MINOS 5.5: unbounded (or badly scaled) problem.
46 iterations
Nonlin evals: constrs = 107, Jac = 106.
Objective = find a feasible point.
a = -2490710
b = 2490710
c = 5670800
d = -5670810
t = 4461.14
u = -1156.16
v = 7455.93
w = -6557.3