Hi, the DAB Monobit2 test cannot use ntup higher thtn 15 due to the fixed allocations.
(It means it calculates data for block sizes up to 2^ntup blocks, so it make kind-of sense.) I added check to prevent overflow, this is perhaps the best we can do here (more details in description), see: https://github.com/eddelbuettel/dieharder/pull/24 Milan
