ParallelAssignment.bpl(32,3): Error BP5001: This assertion might not hold.
Execution trace:
    ParallelAssignment.bpl(21,5): anon0
ParallelAssignment.bpl(41,3): Error BP5001: This assertion might not hold.
Execution trace:
    ParallelAssignment.bpl(21,5): anon0
ParallelAssignment.bpl(60,3): Error BP5001: This assertion might not hold.
Execution trace:
    ParallelAssignment.bpl(46,11): anon0

Boogie program verifier finished with 0 verified, 3 errors