iter =   0, Function value 4575.71, Residual: 1815.3 
iter =   1, Function value 4575.71, Residual: 415.165 
iter =   2, Function value 4575.71, Residual: 4876.19 
iter =   3, Function value 4575.71, Residual: 767.882 
iter =   4, Function value 4427.67, Residual: 12937.9 
iter =   5, Function value 4427.67, Residual: 3255.26 
iter =   6, Function value 4427.67, Residual: 824.472 
iter =   7, Function value 3389.64, Residual: 5218.5 
iter =   8, Function value 3389.64, Residual: 1370.54 
iter =   9, Function value 2973.48, Residual: 2305.36 
iter =  10, Function value 2492.93, Residual: 1360.85 
iter =  11, Function value 2426.87, Residual: 16.2744 
iter =  12, Function value 2426.87, Residual: 1.40116 
iter =  13, Function value 2426.87, Residual: 0.342707 
iter =  14, Function value 2425.74, Residual: 0.816928 
iter =  15, Function value 2425.74, Residual: 0.187558 
iter =  16, Function value 2414.13, Residual: 1.16619 
iter =  17, Function value 2398.88, Residual: 64.6581 
iter =  18, Function value 2392.66, Residual: 962.471 
iter =  19, Function value 2392.16, Residual: 629.538 
iter =  20, Function value 2392.16, Residual: 305.995 
iter =  21, Function value 2384.52, Residual: 10.8197 
iter =  22, Function value 2384.49, Residual: 9.62159 
iter =  23, Function value 2384.49, Residual: 1.29796 
iter =  24, Function value 2384.48, Residual: 4.26155 
iter =  25, Function value 2384.48, Residual: 0.74312 
iter =  26, Function value 2384.48, Residual: 0.0107292 