It seems to me that if I use any of the new Builtins functions the clb test will fail with :
(CekError An error has occurred:
The machine terminated part way through evaluation due to overspending the budget.
The budget when the machine terminated was:
({cpu: -9223372026854775807
| mem: -9223372036840775807})
I have tested with blake_224 , integerToByteString and byteStringToInteger