RQ4

Experiment Setup

To address RQ4, we investigate the characteristic failure modes of LLMs in complex temporal reasoning tasks. We conduct a manual inspection of a representative subset of failure cases sampled from the experimental results. Based on this analysis, we summarize the observed errors into two primary categories: Logical Failures, where models generate valid formats but yield incorrect reasoning or answers, and Structural Failures, where models fail to produce parsable outputs due to format violations or context limitations.