splitting-picks-the-right-tokens.dfy(9,11): Info: Selected triggers: {Id(x)}
splitting-picks-the-right-tokens.dfy(16,11): Info: Selected triggers: {Id(x)}
splitting-picks-the-right-tokens.dfy(20,12): Error BP5002: A precondition for this call might not hold.
splitting-picks-the-right-tokens.dfy(16,11): Related location: This is the precondition that might not hold.
splitting-picks-the-right-tokens.dfy(16,39): Related location
Execution trace:
    (0,0): anon0
    (0,0): anon3_Then
splitting-picks-the-right-tokens.dfy(22,13): Error BP5002: A precondition for this call might not hold.
splitting-picks-the-right-tokens.dfy(9,11): Related location: This is the precondition that might not hold.
splitting-picks-the-right-tokens.dfy(9,37): Related location
Execution trace:
    (0,0): anon0
    (0,0): anon3_Else

Dafny program verifier finished with 0 verified, 2 errors
