diff --git a/examples/log/bipedal_walking_from_foot_traj.log b/examples/log/bipedal_walking_from_foot_traj.log
new file mode 100644
index 0000000000000000000000000000000000000000..49b62ed2c21b3a84101083024ff52ca2138a1a28
--- /dev/null
+++ b/examples/log/bipedal_walking_from_foot_traj.log
@@ -0,0 +1,48 @@
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  1.03743e+06  1.63259e+06  1.94435e+05  1.00000e-02  1.00000e-02  1.0000
+   1  5.97316e+05  2.53455e+08  2.05505e+06  1.00000e-02  1.00000e-02  0.2500
+   2  2.30384e+04  1.44429e+08  1.17797e+06  1.00000e-03  1.00000e-03  1.0000
+   3  1.36815e+04  4.82046e+06  3.88945e+04  1.00000e-03  1.00000e-03  0.2500
+   4  8.90606e+03  2.04226e+06  2.10165e+04  1.00000e-03  1.00000e-03  0.2500
+   5  3.20731e+03  9.08737e+05  1.22647e+04  1.00000e-04  1.00000e-04  1.0000
+   6  2.46061e+03  1.66476e+05  3.79151e+03  1.00000e-04  1.00000e-04  0.2500
+   7  1.92060e+03  1.15699e+05  3.16417e+03  1.00000e-04  1.00000e-04  0.2500
+   8  1.53405e+03  1.04004e+05  2.30158e+03  1.00000e-04  1.00000e-04  0.2500
+   9  1.26345e+03  9.23274e+04  1.59222e+03  1.00000e-04  1.00000e-04  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  10  1.07032e+03  7.57459e+04  1.07737e+03  1.00000e-04  1.00000e-04  0.2500
+  11  1.02033e+03  5.59143e+04  6.99169e+02  1.00000e-05  1.00000e-05  1.0000
+  12  7.20019e+02  8.71351e+04  6.10324e+02  1.00000e-06  1.00000e-06  1.0000
+  13  7.17740e+02  5.44786e+02  8.02101e+00  1.00000e-07  1.00000e-07  1.0000
+  14  7.17084e+02  9.05674e+01  2.74220e+00  1.00000e-08  1.00000e-08  1.0000
+  15  7.16896e+02  2.13022e+01  1.05561e+00  1.00000e-09  1.00000e-09  1.0000
+  16  7.16808e+02  5.16376e+00  4.95125e-01  1.00000e-09  1.00000e-09  1.0000
+  17  7.16773e+02  1.36548e+00  2.28039e-01  1.00000e-09  1.00000e-09  1.0000
+  18  7.16755e+02  2.99884e-01  1.11998e-01  1.00000e-09  1.00000e-09  1.0000
+  19  7.16747e+02  9.18306e-02  5.43141e-02  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  20  7.16743e+02  1.90320e-02  2.69976e-02  1.00000e-09  1.00000e-09  1.0000
+  21  7.16741e+02  7.38495e-03  1.32939e-02  1.00000e-09  1.00000e-09  1.0000
+  22  7.16740e+02  1.58445e-03  6.61657e-03  1.00000e-09  1.00000e-09  1.0000
+  23  7.16740e+02  8.25973e-04  3.27546e-03  1.00000e-09  1.00000e-09  1.0000
+  24  7.16740e+02  2.26278e-04  1.62836e-03  1.00000e-09  1.00000e-09  1.0000
+  25  7.16740e+02  1.34503e-04  8.07205e-04  1.00000e-09  1.00000e-09  1.0000
+  26  7.16739e+02  4.86384e-05  4.01096e-04  1.00000e-09  1.00000e-09  1.0000
+  27  7.16739e+02  2.79566e-05  1.98973e-04  1.00000e-09  1.00000e-09  1.0000
+  28  7.16739e+02  1.19196e-05  9.88209e-05  1.00000e-09  1.00000e-09  1.0000
+  29  7.16739e+02  6.44342e-06  4.90507e-05  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  30  7.16739e+02  2.97610e-06  2.43607e-05  1.00000e-09  1.00000e-09  1.0000
+  31  7.16739e+02  1.54713e-06  1.20940e-05  1.00000e-09  1.00000e-09  1.0000
+  32  7.16739e+02  7.42012e-07  6.00776e-06  1.00000e-09  1.00000e-09  1.0000
+  33  7.16739e+02  3.77206e-07  2.98370e-06  1.00000e-09  1.00000e-09  1.0000
+  34  7.16739e+02  1.84092e-07  1.48185e-06  1.00000e-09  1.00000e-09  1.0000
+  35  7.16739e+02  9.24567e-08  7.36004e-07  1.00000e-09  1.00000e-09  1.0000
+  36  7.16739e+02  4.55713e-08  3.65572e-07  1.00000e-09  1.00000e-09  1.0000
+  37  7.16739e+02  2.27640e-08  1.81546e-07  1.00000e-09  1.00000e-09  1.0000
+  38  7.16739e+02  1.12629e-08  9.01573e-08  1.00000e-09  1.00000e-09  1.0000
+  39  7.16739e+02  5.60949e-09  4.47761e-08  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  40  7.16739e+02  2.78019e-09  2.22346e-08  1.00000e-09  1.00000e-09  1.0000
+  41  7.16739e+02  1.38313e-09  1.10420e-08  1.00000e-09  1.00000e-09  1.0000
+  42  7.16739e+02  6.85855e-10  5.48248e-09  1.00000e-09  1.00000e-09  1.0000
diff --git a/examples/log/jump.log b/examples/log/jump.log
new file mode 100644
index 0000000000000000000000000000000000000000..4522bca2096e5cf28c0b873e7b3e5d1dc64d74ee
--- /dev/null
+++ b/examples/log/jump.log
@@ -0,0 +1,210 @@
+*** SOLVE initial ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  1.17752e+04  4.84898e+02  3.38333e+03  1.00000e-02  1.00000e-02  1.0000
+   1  4.38925e+03  8.91627e+02  2.22041e+04  1.00000e-02  1.00000e-02  0.2500
