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arxiv: 2303.03839 · v3 · submitted 2023-03-07 · 💻 cs.LO

The Temporal Logic Synthesis Format TLSF v1.2

Swen Jacobs , Guillermo A. Perez , Philipp Schlehuber-Caissier This is my paper

Pith reviewed 2026-05-24 09:43 UTC · model grok-4.3

classification 💻 cs.LO
keywords TLSFLTLftemporal logic synthesisfinite executionsspecification formatLTL extensionsynthesis problems
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The pith

TLSF v1.2 adds operators and a semantics option for LTL on finite executions.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper extends the Temporal Logic Synthesis Format to handle LTLf specifications. TLSF originally supports standard LTL along with high-level features like sets, functions, and parameters for defining families of problems. The extension adds specific operators and a semantics option for finite traces. This allows users to specify synthesis problems over finite executions within the same framework. A sympathetic reader would care because it broadens the applicability of automated synthesis tools to scenarios where infinite traces are not appropriate.

Core claim

The paper claims that TLSF v1.2 introduces operators and a new semantics option for LTLf, enabling the specification of properties over finite executions while preserving compatibility with existing high-level constructs such as sets, functions, and parameters.

What carries the argument

The new LTLf operators together with the finite-trace semantics option, which extend TLSF without altering its core LTL fragment or high-level constructs.

If this is right

  • Synthesis problems can now be defined over finite executions using the same parameter mechanism that generates families of instances.
  • High-level constructs such as sets and functions remain usable when writing LTLf specifications.
  • Existing TLSF parsers and synthesis tools can be updated to support the finite semantics without rewriting the core LTL handling.
  • Benchmarks can include both infinite-trace and finite-trace variants under a single specification format.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • The extension could make it easier to compare synthesis difficulty between related LTL and LTLf problems that share the same high-level structure.
  • It opens the possibility of applying TLSF-style parameterization to domains such as bounded-horizon planning where only finite traces matter.
  • Tool developers might use the same format to test whether finite-trace solvers can reuse infrastructure built for the infinite case.

Load-bearing premise

The new LTLf operators and semantics integrate cleanly with the existing high-level constructs of TLSF without introducing inconsistencies or requiring changes to the core LTL fragment.

What would settle it

A counterexample would be an LTLf specification using the new operators that produces inconsistent results when combined with sets, functions, or parameters, or that forces changes to standard LTL parsing rules.

read the original abstract

We present an extension of the Temporal Logic Synthesis Format (TLSF). TLSF builds on standard LTL, but additionally supports high-level constructs, such as sets and functions, as well as parameters that allow a specification to define a whole a family of problems. Our extension introduces operators and a new semantics option for LTLf, i.e., LTL on finite executions.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

0 major / 2 minor

Summary. The paper presents TLSF v1.2, an extension of the Temporal Logic Synthesis Format. TLSF builds on standard LTL while supporting high-level constructs such as sets, functions, and parameters that define families of problems; the extension adds operators together with a new semantics option for LTLf (LTL interpreted over finite executions).

Significance. If the grammar and semantics are stated completely and integrate without inconsistency, the update extends TLSF's reach to finite-trace synthesis problems while retaining its parameterized high-level features. This is a modest but useful increment for the synthesis community that already relies on TLSF.

minor comments (2)
  1. The abstract states that the extension 'introduces operators and a new semantics option,' yet the provided description does not enumerate the concrete operators or give their formal semantics relative to the existing LTL fragment; a dedicated section listing the new productions and the finite-trace satisfaction relation would make the claim verifiable.
  2. The weakest assumption noted in the review (clean integration of LTLf operators with sets, functions, and parameters) is treated as definitional; an explicit statement that the new operators are orthogonal to the high-level constructs, or a short example showing a parameterized LTLf specification, would strengthen the manuscript.

Simulated Author's Rebuttal

0 responses · 0 unresolved

We thank the referee for their review and for recommending minor revision. The assessment correctly identifies the contribution as a modest but useful extension of TLSF to finite-trace synthesis while preserving the existing high-level parameterization features.

Circularity Check

0 steps flagged

No circularity: pure format specification

full rationale

The paper is a definitional update to TLSF that adds LTLf operators and finite-trace semantics. No derivation chain, predictions, or first-principles results are claimed; the work consists of grammar extensions and semantic clauses stated directly. No self-citations are load-bearing for any result, and no equations reduce outputs to fitted inputs or prior self-referential definitions. The central claim is simply that the stated extension has been written down and integrates with existing constructs.

Axiom & Free-Parameter Ledger

0 free parameters · 1 axioms · 0 invented entities

The paper is a format specification that extends prior work on TLSF and standard LTL; it introduces no new free parameters, axioms beyond standard temporal logic, or invented entities.

axioms (1)
  • standard math Standard LTL syntax and semantics form the base layer
    The extension is stated to build on standard LTL

pith-pipeline@v0.9.0 · 5582 in / 1080 out tokens · 24921 ms · 2026-05-24T09:43:44.451244+00:00 · methodology

discussion (0)

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Reference graph

Works this paper leans on

8 extracted references · 8 canonical work pages · 1 internal anchor

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    , " * write output.state after.block = add.period write newline

    ENTRY address author booktitle chapter doi edition editor eid howpublished institution journal key note number organization pages publisher school series title type url ee volume year label INTEGERS output.state before.all mid.sentence after.sentence after.block FUNCTION init.state.consts #0 'before.all := #1 'mid.sentence := #2 'after.sentence := #3 'aft...

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    write newline

    " write newline "" before.all 'output.state := FUNCTION n.dashify 't := "" t empty not t #1 #1 substring "-" = t #1 #2 substring "--" = not "--" * t #2 global.max substring 't := t #1 #1 substring "-" = "-" * t #2 global.max substring 't := while if t #1 #1 substring * t #2 global.max substring 't := if while FUNCTION word.in bbl.in capitalize " " * FUNCT...

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    author Giuseppe De Giacomo & author Moshe Y. Vardi ( year 2015 ): title Synthesis for LTL and LDL on Finite Traces . In editor Qiang Yang & editor Michael J. Wooldridge , editors: booktitle Proceedings of the Twenty-Fourth International Joint Conference on Artificial Intelligence, IJCAI 2015, Buenos Aires, Argentina, July 25-31, 2015 , publisher AAAI Pres...

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    A High-Level LTL Synthesis Format: TLSF v1.0

    author Swen Jacobs & author Felix Klein ( year 2016 ): title A High-Level LTL Synthesis Format: TLSF v1.0 . journal CoRR volume abs/1601.05228 . ://arxiv.org/abs/1601.05228. inproceedings tlsfv1.1

    work page internal anchor Pith review Pith/arXiv arXiv 2016

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    author Swen Jacobs , author Felix Klein & author Sebastian Schirmer ( year 2016 ): title A High-Level LTL Synthesis Format: TLSF v1.1 . In editor Ruzica Piskac & editor Rayna Dimitrova , editors: booktitle Proceedings Fifth Workshop on Synthesis, SYNT@CAV 2016, Toronto, Canada, July 17-18, 2016 , series EPTCS volume 229 , pp. pages 112--132 , doi:10.4204/...

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    author Uri Klein & author Amir Pnueli ( year 2010 ): title Revisiting Synthesis of GR(1) Specifications . In: booktitle HVC 2010. Revised Selected Papers , series LNCS volume 6504 , publisher Springer , pp. pages 161--181 , doi:10.1007/978-3-642-19583-9\_16

    work page doi:10.1007/978-3-642-19583-9 2010