ChainingDisjointTests.dfy(49,2): Error BP5003: A postcondition might not hold on this return path.
ChainingDisjointTests.dfy(48,14): Related location: This is the postcondition that might not hold.
ChainingDisjointTests.dfy(42,22): Related location
Execution trace:
    (0,0): anon0
ChainingDisjointTests.dfy(58,13): Error: assertion violation
Execution trace:
    (0,0): anon0
    ChainingDisjointTests.dfy(58,19): anon5_Else
    ChainingDisjointTests.dfy(58,24): anon6_Else
    (0,0): anon4
ChainingDisjointTests.dfy(58,18): Error: assertion violation
Execution trace:
    (0,0): anon0
    (0,0): anon5_Then
    ChainingDisjointTests.dfy(58,24): anon6_Else
    (0,0): anon4
ChainingDisjointTests.dfy(58,23): Error: assertion violation
Execution trace:
    (0,0): anon0
    (0,0): anon5_Then
    (0,0): anon6_Then
    (0,0): anon4

Dafny program verifier finished with 4 verified, 4 errors
