LTL) that retain the attractive algorithmic properties of LTL: a polynomial space model checking algorithm and a doubly-exponential time algorithm for solving games. Alur et al. and Kupferman et al. showed that this is the case for parametric LTL (PLTL) and PROMPT-LTL respectively, which have temporal operators equipped with variables that bound their scope in time. Later, this was also shown to be true for parametric LDL (PLDL), which extends PLTL to be able to express all $$\omega$$ ω -regular properties. Here, we generalize PLTL to systems with costs, i.e., we do not bound the scope of operators in time, but bound the scope in terms of the cost accumulated during time. Again, we show that model checking and solving games for specifications in PLTL with costs is not harder than the corresponding problems for LTL. Finally, we discuss PLDL with costs and extensions to multiple cost functions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Informatica Springer Journals

# Parameterized linear temporal logics meet costs: still not costlier than LTL

Acta Informatica, Volume 55 (2) – Oct 13, 2016
24 pages

/lp/springer_journal/parameterized-linear-temporal-logics-meet-costs-still-not-costlier-u0ZnCNd04Z
Publisher
Springer Journals
Subject
Computer Science; Logics and Meanings of Programs; Computer Systems Organization and Communication Networks; Software Engineering/Programming and Operating Systems; Data Structures, Cryptology and Information Theory; Theory of Computation; Information Systems and Communication Service
ISSN
0001-5903
eISSN
1432-0525
D.O.I.
10.1007/s00236-016-0279-9
Publisher site
See Article on Publisher Site

### Abstract

We continue the investigation of parameterized extensions of linear temporal logic (LTL) that retain the attractive algorithmic properties of LTL: a polynomial space model checking algorithm and a doubly-exponential time algorithm for solving games. Alur et al. and Kupferman et al. showed that this is the case for parametric LTL (PLTL) and PROMPT-LTL respectively, which have temporal operators equipped with variables that bound their scope in time. Later, this was also shown to be true for parametric LDL (PLDL), which extends PLTL to be able to express all $$\omega$$ ω -regular properties. Here, we generalize PLTL to systems with costs, i.e., we do not bound the scope of operators in time, but bound the scope in terms of the cost accumulated during time. Again, we show that model checking and solving games for specifications in PLTL with costs is not harder than the corresponding problems for LTL. Finally, we discuss PLDL with costs and extensions to multiple cost functions.

### Journal

Acta InformaticaSpringer Journals

Published: Oct 13, 2016

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