1Activating post step checking routine 2Activating pre step checking routine 3atol=1e-50, rtol=1e-08, stol=1e-08, maxit=50, maxf=10000 4iter = 0,SNES Function norm 5.41468 5iter = 1,SNES Function norm 0.295258 6Checking candidate step at iteration 1 with tolerance 1. 7 Altering entry 0: x=0., x_last=0., diff=2., x_new=0. 8 Altering entry 1: x=0.0155991, x_last=0.0013819, diff=1.08859, x_new=0.00710858 9iter = 2,SNES Function norm 0.303701 10Checking candidate step at iteration 2 with tolerance 1. 11 Altering entry 0: x=0., x_last=0., diff=2., x_new=0. 12iter = 3,SNES Function norm 7.24709e-05 13Checking candidate step at iteration 3 with tolerance 1. 14 Altering entry 0: x=0., x_last=0., diff=2., x_new=0. 15iter = 4,SNES Function norm 1.30874e-11 16Number of SNES iterations = 4 17Norm of error 1.26526e-12 Iterations 4 18