Modules1.dfy(10,8): Error: target object may not be allocated
Execution trace:
    (0,0): anon0
    (0,0): anon4_Else
Modules1.dfy(79,15): Error: assertion violation
Execution trace:
    (0,0): anon0
    (0,0): anon3_Then
Modules1.dfy(92,15): Error: assertion violation
Execution trace:
    (0,0): anon0
    (0,0): anon3_Then
Modules1.dfy(94,18): Error: assertion violation
Execution trace:
    (0,0): anon0
    (0,0): anon3_Else
Modules1.dfy(208,16): Error: assertion violation
Execution trace:
    (0,0): anon0
Modules1.dfy(209,22): Error: assertion violation
Execution trace:
    (0,0): anon0
Modules1.dfy(210,22): Error: assertion violation
Execution trace:
    (0,0): anon0
Modules1.dfy(216,16): Error: assertion violation
Execution trace:
    (0,0): anon0
Modules1.dfy(217,16): Error: assertion violation
Execution trace:
    (0,0): anon0
Modules1.dfy(218,16): Error: assertion violation
Execution trace:
    (0,0): anon0
Modules1.dfy(56,8): Error: decreases expression must be bounded below by 0
Modules1.dfy(54,12): Related location
Execution trace:
    (0,0): anon0
Modules1.dfy(62,8): Error: failure to decrease termination measure
Execution trace:
    (0,0): anon0

Dafny program verifier finished with 8 verified, 12 errors
