circo and twopi crash on a tree-like graph with ~170000 nodes.
Steps to reproduce
time twopi -v -Tjpg test-for-bugreport.dot > test-twopi.jpg
Image generated correctly.
This graph is generated from an Android Sdk directory tree with the help of a program. https://gitlab.com/Lockywolf/scsh-xattr-mindmap
Contrary to the name, the generator uses neither scsh (the new version is written using chibi-scheme), nor xattrs. The graph is probably a tree, although I haven't checked the full file, but I don't think there are links in the Android Sdk.