ErrorTraceTestLoopInvViolationBPL.bpl(9,3): Error BP5001: This assertion might not hold.
Execution trace:
    ErrorTraceTestLoopInvViolationBPL.bpl(7,5): anon0
ErrorTraceTestLoopInvViolationBPL.bpl(18,16): Error BP5004: This loop invariant might not hold on entry.
Execution trace:
    ErrorTraceTestLoopInvViolationBPL.bpl(16,5): anon0
ErrorTraceTestLoopInvViolationBPL.bpl(29,17): Error BP5005: This loop invariant might not be maintained by the loop.
Execution trace:
    ErrorTraceTestLoopInvViolationBPL.bpl(27,5): anon0
    ErrorTraceTestLoopInvViolationBPL.bpl(29,3): anon2_LoopHead
    ErrorTraceTestLoopInvViolationBPL.bpl(30,7): anon2_LoopBody

Boogie program verifier finished with 0 verified, 3 errors