+   2  2.86041e+03  3.64311e+02  8.30093e+03  1.00000e-02  1.00000e-02  0.2500
+   3  2.25395e+03  1.29896e+02  3.82846e+03  1.00000e-02  1.00000e-02  0.2500
+   4  1.79721e+03  2.59220e+01  1.06197e+03  1.00000e-03  1.00000e-03  1.0000
+   5  1.44358e+03  1.87642e+01  1.70268e+03  1.00000e-03  1.00000e-03  0.2500
+   6  8.49918e+02  1.10607e+01  9.06348e+02  1.00000e-04  1.00000e-04  1.0000
+   7  7.16863e+02  2.10932e+00  2.32421e+02  1.00000e-05  1.00000e-05  1.0000
+   8  7.10433e+02  6.27027e-01  1.15715e+02  1.00000e-06  1.00000e-06  1.0000
+   9  6.23117e+02  1.26763e+00  2.53241e+02  1.00000e-07  1.00000e-07  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  10  6.11135e+02  5.30626e-01  7.76004e+01  1.00000e-07  1.00000e-07  0.2500
+  11  5.96321e+02  2.30251e-01  3.45654e+01  1.00000e-08  1.00000e-08  1.0000
+  12  5.93957e+02  7.22858e-02  1.19901e+01  1.00000e-09  1.00000e-09  1.0000
+  13  5.90864e+02  9.57831e-02  1.64044e+01  1.00000e-09  1.00000e-09  0.2500
+  14  5.88635e+02  1.97074e-02  5.06485e+00  1.00000e-09  1.00000e-09  1.0000
+  15  5.87593e+02  3.27825e-02  6.22724e+00  1.00000e-09  1.00000e-09  1.0000
+  16  5.85743e+02  6.04902e-02  1.01268e+01  1.00000e-09  1.00000e-09  0.2500
+  17  5.84894e+02  1.12212e-02  2.55826e+00  1.00000e-09  1.00000e-09  1.0000
+  18  5.84222e+02  1.92921e-02  3.57535e+00  1.00000e-09  1.00000e-09  0.2500
+  19  5.83682e+02  3.94028e-03  1.09975e+00  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  20  5.83515e+02  7.35790e-03  1.32151e+00  1.00000e-09  1.00000e-09  1.0000
+  21  5.83089e+02  1.25528e-02  2.36734e+00  1.00000e-09  1.00000e-09  0.2500
+  22  5.82920e+02  2.10550e-03  5.42967e-01  1.00000e-09  1.00000e-09  1.0000
+  23  5.82764e+02  5.08193e-03  8.35411e-01  1.00000e-09  1.00000e-09  0.2500
+  24  5.82637e+02  1.19380e-03  2.51561e-01  1.00000e-09  1.00000e-09  1.0000
+  25  5.82591e+02  1.28555e-03  3.19637e-01  1.00000e-09  1.00000e-09  1.0000
+  26  5.82486e+02  3.61672e-03  5.83199e-01  1.00000e-09  1.00000e-09  0.2500
+  27  5.82436e+02  7.55502e-04  1.39236e-01  1.00000e-09  1.00000e-09  1.0000
+  28  5.82396e+02  8.78973e-04  2.11194e-01  1.00000e-09  1.00000e-09  0.2500
+  29  5.82356e+02  1.87217e-04  6.97869e-02  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  30  5.82336e+02  4.94209e-04  8.57072e-02  1.00000e-09  1.00000e-09  1.0000
+  31  5.82309e+02  6.34412e-04  1.48856e-01  1.00000e-09  1.00000e-09  0.2500
+  32  5.82290e+02  1.12983e-04  4.02906e-02  1.00000e-09  1.00000e-09  1.0000
+  33  5.82284e+02  3.32002e-04  5.65712e-02  1.00000e-09  1.00000e-09  1.0000
+  34  5.82263e+02  4.59882e-04  1.25481e-01  1.00000e-09  1.00000e-09  0.2500
+  35  5.82251e+02  6.01760e-05  2.66700e-02  1.00000e-09  1.00000e-09  1.0000
+*** SOLVE landing ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  3.97747e+05  1.07194e+07  1.39810e+06  1.00000e-09  1.00000e-09  0.2500
+   1  3.83522e+03  6.06729e+06  7.93630e+05  1.00000e-09  1.00000e-09  1.0000
+   2  2.59941e+03  7.55297e+03  5.84094e+03  1.00000e-09  1.00000e-09  0.2500
+   3  1.91372e+03  4.21156e+03  3.27658e+03  1.00000e-09  1.00000e-09  0.2500
+   4  1.50543e+03  2.52392e+03  1.87729e+03  1.00000e-09  1.00000e-09  0.2500
+   5  1.12521e+03  1.49505e+03  1.05490e+03  1.00000e-09  1.00000e-09  1.0000
+   6  1.06569e+03  8.41869e+02  3.14549e+02  1.00000e-09  1.00000e-09  0.2500
+   7  9.98983e+02  5.29320e+02  2.01396e+02  1.00000e-09  1.00000e-09  1.0000
+   8  9.53458e+02  2.41810e+02  1.11477e+02  1.00000e-09  1.00000e-09  1.0000
+   9  9.43067e+02  1.09373e+02  5.51990e+01  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  10  9.36018e+02  6.85758e+01  3.61482e+01  1.00000e-09  1.00000e-09  0.2500
+  11  9.32849e+02  4.17018e+01  2.50392e+01  1.00000e-09  1.00000e-09  1.0000
+  12  9.20846e+02  5.54123e+01  2.86748e+01  1.00000e-09  1.00000e-09  1.0000
+  13  9.16790e+02  2.19141e+01  9.81442e+00  1.00000e-09  1.00000e-09  1.0000
+  14  9.14906e+02  7.21154e+00  5.54938e+00  1.00000e-09  1.00000e-09  1.0000
+  15  9.13739e+02  7.95856e+00  4.04728e+00  1.00000e-09  1.00000e-09  1.0000
+  16  9.13072e+02  1.82868e+00  3.48737e+00  1.00000e-09  1.00000e-09  0.2500
+  17  9.12643e+02  9.07874e-01  1.25880e+00  1.00000e-09  1.00000e-09  1.0000
