There is a bit of discussion in related questions about automated LaTeX (re)compilation (e.g., here and here) and elsewhere on the web on rerunning the
latex command in order to resolve all references.
Now how can I precisely determine from visual inspection (or a search query) in the
log-file whether all references are resolved? That is, what is the precise set of messages that indicates that there are unresolved references? A regular-expression-like answer will be good.
(I know that I can mine the solutions to the above-cited SE.TeX post for an educated guess of an answer, but it seems like having an expert answer this and having that answer in one place in this forum will be useful for many people.)