Bug#1077836: latexdiff: processing 13-page document takes indefinite time (11 hours so far)

[Manny]

> Dear reporter.  Without access to the report-old.tex and report_new.tex
> files this bug report is impossible to address.

I just sent you the documents directly, which will reproduce the
issue. At the moment I would rather not publish them here.

What I will say for anyone else who wants to work on this is that the
document was split into several pieces and latexdiff executed on each
piece, in attempt to isolate the problem. Every piece ran quickly and
correctly terminated. So the defect is perhaps related to a transition
from one piece to another.