Quantitative Monitoring of Signal First-Order Logic

Fuente: arXiv
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Autori principali: Chalupa, Marek, Henzinger, Thomas A., Saraç, N. Ege, Yu, Emily
Natura: Preprint
Pubblicazione: 2026
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author Chalupa, Marek
Henzinger, Thomas A.
Saraç, N. Ege
Yu, Emily
author_facet Chalupa, Marek
Henzinger, Thomas A.
Saraç, N. Ege
Yu, Emily
contents Runtime monitoring checks, during execution, whether a partial signal produced by a hybrid system satisfies its specification. Signal First-Order Logic (SFO) offers expressive real-time specifications over such signals, but currently comes only with Boolean semantics and has no tool support. We provide the first robustness-based quantitative semantics for SFO, enabling the expression and evaluation of rich real-time properties beyond the scope of existing formalisms such as Signal Temporal Logic. To enable online monitoring, we identify a past-time fragment of SFO and give a pastification procedure that transforms bounded-response SFO formulas into equisatisfiable formulas in this fragment. We then develop an efficient runtime monitoring algorithm for this past-time fragment and evaluate its performance on a set of benchmarks, demonstrating the practicality and effectiveness of our approach. To the best of our knowledge, this is the first publicly available prototype for online quantitative monitoring of full SFO.
format Preprint
id arxiv_https___arxiv_org_abs_2603_00728
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Quantitative Monitoring of Signal First-Order Logic
Chalupa, Marek
Henzinger, Thomas A.
Saraç, N. Ege
Yu, Emily
Logic in Computer Science
Software Engineering
Systems and Control
Runtime monitoring checks, during execution, whether a partial signal produced by a hybrid system satisfies its specification. Signal First-Order Logic (SFO) offers expressive real-time specifications over such signals, but currently comes only with Boolean semantics and has no tool support. We provide the first robustness-based quantitative semantics for SFO, enabling the expression and evaluation of rich real-time properties beyond the scope of existing formalisms such as Signal Temporal Logic. To enable online monitoring, we identify a past-time fragment of SFO and give a pastification procedure that transforms bounded-response SFO formulas into equisatisfiable formulas in this fragment. We then develop an efficient runtime monitoring algorithm for this past-time fragment and evaluate its performance on a set of benchmarks, demonstrating the practicality and effectiveness of our approach. To the best of our knowledge, this is the first publicly available prototype for online quantitative monitoring of full SFO.
title Quantitative Monitoring of Signal First-Order Logic
topic Logic in Computer Science
Software Engineering
Systems and Control
url https://arxiv.org/abs/2603.00728