[Ipopt] Problem with some luksan examples

[ycollette.nospam at free.fr]

Hello,

I compiled ipopt (trunk version) with mumps.
Some luksan examples run via solve_problem executable doesn't seems to work.

LukVlE7: dimension 4

EXIT: Invalid number in NLP function or derivative detected.

LukVlI7: dimension 4

EXIT: Invalid number in NLP function or derivative detected.

MBndryCntrl2: dimension 14

EXIT: Invalid number in NLP function or derivative detected.

MDistCntrl6a: dimension 10

EXIT: Converged to a point of local infeasibility. Problem may be infeasible.

MPara5_2_1: dimension 10

EXIT: Invalid number in NLP function or derivative detected.

MPara5_2_2: dimension 10 

EXIT: Invalid number in NLP function or derivative detected.

Best regards,

YC