Processing command (at Snapshots6.v0.dfy(20,14)) assert false;
  >>> DoNothingToAssert

Dafny program verifier finished with 1 verified, 0 errors
Processing command (at Snapshots6.v1.dfy(20,14)) assert false;
  >>> DoNothingToAssert
Snapshots6.v1.dfy(20,13): Error: assertion might not hold

Dafny program verifier finished with 0 verified, 1 error
