Error trying a brute force - integer overflow?

[rico]

I'd imagine it's to do with the unfathomably large keyspace you're using - that mask tops out at 95^19 permutations!!!

As an FYI, using the 1080Ti benchmark epixoip posted a couple of days ago would take a 1080Ti approximately 6502147701243443 times the age of the Universe (13.8 billions years) to exhaust.

And you don't even have one. Best of luck though.