+  18  9.12405e+02  6.58961e-01  1.22550e+00  1.00000e-09  1.00000e-09  0.2500
+  19  9.12166e+02  3.68469e-01  4.50616e-01  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  20  9.12064e+02  6.05674e-02  4.37950e-01  1.00000e-09  1.00000e-09  1.0000
+  21  9.11936e+02  1.17225e-01  6.85301e-01  1.00000e-09  1.00000e-09  0.2500
+  22  9.11810e+02  6.33621e-02  2.16856e-01  1.00000e-09  1.00000e-09  1.0000
+  23  9.11717e+02  2.39849e-02  2.72301e-01  1.00000e-09  1.00000e-09  1.0000
+  24  9.11673e+02  3.18881e-02  4.44807e-01  1.00000e-09  1.00000e-09  1.0000
+  25  9.11512e+02  4.60926e-02  8.87403e-01  1.00000e-09  1.00000e-09  0.2500
+  26  9.11394e+02  2.62107e-02  2.43793e-01  1.00000e-09  1.00000e-09  1.0000
+  27  9.11309e+02  2.48765e-02  3.75763e-01  1.00000e-09  1.00000e-09  1.0000
+  28  9.11175e+02  3.49071e-02  7.21250e-01  1.00000e-09  1.00000e-09  0.2500
+  29  9.11033e+02  2.28000e-02  2.34925e-01  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  30  9.10911e+02  2.62647e-02  3.40079e-01  1.00000e-09  1.00000e-09  1.0000
+  31  9.10796e+02  2.85872e-02  6.09433e-01  1.00000e-09  1.00000e-09  0.2500
+  32  9.10637e+02  2.21901e-02  2.31018e-01  1.00000e-09  1.00000e-09  1.0000
+  33  9.10493e+02  2.94269e-02  3.14356e-01  1.00000e-09  1.00000e-09  1.0000
+  34  9.10462e+02  2.63242e-02  5.26568e-01  1.00000e-09  1.00000e-09  1.0000
+  35  9.10249e+02  9.15375e-02  1.20273e+00  1.00000e-09  1.00000e-09  0.2500
+  36  9.10095e+02  5.69622e-02  3.07956e-01  1.00000e-09  1.00000e-09  1.0000
+  37  9.10062e+02  2.65940e-02  4.70903e-01  1.00000e-09  1.00000e-09  1.0000
+  38  9.09870e+02  9.55399e-02  1.09330e+00  1.00000e-09  1.00000e-09  0.2500
+  39  9.09733e+02  6.19876e-02  2.74205e-01  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  40  9.09654e+02  2.52812e-02  4.15128e-01  1.00000e-09  1.00000e-09  0.2500
+  41  9.09523e+02  2.68138e-02  1.74919e-01  1.00000e-09  1.00000e-09  1.0000
+  42  9.09424e+02  3.41631e-02  2.08241e-01  1.00000e-09  1.00000e-09  1.0000
+  43  9.09360e+02  1.96761e-02  3.40118e-01  1.00000e-09  1.00000e-09  0.2500
+  44  9.09265e+02  2.23826e-02  1.31005e-01  1.00000e-09  1.00000e-09  1.0000
+  45  9.09203e+02  2.89008e-02  1.54967e-01  1.00000e-09  1.00000e-09  1.0000
+  46  9.09153e+02  1.24245e-02  2.75262e-01  1.00000e-09  1.00000e-09  0.2500
+  47  9.09094e+02  1.48568e-02  8.81750e-02  1.00000e-09  1.00000e-09  1.0000
+  48  9.09066e+02  2.03960e-02  1.10165e-01  1.00000e-09  1.00000e-09  1.0000
+  49  9.09027e+02  6.62371e-03  2.26223e-01  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  50  9.08996e+02  7.73642e-03  5.50972e-02  1.00000e-09  1.00000e-09  1.0000
+  51  9.08990e+02  1.24863e-02  7.91407e-02  1.00000e-09  1.00000e-09  1.0000
+  52  9.08958e+02  4.04963e-03  1.93635e-01  1.00000e-09  1.00000e-09  0.2500
+  53  9.08944e+02  3.53258e-03  3.40560e-02  1.00000e-09  1.00000e-09  1.0000
+  54  9.08934e+02  7.30435e-03  6.04686e-02  1.00000e-09  1.00000e-09  0.2500
+  55  9.08922e+02  3.53556e-03  1.75109e-02  1.00000e-09  1.00000e-09  1.0000
+  56  9.08919e+02  6.95391e-04  2.21537e-02  1.00000e-09  1.00000e-09  1.0000
+  57  9.08910e+02  4.60634e-03  5.10851e-02  1.00000e-09  1.00000e-09  0.2500
+  58  9.08906e+02  1.71251e-03  9.74097e-03  1.00000e-09  1.00000e-09  1.0000
+  59  9.08903e+02  2.81070e-04  1.62856e-02  1.00000e-09  1.00000e-09  0.2500
+*** SOLVE frontal ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  6.46557e+04  3.11492e+04  2.20738e+05  1.00000e-09  1.00000e-09  0.2500
+   1  3.61433e+04  2.11524e+04  1.26638e+05  1.00000e-09  1.00000e-09  0.2500
+   2  2.07422e+04  1.22126e+04  6.97234e+04  1.00000e-09  1.00000e-09  0.2500
+   3  1.21979e+04  6.67048e+03  3.89615e+04  1.00000e-09  1.00000e-09  0.2500
+   4  2.18863e+03  3.70673e+03  2.18953e+04  1.00000e-09  1.00000e-09  1.0000
+   5  1.77623e+03  9.75814e+03  1.90439e+03  1.00000e-09  1.00000e-09  0.2500
+   6  1.32703e+03  5.67230e+03  1.08219e+03  1.00000e-09  1.00000e-09  1.0000
+   7  1.28240e+03  1.05444e+03  2.23612e+02  1.00000e-09  1.00000e-09  0.2500
+   8  1.23254e+03  6.39476e+02  1.31176e+02  1.00000e-09  1.00000e-09  1.0000
+   9  1.21289e+03  4.90546e+01  7.58401e+01  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  10  1.20705e+03  1.89466e+01  2.87102e+01  1.00000e-09  1.00000e-09  0.2500
