MINOS 5.5: infeasible problem (or bad starting guess).
247 iterations
Nonlin evals: constrs = 383, Jac = 382.
Objective = find a feasible point.
a = -9.36746
b = 10
c = 8.65466
d = -10
t = -10
u = -9.33586
v = -8.76994
w = -10
x = 0.173049
y = 0.0624387