Warning: this way of using the CLI is deprecated. Use 'dafny --help' to see help for the new Dafny CLI format

Verifying foo (correctness) ...
  [1 proof obligation]  error
git-issue59.legacy.dfy(7,17): Error: value does not satisfy the subset constraints of 'byte'

Dafny program verifier finished with 0 verified, 1 error