+  11  1.20542e+03  1.08783e+01  2.45650e+01  1.00000e-09  1.00000e-09  1.0000
+  12  1.19395e+03  2.05161e+01  4.62086e+01  1.00000e-09  1.00000e-09  1.0000
+  13  1.18601e+03  7.59707e+01  4.59414e+01  1.00000e-09  1.00000e-09  0.2500
+  14  1.18010e+03  4.74974e+01  3.57104e+01  1.00000e-09  1.00000e-09  0.2500
+  15  1.17520e+03  3.10830e+01  2.76156e+01  1.00000e-09  1.00000e-09  0.2500
+  16  1.16979e+03  1.95424e+01  1.80814e+01  1.00000e-09  1.00000e-09  1.0000
+  17  1.16537e+03  1.19734e+01  1.04695e+01  1.00000e-09  1.00000e-09  1.0000
+  18  1.16431e+03  9.28818e+00  2.49838e+00  1.00000e-09  1.00000e-09  1.0000
+  19  1.16418e+03  2.11432e-01  8.01254e-01  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  20  1.16414e+03  1.30541e-01  2.04241e-01  1.00000e-09  1.00000e-09  1.0000
+  21  1.16410e+03  7.48464e-03  2.12085e-01  1.00000e-09  1.00000e-09  0.2500
+  22  1.16410e+03  5.97707e-03  3.24969e-02  1.00000e-09  1.00000e-09  0.2500
+  23  1.16409e+03  3.62137e-03  1.11515e-02  1.00000e-09  1.00000e-09  1.0000
+  24  1.16409e+03  1.34343e-04  6.06186e-03  1.00000e-09  1.00000e-09  0.2500
+*** SOLVE lateral ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  3.95826e+04  8.28784e+03  1.36707e+05  1.00000e-09  1.00000e-09  0.2500
+   1  2.27974e+04  4.88596e+03  7.69151e+04  1.00000e-09  1.00000e-09  0.2500
+   2  1.33070e+04  2.86973e+03  4.33723e+04  1.00000e-09  1.00000e-09  0.2500
+   3  7.95631e+03  1.69764e+03  2.44131e+04  1.00000e-09  1.00000e-09  0.2500
+   4  4.94506e+03  9.98378e+02  1.37268e+04  1.00000e-09  1.00000e-09  0.2500
+   5  1.24528e+03  5.83293e+02  7.71513e+03  1.00000e-09  1.00000e-09  1.0000
+   6  1.17756e+03  1.41556e+03  3.43043e+02  1.00000e-09  1.00000e-09  0.2500
+   7  1.14919e+03  9.16154e+02  2.08060e+02  1.00000e-09  1.00000e-09  1.0000
+   8  1.07055e+03  9.57607e+02  1.57847e+02  1.00000e-09  1.00000e-09  1.0000
+   9  1.06603e+03  1.02598e+01  7.18760e+00  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  10  1.06386e+03  3.63292e-01  3.98680e+00  1.00000e-09  1.00000e-09  1.0000
+  11  1.06264e+03  5.63401e-01  5.73930e+00  1.00000e-09  1.00000e-09  1.0000
+  12  1.06094e+03  1.17568e+00  1.23105e+01  1.00000e-09  1.00000e-09  0.2500
+  13  1.05871e+03  8.90601e-01  4.94598e+00  1.00000e-09  1.00000e-09  1.0000
+  14  1.05803e+03  1.26873e+00  5.72806e+00  1.00000e-09  1.00000e-09  1.0000
+  15  1.05658e+03  5.24885e+00  1.08083e+01  1.00000e-09  1.00000e-09  0.2500
+  16  1.05483e+03  3.38050e+00  4.01768e+00  1.00000e-09  1.00000e-09  1.0000
+  17  1.05434e+03  1.95388e+00  2.48208e+00  1.00000e-09  1.00000e-09  0.2500
+  18  1.05382e+03  1.13402e+00  9.68713e-01  1.00000e-09  1.00000e-09  1.0000
+  19  1.05373e+03  6.92773e-02  5.18577e-01  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  20  1.05362e+03  3.89748e-02  1.78973e-01  1.00000e-09  1.00000e-09  1.0000
+  21  1.05360e+03  2.79013e-03  1.28984e-01  1.00000e-09  1.00000e-09  0.2500
+  22  1.05357e+03  1.06669e-03  4.78157e-02  1.00000e-09  1.00000e-09  1.0000
+  23  1.05356e+03  4.84146e-04  3.92152e-02  1.00000e-09  1.00000e-09  1.0000
+*** SOLVE twist ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  1.25102e+06  1.03035e+07  4.50663e+06  1.00000e-09  1.00000e-09  0.2500
+   1  6.96448e+05  5.50090e+06  2.49997e+06  1.00000e-09  1.00000e-09  0.2500
+   2  3.91216e+05  3.16687e+06  1.39083e+06  1.00000e-09  1.00000e-09  0.2500
+   3  2.48657e+03  1.81163e+06  7.80381e+05  1.00000e-09  1.00000e-09  1.0000
+   4  1.72831e+03  1.68558e+04  3.00909e+03  1.00000e-09  1.00000e-09  0.2500
+   5  1.39556e+03  7.86263e+03  1.46638e+03  1.00000e-09  1.00000e-09  0.2500
+   6  1.11348e+03  4.12505e+03  7.98949e+02  1.00000e-09  1.00000e-09  1.0000
+   7  1.02522e+03  1.42417e+03  2.47630e+02  1.00000e-09  1.00000e-09  1.0000
+   8  1.02024e+03  3.01791e+02  8.12887e+01  1.00000e-09  1.00000e-09  1.0000
+   9  1.00533e+03  9.15913e+01  8.88639e+01  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  10  9.94638e+02  6.32033e+01  4.03602e+01  1.00000e-09  1.00000e-09  1.0000
+  11  9.89641e+02  3.79437e+01  2.64194e+01  1.00000e-09  1.00000e-09  0.2500
+  12  9.84874e+02  2.12862e+01  1.06981e+01  1.00000e-09  1.00000e-09  1.0000
