Termination.dfy[TerminationRefinement1](441,6): Error: failure to decrease termination measure
Execution trace:
    (0,0): anon0
Termination.dfy(361,47): Error: failure to decrease termination measure
Execution trace:
    (0,0): anon0
    (0,0): anon7_Else
    (0,0): anon8_Then
    (0,0): anon9_Else
Termination.dfy(108,3): Error: cannot prove termination; try supplying a decreases clause for the loop
Execution trace:
    (0,0): anon0
    Termination.dfy(108,3): anon6_LoopHead
    (0,0): anon6_LoopBody
    Termination.dfy(108,3): anon7_Else
    Termination.dfy(108,3): anon8_Else
Termination.dfy(116,3): Error: cannot prove termination; try supplying a decreases clause for the loop
Execution trace:
    (0,0): anon0
    Termination.dfy(116,3): anon8_LoopHead
    (0,0): anon8_LoopBody
    Termination.dfy(116,3): anon9_Else
    (0,0): anon10_Then
    (0,0): anon5
    Termination.dfy(116,3): anon11_Else
Termination.dfy(125,3): Error: decreases expression might not decrease
Execution trace:
    (0,0): anon0
    Termination.dfy(125,3): anon8_LoopHead
    (0,0): anon8_LoopBody
    Termination.dfy(125,3): anon9_Else
    (0,0): anon10_Then
    (0,0): anon5
    Termination.dfy(125,3): anon11_Else
Termination.dfy(126,17): Error: decreases expression must be bounded below by 0 at end of loop iteration
Execution trace:
    (0,0): anon0
    Termination.dfy(125,3): anon8_LoopHead
    (0,0): anon8_LoopBody
    Termination.dfy(125,3): anon9_Else
    (0,0): anon10_Then
    (0,0): anon5
    Termination.dfy(125,3): anon11_Else
Termination.dfy(255,35): Error: cannot prove termination; try supplying a decreases clause
Execution trace:
    (0,0): anon0
    (0,0): anon6_Else
    (0,0): anon7_Else
    (0,0): anon8_Then
Termination.dfy(296,3): Error: decreases expression might not decrease
Execution trace:
    Termination.dfy(296,3): anon9_LoopHead
    (0,0): anon9_LoopBody
    Termination.dfy(296,3): anon10_Else
    Termination.dfy(296,3): anon11_Else
    (0,0): anon12_Else

Dafny program verifier finished with 62 verified, 8 errors