Definedness.dfy(11,7): Error: possible division by zero
Execution trace:
    (0,0): anon0
    (0,0): anon3_Else
Definedness.dfy(18,16): Error: possible division by zero
Execution trace:
    (0,0): anon0
Definedness.dfy(27,16): Error: target object may be null
Execution trace:
    (0,0): anon0
Definedness.dfy(28,21): Error: target object may be null
Execution trace:
    (0,0): anon0
    (0,0): anon3_Then
Definedness.dfy(29,17): Error: possible division by zero
Execution trace:
    (0,0): anon0
Definedness.dfy(36,16): Error: target object may be null
Execution trace:
    (0,0): anon0
Definedness.dfy(45,16): Error: target object may be null
Execution trace:
    (0,0): anon0
Definedness.dfy(53,18): Error: target object may be null
Execution trace:
    (0,0): anon0
Definedness.dfy(54,3): Error BP5003: A postcondition might not hold on this return path.
Definedness.dfy(53,22): Related location: This is the postcondition that might not hold.
Execution trace:
    (0,0): anon0
Definedness.dfy(60,18): Error: target object may be null
Execution trace:
    (0,0): anon0
Definedness.dfy(61,3): Error BP5003: A postcondition might not hold on this return path.
Definedness.dfy(60,22): Related location: This is the postcondition that might not hold.
Execution trace:
    (0,0): anon0
Definedness.dfy(68,3): Error BP5003: A postcondition might not hold on this return path.
Definedness.dfy(67,22): Related location: This is the postcondition that might not hold.
Execution trace:
    (0,0): anon0
Definedness.dfy(88,7): Error: target object may be null
Execution trace:
    (0,0): anon0
Definedness.dfy(89,5): Error: possible violation of function precondition
Definedness.dfy(79,16): Related location
Execution trace:
    (0,0): anon0
Definedness.dfy(89,10): Error: assignment may update an object not in the enclosing context's modifies clause
Execution trace:
    (0,0): anon0
Definedness.dfy(89,10): Error: target object may be null
Execution trace:
    (0,0): anon0
Definedness.dfy(90,10): Error: possible violation of function precondition
Definedness.dfy(79,16): Related location
Execution trace:
    (0,0): anon0
Definedness.dfy(95,14): Error: possible division by zero
Execution trace:
    (0,0): anon0
Definedness.dfy(95,23): Error: possible division by zero
Execution trace:
    (0,0): anon0
Definedness.dfy(96,15): Error: possible division by zero
Execution trace:
    (0,0): anon0
Definedness.dfy(101,12): Error: possible division by zero
Execution trace:
    (0,0): anon0
Definedness.dfy(108,15): Error: possible division by zero
Execution trace:
    Definedness.dfy(108,5): anon7_LoopHead
    (0,0): anon7_LoopBody
    Definedness.dfy(108,5): anon8_Else
Definedness.dfy(117,23): Error: possible violation of function precondition
Definedness.dfy(79,16): Related location
Execution trace:
    (0,0): anon0
    Definedness.dfy(116,5): anon12_LoopHead
    (0,0): anon12_LoopBody
    (0,0): anon13_Then
Definedness.dfy(123,17): Error: possible violation of function precondition
Definedness.dfy(79,16): Related location
Execution trace:
    (0,0): anon0
    Definedness.dfy(116,5): anon12_LoopHead
    (0,0): anon12_LoopBody
    Definedness.dfy(116,5): anon13_Else
    (0,0): anon14_Then
    Definedness.dfy(122,5): anon15_LoopHead
    (0,0): anon15_LoopBody
    (0,0): anon16_Then
Definedness.dfy(133,17): Error: possible violation of function precondition
Definedness.dfy(79,16): Related location
Execution trace:
    (0,0): anon0
    Definedness.dfy(132,5): anon6_LoopHead
    (0,0): anon6_LoopBody
    (0,0): anon7_Then
Definedness.dfy(133,22): Error BP5004: This loop invariant might not hold on entry.
Execution trace:
    (0,0): anon0
Definedness.dfy(134,17): Error: possible violation of function precondition
Definedness.dfy(79,16): Related location
Execution trace:
    (0,0): anon0
    Definedness.dfy(132,5): anon6_LoopHead
    (0,0): anon6_LoopBody
    (0,0): anon7_Then
Definedness.dfy(143,15): Error: possible division by zero
Execution trace:
    (0,0): anon0
    Definedness.dfy(143,5): anon8_LoopHead
    (0,0): anon8_LoopBody
    Definedness.dfy(143,5): anon9_Else
Definedness.dfy(162,15): Error: possible division by zero
Execution trace:
    (0,0): anon0
    Definedness.dfy(156,5): anon16_LoopHead
    (0,0): anon16_LoopBody
    Definedness.dfy(156,5): anon17_Else
    (0,0): anon18_Then
    (0,0): anon5
    (0,0): anon19_Then
    Definedness.dfy(162,5): anon20_LoopHead
    (0,0): anon20_LoopBody
    Definedness.dfy(162,5): anon21_Else
Definedness.dfy(175,28): Error BP5004: This loop invariant might not hold on entry.
Execution trace:
    (0,0): anon0
Definedness.dfy(181,17): Error: possible violation of function precondition
Definedness.dfy(79,16): Related location
Execution trace:
    (0,0): anon0
    Definedness.dfy(173,5): anon18_LoopHead
    (0,0): anon18_LoopBody
    Definedness.dfy(173,5): anon19_Else
    (0,0): anon20_Then
    Definedness.dfy(180,5): anon21_LoopHead
    (0,0): anon21_LoopBody
    (0,0): anon22_Then
    (0,0): anon23_Then
    (0,0): anon11
Definedness.dfy(196,19): Error: possible division by zero
Execution trace:
    (0,0): anon0
    Definedness.dfy(194,5): anon6_LoopHead
    (0,0): anon6_LoopBody
    (0,0): anon7_Then
Definedness.dfy(196,23): Error BP5004: This loop invariant might not hold on entry.
Execution trace:
    (0,0): anon0
Definedness.dfy(196,28): Error: possible division by zero
Execution trace:
    (0,0): anon0
    Definedness.dfy(194,5): anon6_LoopHead
    (0,0): anon6_LoopBody
    (0,0): anon7_Then
Definedness.dfy(215,10): Error BP5003: A postcondition might not hold on this return path.
Definedness.dfy(217,46): Related location: This is the postcondition that might not hold.
Execution trace:
    (0,0): anon0
    (0,0): anon5_Else
Definedness.dfy(224,22): Error: target object may be null
Execution trace:
    (0,0): anon0
    (0,0): anon5_Then
    (0,0): anon2
    (0,0): anon6_Then
Definedness.dfy(237,10): Error BP5003: A postcondition might not hold on this return path.
Definedness.dfy(240,24): Related location: This is the postcondition that might not hold.
Execution trace:
    (0,0): anon0
    (0,0): anon7_Then
    (0,0): anon2
    (0,0): anon8_Else

Dafny program verifier finished with 21 verified, 37 errors