I’ll need the entire input file to try to reproduce anything.
There should be additional information that was written to stderr. Depending on details of the computer you ran this on, that could have been outputted to the terminal or some other file. If you have that, please give that to me.
The 500 MiB line is almost certainly not the problem. That is the memory Psi thinks it needs before it processes your input file. Very early in the output file, you should see it change the amount of memory it uses to your 60 GB.
I recommend that you check to see if you have set your scratch directory properly, especially if this is your first time using Psi4 for a large calculation.