+  13  9.83940e+02  3.06943e-01  4.89461e+00  1.00000e-09  1.00000e-09  0.2500
+  14  9.82833e+02  1.63210e-01  1.73742e+00  1.00000e-09  1.00000e-09  1.0000
+  15  9.82071e+02  5.09380e-02  2.20235e+00  1.00000e-09  1.00000e-09  1.0000
+  16  9.81327e+02  1.84922e-01  3.91515e+00  1.00000e-09  1.00000e-09  0.2500
+  17  9.80354e+02  1.07013e-01  1.42560e+00  1.00000e-09  1.00000e-09  1.0000
+  18  9.79621e+02  3.59286e-02  1.83811e+00  1.00000e-09  1.00000e-09  1.0000
+  19  9.79015e+02  1.51002e-01  3.18235e+00  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  20  9.78172e+02  8.80226e-02  1.19457e+00  1.00000e-09  1.00000e-09  1.0000
+  21  9.77582e+02  2.46122e-02  1.44727e+00  1.00000e-09  1.00000e-09  1.0000
+  22  9.77122e+02  1.06257e-01  2.44165e+00  1.00000e-09  1.00000e-09  0.2500
+  23  9.76541e+02  5.84889e-02  8.57744e-01  1.00000e-09  1.00000e-09  1.0000
+  24  9.76210e+02  1.41481e-02  1.00110e+00  1.00000e-09  1.00000e-09  1.0000
+  25  9.75886e+02  6.00242e-02  1.78373e+00  1.00000e-09  1.00000e-09  0.2500
+  26  9.75586e+02  2.93543e-02  5.10015e-01  1.00000e-09  1.00000e-09  1.0000
+  27  9.75474e+02  8.34873e-03  6.48179e-01  1.00000e-09  1.00000e-09  1.0000
+  28  9.75240e+02  3.23643e-02  1.33758e+00  1.00000e-09  1.00000e-09  0.2500
+  29  9.75112e+02  1.35240e-02  2.88576e-01  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  30  9.75028e+02  5.99756e-03  4.44540e-01  1.00000e-09  1.00000e-09  0.2500
+  31  9.74928e+02  1.89281e-03  1.51729e-01  1.00000e-09  1.00000e-09  1.0000
+  32  9.74880e+02  2.63301e-03  1.78020e-01  1.00000e-09  1.00000e-09  1.0000
+  33  9.74819e+02  4.40128e-03  3.39216e-01  1.00000e-09  1.00000e-09  0.2500
+  34  9.74771e+02  1.13637e-03  8.79782e-02  1.00000e-09  1.00000e-09  1.0000
+  35  9.74757e+02  1.67590e-03  1.25228e-01  1.00000e-09  1.00000e-09  1.0000
+  36  9.74709e+02  3.41738e-03  2.79454e-01  1.00000e-09  1.00000e-09  0.2500
+  37  9.74686e+02  7.39174e-04  5.68904e-02  1.00000e-09  1.00000e-09  1.0000
+  38  9.74668e+02  1.18968e-03  9.66873e-02  1.00000e-09  1.00000e-09  0.2500
+  39  9.74647e+02  4.02333e-04  3.13116e-02  1.00000e-09  1.00000e-09  1.0000
diff --git a/examples/log/salto.log b/examples/log/salto.log
new file mode 100644
index 0000000000000000000000000000000000000000..eaebfc45fefa5cae8108a5bca73ecd8d4db52536
--- /dev/null
+++ b/examples/log/salto.log
@@ -0,0 +1,290 @@
+*** SOLVE initial ***
+*** SOLVE angle ang=0.5 ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  2.03149e+04  1.27466e+05  8.41493e+04  1.00000e-02  1.00000e-02  1.0000
+   1  1.26146e+04  1.18408e+04  3.85829e+04  1.00000e-02  1.00000e-02  0.2500
+   2  7.89763e+03  7.44418e+03  2.32969e+04  1.00000e-02  1.00000e-02  0.2500
+   3  5.03877e+03  4.51136e+03  1.38557e+04  1.00000e-02  1.00000e-02  0.2500
+   4  1.26728e+03  2.63936e+03  8.11425e+03  1.00000e-03  1.00000e-03  1.0000
+   5  1.16441e+03  5.45688e+02  6.39642e+02  1.00000e-04  1.00000e-04  1.0000
+   6  1.06199e+03  7.32138e+02  4.72469e+02  1.00000e-04  1.00000e-04  0.2500
+   7  9.68118e+02  4.07567e+02  2.68229e+02  1.00000e-05  1.00000e-05  1.0000
+   8  9.41607e+02  2.51232e+02  8.62971e+01  1.00000e-06  1.00000e-06  1.0000
+   9  9.25936e+02  2.62158e+01  3.31571e+01  1.00000e-07  1.00000e-07  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  10  9.25801e+02  9.59331e-02  1.95406e+00  1.00000e-07  1.00000e-07  0.2500
+  11  9.25529e+02  5.83822e-02  7.64478e-01  1.00000e-08  1.00000e-08  1.0000
+  12  9.25466e+02  5.00552e-03  3.55337e-01  1.00000e-08  1.00000e-08  0.2500
+  13  9.25459e+02  3.49501e-03  7.03672e-02  1.00000e-09  1.00000e-09  1.0000
+*** SOLVE angle ang=0.8 ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  9.86177e+02  4.83389e+04  3.54555e+04  1.00000e-02  1.00000e-02  1.0000
+   1  9.24032e+02  1.90587e+01  3.03535e+02  1.00000e-02  1.00000e-02  0.2500
+   2  8.68276e+02  6.79689e+00  9.90112e+01  1.00000e-03  1.00000e-03  1.0000
+   3  8.49118e+02  2.49764e+00  3.10315e+01  1.00000e-04  1.00000e-04  1.0000
+   4  8.41985e+02  8.84778e-01  1.26841e+01  1.00000e-05  1.00000e-05  1.0000
+   5  8.40706e+02  2.69134e-01  2.21368e+01  1.00000e-05  1.00000e-05  0.0625
+   6  8.39929e+02  2.16516e-01  1.64995e+00  1.00000e-06  1.00000e-06  1.0000
