Chain of Execution Supervision Promotes General Reasoning in Large Language Models

Fuente: arXiv
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Autores principales: Chen, Nuo, Li, Zehua, Bao, Keqin, Lin, Junyang, Liu, Dayiheng
Formato: Preprint
Publicado: 2025
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author Chen, Nuo
Li, Zehua
Bao, Keqin
Lin, Junyang
Liu, Dayiheng
author_facet Chen, Nuo
Li, Zehua
Bao, Keqin
Lin, Junyang
Liu, Dayiheng
contents Building robust and general reasoning ability is a central goal in the development of large language models (LLMs). Recent efforts increasingly turn to code as a rich training source, given its inherent logical structure and diverse reasoning paradigms such as divide-and-conquer, topological ordering, and enumeration. However, reasoning in code is often expressed implicitly and entangled with syntactic or implementation noise, making direct training on raw code suboptimal.To address this, we introduce TracePile, a large-scale corpus of 2.6 million samples that transforms code execution into explicit, step-by-step chain-of-thought-style rationales, which we call Chain of Execution (CoE). The corpus spans domains including mathematics, classical algorithms and algorithmic competition, and is enriched with variable-tracing questions and code rewritings to enhance logical granularity and code diversity. We evaluate TracePile using three training setups: continue-pretraining, instruction tuning after pretraining, and two-stage finetuning. Experiments across four base models (LLaMA 3, LLaMA 3.1, Qwen-2.5, and Qwen-2.5 Coder) and 20 benchmarks covering math, code, logic, and algorithms demonstrate consistent improvements. Notably, TracePile boosts LLaMA3.1-8B by 7.1\% on average across nine math datasets and delivers clear gains on LiveCodeBench, CRUX, and MMLU under two-stage fine-tuning.
format Preprint
id arxiv_https___arxiv_org_abs_2510_23629
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Chain of Execution Supervision Promotes General Reasoning in Large Language Models
Chen, Nuo
Li, Zehua
Bao, Keqin
Lin, Junyang
Liu, Dayiheng
Machine Learning
Artificial Intelligence
Programming Languages
Building robust and general reasoning ability is a central goal in the development of large language models (LLMs). Recent efforts increasingly turn to code as a rich training source, given its inherent logical structure and diverse reasoning paradigms such as divide-and-conquer, topological ordering, and enumeration. However, reasoning in code is often expressed implicitly and entangled with syntactic or implementation noise, making direct training on raw code suboptimal.To address this, we introduce TracePile, a large-scale corpus of 2.6 million samples that transforms code execution into explicit, step-by-step chain-of-thought-style rationales, which we call Chain of Execution (CoE). The corpus spans domains including mathematics, classical algorithms and algorithmic competition, and is enriched with variable-tracing questions and code rewritings to enhance logical granularity and code diversity. We evaluate TracePile using three training setups: continue-pretraining, instruction tuning after pretraining, and two-stage finetuning. Experiments across four base models (LLaMA 3, LLaMA 3.1, Qwen-2.5, and Qwen-2.5 Coder) and 20 benchmarks covering math, code, logic, and algorithms demonstrate consistent improvements. Notably, TracePile boosts LLaMA3.1-8B by 7.1\% on average across nine math datasets and delivers clear gains on LiveCodeBench, CRUX, and MMLU under two-stage fine-tuning.
title Chain of Execution Supervision Promotes General Reasoning in Large Language Models
topic Machine Learning
Artificial Intelligence
Programming Languages
url https://arxiv.org/abs/2510.23629