iter =   1, Function value 4575.71, Residual: 415.163 
iter =   2, Function value 4575.71, Residual: 4866.69 
iter =   3, Function value 4575.71, Residual: 767.439 
iter =   4, Function value 4427.44, Residual: 3259.19 
iter =   5, Function value 4427.44, Residual: 612.039 
iter =   6, Function value 4427.44, Residual: 205.93 
iter =   7, Function value 3206.69, Residual: 284.234 
iter =   8, Function value 3206.69, Residual: 82.5165 
iter =   9, Function value 2457.86, Residual: 62.0417 
iter =  10, Function value 2449.98, Residual: 226.476 
iter =  11, Function value 2449.98, Residual: 47.0525 
iter =  12, Function value 2449.58, Residual: 78.2142 
iter =  13, Function value 2387.41, Residual: 256.941 
iter =  14, Function value 2385.19, Residual: 32.0328 
iter =  15, Function value 2384.91, Residual: 309.625 
iter =  16, Function value 2384.91, Residual: 37.7759 
iter =  17, Function value 2384.49, Residual: 10.5968 
iter =  18, Function value 2384.48, Residual: 12.7888 
iter =  19, Function value 2384.48, Residual: 5.91591 
iter =  20, Function value 2384.48, Residual: 0.69426 
iter =  21, Function value 2384.48, Residual: 0.0084137