b  = 0.2500000 
e3 = 1.0000000 
e4 = 1.0000000 
e5 = 1.0000000 
Best solution found with func val = 8.5444486:
aa = 0.4999996
ab = 0.0000000
ac = 0.0000004
ua = 0.0695150
ub = 0.0000000
uc = 0.0148074
ud = 0.0124991