+   7  8.39898e+02  3.02444e-02  6.17788e-01  1.00000e-07  1.00000e-07  1.0000
+   8  8.39747e+02  1.16736e-02  8.50814e-01  1.00000e-07  1.00000e-07  0.2500
+   9  8.39718e+02  3.26858e-03  1.55275e-01  1.00000e-07  1.00000e-07  0.2500
+*** SOLVE angle ang=1.1 ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  9.80416e+02  4.40433e+04  3.55830e+04  1.00000e-02  1.00000e-02  1.0000
+   1  9.59644e+02  8.92173e+00  1.60346e+02  1.00000e-03  1.00000e-03  1.0000
+   2  8.82196e+02  1.89244e+01  1.49381e+02  1.00000e-04  1.00000e-04  1.0000
+   3  8.79417e+02  3.55737e-01  5.11098e+01  1.00000e-04  1.00000e-04  0.0625
+   4  8.71331e+02  3.13016e-01  2.64936e+01  1.00000e-05  1.00000e-05  1.0000
+   5  8.68894e+02  2.74516e-01  1.27728e+01  1.00000e-05  1.00000e-05  0.2500
+   6  8.68360e+02  1.42768e-01  3.62022e+00  1.00000e-06  1.00000e-06  1.0000
+   7  8.67760e+02  2.09668e-02  3.24530e+00  1.00000e-06  1.00000e-06  0.2500
+   8  8.67611e+02  8.70691e-03  7.92649e-01  1.00000e-06  1.00000e-06  0.2500
+   9  8.67573e+02  4.54226e-03  2.21883e-01  1.00000e-07  1.00000e-07  1.0000
+*** SOLVE angle ang=1.4 ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  1.05473e+03  4.39249e+04  3.56210e+04  1.00000e-02  1.00000e-02  1.0000
+   1  1.01014e+03  5.14560e+00  7.57607e+01  1.00000e-03  1.00000e-03  1.0000
+   2  1.00759e+03  3.56324e+00  4.62272e+01  1.00000e-04  1.00000e-04  1.0000
+   3  9.71636e+02  6.06084e+00  6.71347e+01  1.00000e-05  1.00000e-05  1.0000
+   4  9.70136e+02  5.43691e-01  3.95185e+01  1.00000e-05  1.00000e-05  0.0625
+   5  9.69001e+02  4.68560e-01  3.11464e+00  1.00000e-06  1.00000e-06  1.0000
+   6  9.68722e+02  2.94381e-01  1.44101e+00  1.00000e-06  1.00000e-06  0.2500
+   7  9.68580e+02  1.72284e-01  4.74007e-01  1.00000e-07  1.00000e-07  1.0000
+   8  9.68559e+02  1.44138e-02  3.42985e-01  1.00000e-08  1.00000e-08  1.0000
+   9  9.68481e+02  5.59032e-02  4.29089e-01  1.00000e-08  1.00000e-08  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  10  9.68469e+02  3.61422e-02  1.00435e-01  1.00000e-09  1.00000e-09  1.0000
+  11  9.68446e+02  1.96887e-03  1.21834e-01  1.00000e-09  1.00000e-09  0.2500
+*** SOLVE angle ang=1.7 ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  1.13029e+03  4.40089e+04  3.57076e+04  1.00000e-02  1.00000e-02  1.0000
+   1  1.08420e+03  6.73109e+00  9.05236e+01  1.00000e-03  1.00000e-03  1.0000
+   2  1.06307e+03  6.21345e-01  3.41978e+01  1.00000e-04  1.00000e-04  1.0000
+   3  1.04957e+03  1.31566e+01  2.24009e+01  1.00000e-05  1.00000e-05  1.0000
+   4  1.04784e+03  2.35496e+00  3.04077e+00  1.00000e-06  1.00000e-06  1.0000
+   5  1.04768e+03  9.05602e-03  4.65518e-01  1.00000e-07  1.00000e-07  1.0000
+   6  1.04762e+03  5.88562e-03  3.19578e-01  1.00000e-07  1.00000e-07  0.2500
+   7  1.04760e+03  2.64314e-03  9.41757e-02  1.00000e-08  1.00000e-08  1.0000
+*** SOLVE angle ang=2.0 ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  1.19269e+03  4.42583e+04  3.58114e+04  1.00000e-02  1.00000e-02  1.0000
+   1  1.10743e+03  1.08362e+01  1.55474e+02  1.00000e-03  1.00000e-03  1.0000
+   2  1.08400e+03  4.69066e-01  3.87715e+01  1.00000e-04  1.00000e-04  1.0000
+   3  1.07636e+03  8.67376e-01  1.29745e+01  1.00000e-05  1.00000e-05  1.0000
+   4  1.07536e+03  6.32584e-02  1.80988e+00  1.00000e-06  1.00000e-06  1.0000
+   5  1.07522e+03  3.04736e-03  3.00118e-01  1.00000e-07  1.00000e-07  1.0000
+*** SOLVE angle ang=2.3 ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  1.23880e+03  4.47335e+04  3.58080e+04  1.00000e-02  1.00000e-02  1.0000
+   1  1.20233e+03  7.04175e+00  1.25628e+02  1.00000e-03  1.00000e-03  1.0000
+   2  1.16283e+03  2.82531e+00  7.77465e+01  1.00000e-04  1.00000e-04  1.0000
+   3  1.15714e+03  3.22961e+00  1.07531e+01  1.00000e-05  1.00000e-05  1.0000
+   4  1.15607e+03  1.68866e+00  5.31184e+00  1.00000e-05  1.00000e-05  0.2500
+   5  1.15413e+03  1.23522e+00  2.79588e+00  1.00000e-06  1.00000e-06  1.0000
+   6  1.15269e+03  6.66376e-01  3.06923e+00  1.00000e-07  1.00000e-07  1.0000
+   7  1.15141e+03  3.34135e+00  5.41555e+00  1.00000e-08  1.00000e-08  1.0000
+   8  1.14956e+03  4.77540e+00  9.80312e+00  1.00000e-08  1.00000e-08  0.2500
