splitmix64 birthday test (https://www.pcg-random.org/posts/birthday-test.html)

splitmix64.txt

> time ./birthday.spitmix64skip65536.sort 10
Testing skipping_rng<SplitMix64,65536>
	0..281474976710655 is range of generator
	75029991 outputs to scan for duplicates [4.47214*sqrt(range)]
	10 duplicates expected on average
	4.54e-05 is probability of zero duplicates
	0x3b218eae is seed for this run
---
- Testing for repeats started...
  - Allocating memory started...
    - allocated array of size 75029991.
  - Allocating memory completed (3.5211e-05 seconds)
  - Storing PRNG output started...
  - Storing PRNG output completed (5656.39 seconds)
  - Sorting started...
  - Sorting completed (6.99436 seconds)
  - Scanning for duplicates started...
  - Scanning for duplicates completed (0.0476108 seconds)
- Testing for repeats completed (5663.44 seconds)
---
0 repeats, p-value = 4.54e-05

________________________________________________________
Executed in   94,39 mins   fish           external 
   usr time   94,35 mins  806,00 micros   94,35 mins 
   sys time    0,02 mins  145,00 micros    0,02 mins