From Innermost to Full Probabilistic Term Rewriting: Almost-Sure Termination, Complexity, and Modularity

Fuente: arXiv
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Main Authors: Kassing, Jan-Christoph, Giesl, Jürgen
Format: Preprint
Published: 2024
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author Kassing, Jan-Christoph
Giesl, Jürgen
author_facet Kassing, Jan-Christoph
Giesl, Jürgen
contents There are many evaluation strategies for term rewrite systems, but automatically proving termination or analyzing complexity is usually easiest for innermost rewriting. Several syntactic criteria exist when innermost termination implies (full) termination or when runtime complexity and innermost runtime complexity coincide. We adapt these criteria to the probabilistic setting, e.g., we show when it suffices to analyze almost-sure termination w.r.t. innermost rewriting in order to prove (full) almost-sure termination of probabilistic term rewrite systems. These criteria can be applied for both termination and complexity analysis in the probabilistic setting. We implemented and evaluated our new contributions in the tool AProVE. Moreover, we also use our new results to investigate the modularity of probabilistic termination properties.
format Preprint
id arxiv_https___arxiv_org_abs_2409_17714
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle From Innermost to Full Probabilistic Term Rewriting: Almost-Sure Termination, Complexity, and Modularity
Kassing, Jan-Christoph
Giesl, Jürgen
Logic in Computer Science
There are many evaluation strategies for term rewrite systems, but automatically proving termination or analyzing complexity is usually easiest for innermost rewriting. Several syntactic criteria exist when innermost termination implies (full) termination or when runtime complexity and innermost runtime complexity coincide. We adapt these criteria to the probabilistic setting, e.g., we show when it suffices to analyze almost-sure termination w.r.t. innermost rewriting in order to prove (full) almost-sure termination of probabilistic term rewrite systems. These criteria can be applied for both termination and complexity analysis in the probabilistic setting. We implemented and evaluated our new contributions in the tool AProVE. Moreover, we also use our new results to investigate the modularity of probabilistic termination properties.
title From Innermost to Full Probabilistic Term Rewriting: Almost-Sure Termination, Complexity, and Modularity
topic Logic in Computer Science
url https://arxiv.org/abs/2409.17714