+   9  1.14833e+03  3.07698e+00  4.95770e+00  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  10  1.14456e+03  1.77100e+01  8.20574e+00  1.00000e-09  1.00000e-09  1.0000
+  11  1.14373e+03  8.03300e-01  5.63102e+00  1.00000e-09  1.00000e-09  1.0000
+  12  1.14223e+03  2.81170e+00  8.57089e+00  1.00000e-09  1.00000e-09  0.2500
+  13  1.14100e+03  1.83086e+00  3.49992e+00  1.00000e-09  1.00000e-09  1.0000
+  14  1.14062e+03  2.22522e+00  3.07185e+00  1.00000e-09  1.00000e-09  1.0000
+  15  1.13996e+03  1.68558e+00  4.02651e+00  1.00000e-09  1.00000e-09  0.2500
+  16  1.13953e+03  1.53030e+00  1.56818e+00  1.00000e-09  1.00000e-09  1.0000
+  17  1.13927e+03  1.05793e+00  1.36178e+00  1.00000e-09  1.00000e-09  0.2500
+  18  1.13902e+03  7.00739e-01  5.52514e-01  1.00000e-09  1.00000e-09  1.0000
+  19  1.13897e+03  2.61452e-02  3.56268e-01  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  20  1.13888e+03  2.15245e-01  4.81398e-01  1.00000e-09  1.00000e-09  0.2500
+  21  1.13881e+03  1.44764e-01  1.74551e-01  1.00000e-09  1.00000e-09  1.0000
+  22  1.13878e+03  9.03011e-03  1.48236e-01  1.00000e-09  1.00000e-09  1.0000
+  23  1.13876e+03  4.10359e-02  1.95205e-01  1.00000e-09  1.00000e-09  1.0000
+  24  1.13871e+03  6.86569e-02  2.71837e-01  1.00000e-09  1.00000e-09  0.2500
+  25  1.13868e+03  4.68758e-02  8.68469e-02  1.00000e-09  1.00000e-09  1.0000
+  26  1.13867e+03  9.15344e-03  9.37289e-02  1.00000e-09  1.00000e-09  1.0000
+  27  1.13866e+03  1.68979e-02  1.24819e-01  1.00000e-09  1.00000e-09  1.0000
+  28  1.13863e+03  4.35701e-02  1.76628e-01  1.00000e-09  1.00000e-09  0.2500
+  29  1.13861e+03  2.98670e-02  5.73110e-02  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  30  1.13859e+03  4.27101e-03  6.19620e-02  1.00000e-09  1.00000e-09  1.0000
+*** SOLVE angle ang=2.6 ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  1.36257e+03  4.55661e+04  3.57865e+04  1.00000e-02  1.00000e-02  1.0000
+   1  1.27820e+03  1.57337e+01  1.94907e+02  1.00000e-03  1.00000e-03  1.0000
+   2  1.24000e+03  1.48593e+01  8.57895e+01  1.00000e-04  1.00000e-04  1.0000
+   3  1.22852e+03  9.49176e+00  2.13620e+01  1.00000e-05  1.00000e-05  1.0000
+   4  1.22688e+03  4.03453e-01  2.48013e+00  1.00000e-06  1.00000e-06  1.0000
+   5  1.22593e+03  3.28034e-01  1.43169e+00  1.00000e-07  1.00000e-07  1.0000
+   6  1.22535e+03  9.36485e-02  9.34309e-01  1.00000e-08  1.00000e-08  1.0000
+   7  1.22498e+03  6.26888e-02  7.82975e-01  1.00000e-09  1.00000e-09  1.0000
+   8  1.22477e+03  2.23888e-02  8.08833e-01  1.00000e-09  1.00000e-09  1.0000
+   9  1.22456e+03  1.41739e-02  1.10781e+00  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  10  1.22440e+03  7.14891e-03  3.51722e-01  1.00000e-09  1.00000e-09  1.0000
+  11  1.22432e+03  4.53796e-03  4.24337e-01  1.00000e-09  1.00000e-09  1.0000
+*** SOLVE angle ang=2.9 ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  1.39244e+03  4.62641e+04  3.57985e+04  1.00000e-02  1.00000e-02  1.0000
+   1  1.32344e+03  1.04250e+01  1.28107e+02  1.00000e-03  1.00000e-03  1.0000
+   2  1.30840e+03  7.25977e-01  2.75282e+01  1.00000e-04  1.00000e-04  1.0000
+   3  1.30425e+03  6.57366e+00  1.01272e+01  1.00000e-05  1.00000e-05  1.0000
+   4  1.30209e+03  1.61881e+01  8.56747e+00  1.00000e-06  1.00000e-06  1.0000
+   5  1.30037e+03  8.39829e+00  9.41820e+00  1.00000e-06  1.00000e-06  0.2500
+   6  1.29932e+03  4.82012e+00  2.66736e+00  1.00000e-07  1.00000e-07  1.0000
+   7  1.29884e+03  4.54728e-01  2.64555e+00  1.00000e-07  1.00000e-07  0.2500
+   8  1.29841e+03  2.71738e-01  7.54048e-01  1.00000e-08  1.00000e-08  1.0000
+   9  1.29827e+03  5.91573e-02  9.79327e-01  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  10  1.29787e+03  2.36256e-02  2.30152e+00  1.00000e-09  1.00000e-09  0.2500
+  11  1.29758e+03  7.85858e-03  5.25525e-01  1.00000e-09  1.00000e-09  1.0000
+  12  1.29749e+03  1.22110e-02  8.89967e-01  1.00000e-09  1.00000e-09  1.0000
+  13  1.29709e+03  2.08733e-02  2.27469e+00  1.00000e-09  1.00000e-09  0.2500
+  14  1.29681e+03  5.07603e-03  5.13326e-01  1.00000e-09  1.00000e-09  1.0000
+  15  1.29670e+03  1.04330e-02  8.97240e-01  1.00000e-09  1.00000e-09  1.0000
+  16  1.29629e+03  2.32913e-02  2.30191e+00  1.00000e-09  1.00000e-09  0.2500
+  17  1.29598e+03  5.65008e-03  5.48800e-01  1.00000e-09  1.00000e-09  1.0000
