Array.dfy(13,7): Error: assignment may update an array element not in the enclosing context's modifies clause
Execution trace:
    (0,0): anon0
    (0,0): anon3_Then
Array.dfy(20,15): Error: target object may be null
Execution trace:
    (0,0): anon0
Array.dfy(26,5): Error: index out of range
Execution trace:
    (0,0): anon0
Array.dfy(50,19): Error: assertion violation
Execution trace:
    (0,0): anon0
    (0,0): anon8_Then
    (0,0): anon2
    (0,0): anon9_Then
    (0,0): anon10_Then
    (0,0): anon5
    (0,0): anon7
Array.dfy(58,7): Error: assignment may update an array element not in the enclosing context's modifies clause
Execution trace:
    (0,0): anon0
    (0,0): anon3_Then
Array.dfy(65,7): Error: assignment may update an array element not in the enclosing context's modifies clause
Execution trace:
    (0,0): anon0
    (0,0): anon3_Then
Array.dfy(108,20): Error: upper bound below lower bound or above length of array
Execution trace:
    (0,0): anon0
    (0,0): anon14_Else
    (0,0): anon18_Then
    (0,0): anon19_Then
    (0,0): anon20_Then
    (0,0): anon11
Array.dfy(118,7): Error: insufficient reads clause to read the indicated range of array elements
Execution trace:
    (0,0): anon0
    (0,0): anon10_Else
    (0,0): anon11_Then
    (0,0): anon12_Then
    (0,0): anon13_Then
    (0,0): anon9
Array.dfy(120,7): Error: insufficient reads clause to read the indicated range of array elements
Execution trace:
    (0,0): anon0
    (0,0): anon10_Else
    (0,0): anon11_Then
    (0,0): anon12_Then
    (0,0): anon13_Else
    (0,0): anon9
Array.dfy(121,7): Error: insufficient reads clause to read the indicated range of array elements
Execution trace:
    (0,0): anon0
    (0,0): anon10_Else
    (0,0): anon11_Then
    (0,0): anon12_Then
    (0,0): anon13_Else
    (0,0): anon9
Array.dfy(122,7): Error: insufficient reads clause to read the indicated range of array elements
Execution trace:
    (0,0): anon0
    (0,0): anon10_Else
    (0,0): anon11_Then
    (0,0): anon12_Then
    (0,0): anon13_Else
    (0,0): anon9
Array.dfy(160,5): Error: insufficient reads clause to read array element
Execution trace:
    (0,0): anon0
    (0,0): anon8_Else
    (0,0): anon9_Then
    (0,0): anon10_Then
    (0,0): anon7
Array.dfy(168,5): Error: insufficient reads clause to read array element
Execution trace:
    (0,0): anon0
    (0,0): anon6_Else
    (0,0): anon7_Then
    (0,0): anon5
Array.dfy(184,5): Error: assignment may update an array element not in the enclosing context's modifies clause
Execution trace:
    (0,0): anon0
Array.dfy(191,5): Error: assignment may update an array element not in the enclosing context's modifies clause
Execution trace:
    (0,0): anon0
Array.dfy(216,0): Error BP5003: A postcondition might not hold on this return path.
Array.dfy(215,10): Related location: This is the postcondition that might not hold.
Execution trace:
    (0,0): anon0
Array.dfy(240,0): Error BP5003: A postcondition might not hold on this return path.
Array.dfy(239,10): Related location: This is the postcondition that might not hold.
Execution trace:
    (0,0): anon0
Array.dfy(246,0): Error BP5003: A postcondition might not hold on this return path.
Array.dfy(245,10): Related location: This is the postcondition that might not hold.
Execution trace:
    (0,0): anon0
Array.dfy(255,12): Error: value does not satisfy the subset constraints of 'nat'
Execution trace:
    (0,0): anon0
    (0,0): anon5_Then
    (0,0): anon2
    (0,0): anon6_Then
Array.dfy(256,5): Error: value does not satisfy the subset constraints of 'nat'
Execution trace:
    (0,0): anon0
    (0,0): anon5_Then
    (0,0): anon2
    (0,0): anon6_Then
Array.dfy(257,12): Error: value does not satisfy the subset constraints of 'nat'
Execution trace:
    (0,0): anon0
    (0,0): anon5_Then
    (0,0): anon2
    (0,0): anon6_Then
Array.dfy(258,6): Error: value does not satisfy the subset constraints of 'nat'
Execution trace:
    (0,0): anon0
    (0,0): anon5_Then
    (0,0): anon2
    (0,0): anon6_Then
Array.dfy(260,4): Error: value does not satisfy the subset constraints of 'nat'
Execution trace:
    (0,0): anon0
    (0,0): anon5_Then
    (0,0): anon2
    (0,0): anon6_Then

Dafny program verifier finished with 37 verified, 23 errors
