LogicGraph : Benchmarking Multi-Path Logical Reasoning via Neuro-Symbolic Generation and Verification

Fuente: arXiv
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Autori principali: Wu, Yanrui, Zhang, Lingling, Zhang, Xinyu, Chang, Jiayu, Li, Pengyu, Jiang, Xu, Hu, Jingtao, Liu, Jun
Natura: Preprint
Pubblicazione: 2026
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author Wu, Yanrui
Zhang, Lingling
Zhang, Xinyu
Chang, Jiayu
Li, Pengyu
Jiang, Xu
Hu, Jingtao
Liu, Jun
author_facet Wu, Yanrui
Zhang, Lingling
Zhang, Xinyu
Chang, Jiayu
Li, Pengyu
Jiang, Xu
Hu, Jingtao
Liu, Jun
contents Evaluations of large language models (LLMs) primarily emphasize convergent logical reasoning, where success is defined by producing a single correct proof. However, many real-world reasoning problems admit multiple valid derivations, requiring models to explore diverse logical paths rather than committing to one route. To address this limitation, we introduce LogicGraph, the first benchmark aimed to systematically evaluate multi-path logical reasoning, constructed via a neuro-symbolic framework that leverages backward logic generation and semantic instantiation. This pipeline yields solver-verified reasoning problems formalized by high-depth multi-path reasoning and inherent logical distractions, where each instance is associated with an exhaustive set of minimal proofs. We further propose a reference-free evaluation framework to rigorously assess model performance in both convergent and divergent regimes. Experiments on state-of-the-art language models reveal a common limitation: models tend to commit early to a single route and fail to explore alternatives, and the coverage gap grows substantially with reasoning depth. LogicGraph exposes this divergence gap and provides actionable insights to motivate future improvements. Our code and data will be released at https://github.com/kkkkarry/LogicGraph.
format Preprint
id arxiv_https___arxiv_org_abs_2602_21044
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle LogicGraph : Benchmarking Multi-Path Logical Reasoning via Neuro-Symbolic Generation and Verification
Wu, Yanrui
Zhang, Lingling
Zhang, Xinyu
Chang, Jiayu
Li, Pengyu
Jiang, Xu
Hu, Jingtao
Liu, Jun
Artificial Intelligence
Evaluations of large language models (LLMs) primarily emphasize convergent logical reasoning, where success is defined by producing a single correct proof. However, many real-world reasoning problems admit multiple valid derivations, requiring models to explore diverse logical paths rather than committing to one route. To address this limitation, we introduce LogicGraph, the first benchmark aimed to systematically evaluate multi-path logical reasoning, constructed via a neuro-symbolic framework that leverages backward logic generation and semantic instantiation. This pipeline yields solver-verified reasoning problems formalized by high-depth multi-path reasoning and inherent logical distractions, where each instance is associated with an exhaustive set of minimal proofs. We further propose a reference-free evaluation framework to rigorously assess model performance in both convergent and divergent regimes. Experiments on state-of-the-art language models reveal a common limitation: models tend to commit early to a single route and fail to explore alternatives, and the coverage gap grows substantially with reasoning depth. LogicGraph exposes this divergence gap and provides actionable insights to motivate future improvements. Our code and data will be released at https://github.com/kkkkarry/LogicGraph.
title LogicGraph : Benchmarking Multi-Path Logical Reasoning via Neuro-Symbolic Generation and Verification
topic Artificial Intelligence
url https://arxiv.org/abs/2602.21044