Frame.dfy(23,16): Error: assertion violation
Execution trace:
    (0,0): anon0
    Frame.dfy(19,13): anon5_Else
    (0,0): anon6_Then
Frame.dfy(37,14): Error: assertion violation
Execution trace:
    (0,0): anon0
    Frame.dfy(33,13): anon3_Else
Frame.dfy(63,23): Error: assertion violation
Execution trace:
    (0,0): anon0
    (0,0): anon13_Then
    Frame.dfy(55,13): anon14_Else
    (0,0): anon15_Then
    (0,0): anon5
Frame.dfy(66,19): Error: insufficient reads clause to read array element
Execution trace:
    (0,0): anon0
    (0,0): anon16_Then
    (0,0): anon17_Then
Frame.dfy(68,28): Error: insufficient reads clause to read array element
Execution trace:
    (0,0): anon0
    (0,0): anon16_Else
    (0,0): anon18_Then
Frame.dfy(123,14): Error: possible violation of function precondition
Execution trace:
    (0,0): anon0
    (0,0): anon5_Then
    (0,0): anon6_Else
Frame.dfy(123,19): Error: assertion violation
Execution trace:
    (0,0): anon0
    (0,0): anon5_Then
    (0,0): anon6_Else

Dafny program verifier finished with 14 verified, 7 errors