Error in cdt.c "should not be reached aborting..."

I am running Graphviz 2.38 (currently latest) on Windows and receive the following as a message box.

** ERROR **: file .\cdt.c: line 974: should not be reached

The command line I'm using is:

"C:\Program Files (x86)\Graphviz2.38\bin\sfdp.exe" -O -Tpng sample.gv

I have simplified my input file (attached) as much as possible and still receive the error.

Thanks for your time.


sample.txt9.22 KB

It is a bug. I would

It is a bug. I would appreciate it if you could submit a bug report at

As a workaround, you should be able to use overlap=false.

Thanks for the quick response

I will submit the bug report, but I'm unable to log into that site.  I have attempted to change my password several times today by requesting the change password email.  I get the email and can use the single sign on.  I put in a new password, confirm it and click save.  I don't get a confirmation that it was successful, but don't see any errors on the page either.  

I'm sure I'm missing something... Any help would be appreciated.


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