The DOT input which I sent last time was the part of larger one. Both Dot.exe 2.12 and 2.13.20070608.0440 show "abnormal program termination" when the original version is input.
I attached two input for DOT (gzip compressed tar). reduced.dot is reduced one, and it makes Dot.exe 2.13.20070608.0440 crashed. However, it accepted normally by 2.12. "original.dot" is original version before reduction.
[erg] I find that the reduced version also fails on 2.12. Input file: b1144.dot