iter= 1, s= 1.500000, a= 1.500000, E=  -0.4375, size= 0.0333333
iter= 2, s= 1.475000, a= 1.425000, E= -0.447081, size= 0.0440959
iter= 3, s= 1.475000, a= 1.425000, E= -0.447081, size= 0.0440959
iter= 4, s= 1.350000, a= 1.350000, E= -0.463971, size= 0.0726483
iter= 5, s= 1.387500, a= 1.212500, E= -0.468836, size= 0.102402
iter= 6, s= 1.156250, a= 0.993750, E= -0.486604, size= 0.178292
iter= 7, s= 1.156250, a= 0.993750, E= -0.486604, size= 0.143573
iter= 8, s= 0.925781, a= 0.905469, E= -0.493989, size= 0.208296
iter= 9, s= 0.925781, a= 0.905469, E= -0.493989, size= 0.135869
iter=10, s= 0.945508, a= 0.999805, E= -0.498525, size= 0.135869
iter=11, s= 1.055811, a= 1.020361, E= -0.499183, size= 0.0760012
iter=12, s= 1.055811, a= 1.020361, E= -0.499183, size= 0.0549336
iter=13, s= 1.055811, a= 1.020361, E= -0.499183, size= 0.0549336
iter=14, s= 0.977512, a= 0.994437, E= -0.49984, size= 0.0481213
iter=15, s= 0.977512, a= 0.994437, E= -0.49984, size= 0.0378057
iter=16, s= 1.019768, a= 1.004437, E= -0.499874, size= 0.0198539
iter=17, s= 1.002990, a= 1.007861, E= -0.499958, size= 0.0182825
iter=18, s= 0.994445, a= 1.000293, E= -0.499983, size= 0.0109644
iter=19, s= 0.994445, a= 1.000293, E= -0.499983, size= 0.00680739
iter=20, s= 1.000699, a= 0.996688, E= -0.499986, size= 0.00680739
iter=21, s= 1.003407, a= 1.001374, E= -0.499997, size= 0.00425406
iter=22, s= 0.998249, a= 0.999662, E= -0.499999, size= 0.00286104
iter=23, s= 0.998249, a= 0.999662, E= -0.499999, size= 0.00239555
iter=24, s= 1.000796, a= 0.999560, E= -0.499999, size= 0.00226427
iter=25, s= 1.001465, a= 1.000492, E= -0.499999, size= 0.00144697
converged
iter=26, s= 0.999690, a= 0.999844, E=     -0.5, size= 0.000829441