dot -Teps -oprimes.eps primes.dot
gdb tells that the crash is triggered in triangulate() which is passed an invalid polygon.
I could not find a workaround, tuning parameters (letter sizes...)
sometimes makes the bug disappear.
Input file: b2111.gv
[erg] If you comment out the last edge, the problem goes away. However, the resulting output shows that the second edge, from keysOut to stamps, is broken. Only by removing all port names and compass points do you get a good edge. It almost appears that some node translation is not being done.
I have attached a smaller example with
output. The cluster is necessary to cause the