+  18  1.29583e+03  1.12963e-02  9.46606e-01  1.00000e-09  1.00000e-09  1.0000
+  19  1.29541e+03  2.73094e-02  2.34820e+00  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  20  1.29503e+03  7.03751e-03  6.19973e-01  1.00000e-09  1.00000e-09  1.0000
+  21  1.29481e+03  1.28602e-02  1.03118e+00  1.00000e-09  1.00000e-09  1.0000
+  22  1.29437e+03  3.29756e-02  2.38931e+00  1.00000e-09  1.00000e-09  0.2500
+  23  1.29390e+03  9.37045e-03  7.27561e-01  1.00000e-09  1.00000e-09  1.0000
+  24  1.29357e+03  1.48308e-02  1.14513e+00  1.00000e-09  1.00000e-09  1.0000
+  25  1.29311e+03  4.00234e-02  2.38726e+00  1.00000e-09  1.00000e-09  0.2500
+  26  1.29252e+03  1.28768e-02  8.69397e-01  1.00000e-09  1.00000e-09  1.0000
+  27  1.29201e+03  1.67848e-02  1.27130e+00  1.00000e-09  1.00000e-09  1.0000
+  28  1.29161e+03  4.68375e-02  2.28732e+00  1.00000e-09  1.00000e-09  1.0000
+  29  1.29080e+03  5.67899e-02  4.24135e+00  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  30  1.29002e+03  1.40367e-02  1.32725e+00  1.00000e-09  1.00000e-09  1.0000
+  31  1.28923e+03  3.95064e-02  1.86635e+00  1.00000e-09  1.00000e-09  1.0000
+  32  1.28896e+03  3.60708e-02  2.77372e+00  1.00000e-09  1.00000e-09  1.0000
+  33  1.28809e+03  2.02847e-01  5.30249e+00  1.00000e-09  1.00000e-09  1.0000
+  34  1.28686e+03  7.69907e-02  6.31906e+00  1.00000e-09  1.00000e-09  0.2500
+  35  1.28574e+03  2.06762e-02  2.23274e+00  1.00000e-09  1.00000e-09  1.0000
+  36  1.28456e+03  8.51414e-02  2.63132e+00  1.00000e-09  1.00000e-09  1.0000
+  37  1.28368e+03  3.26165e-02  2.79801e+00  1.00000e-09  1.00000e-09  1.0000
+  38  1.28227e+03  1.90839e-01  3.70057e+00  1.00000e-09  1.00000e-09  1.0000
+  39  1.28130e+03  3.62117e-02  3.07011e+00  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  40  1.27984e+03  2.09389e-01  3.55146e+00  1.00000e-09  1.00000e-09  1.0000
+  41  1.27875e+03  2.78820e-02  2.59582e+00  1.00000e-09  1.00000e-09  1.0000
+  42  1.27753e+03  1.29838e-01  2.52524e+00  1.00000e-09  1.00000e-09  1.0000
+  43  1.27654e+03  1.84447e-02  1.92121e+00  1.00000e-09  1.00000e-09  1.0000
+  44  1.27563e+03  5.82996e-02  1.68984e+00  1.00000e-09  1.00000e-09  1.0000
+  45  1.27486e+03  1.16343e-02  1.40160e+00  1.00000e-09  1.00000e-09  1.0000
+  46  1.27422e+03  2.49092e-02  1.20855e+00  1.00000e-09  1.00000e-09  1.0000
+  47  1.27370e+03  8.32370e-03  1.05094e+00  1.00000e-09  1.00000e-09  1.0000
+  48  1.27329e+03  1.30775e-02  9.23877e-01  1.00000e-09  1.00000e-09  1.0000
+  49  1.27297e+03  7.23640e-03  8.39533e-01  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  50  1.27274e+03  9.17776e-03  8.00821e-01  1.00000e-09  1.00000e-09  1.0000
+  51  1.27255e+03  8.43742e-03  7.55942e-01  1.00000e-09  1.00000e-09  1.0000
+  52  1.27240e+03  7.79298e-03  7.20247e-01  1.00000e-09  1.00000e-09  1.0000
+  53  1.27231e+03  6.44873e-03  6.64070e-01  1.00000e-09  1.00000e-09  1.0000
+  54  1.27217e+03  7.16156e-03  7.11752e-01  1.00000e-09  1.00000e-09  0.2500
+  55  1.27211e+03  2.41864e-03  2.15028e-01  1.00000e-09  1.00000e-09  1.0000
+*** SOLVE angle ang=3.2 ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  1.43231e+03  4.59705e+04  3.57979e+04  1.00000e-02  1.00000e-02  1.0000
+   1  1.35784e+03  1.40413e+01  1.37411e+02  1.00000e-03  1.00000e-03  1.0000
+   2  1.35033e+03  1.04263e+00  1.29792e+01  1.00000e-04  1.00000e-04  1.0000
+   3  1.34856e+03  1.54569e-01  2.77191e+00  1.00000e-05  1.00000e-05  1.0000
+   4  1.34816e+03  3.62816e-02  6.36229e-01  1.00000e-06  1.00000e-06  1.0000
+   5  1.34808e+03  6.85704e-03  1.93976e-01  1.00000e-07  1.00000e-07  1.0000
+   6  1.34807e+03  2.36427e-03  1.43317e-01  1.00000e-08  1.00000e-08  1.0000
+*** SOLVE landing ***
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  1.84668e+05  4.52932e+06  6.54977e+05  1.00000e-09  1.00000e-09  0.2500
+   1  1.05011e+05  2.37447e+06  3.64156e+05  1.00000e-09  1.00000e-09  0.2500
+   2  6.03252e+04  1.27794e+06  2.04820e+05  1.00000e-09  1.00000e-09  0.2500
+   3  3.57063e+04  6.81083e+05  1.15517e+05  1.00000e-09  1.00000e-09  0.2500
+   4  2.20003e+04  4.01562e+05  6.63763e+04  1.00000e-09  1.00000e-09  0.2500
+   5  1.41204e+04  2.83951e+05  3.90526e+04  1.00000e-09  1.00000e-09  0.2500
+   6  9.46105e+03  2.15037e+05  2.33634e+04  1.00000e-09  1.00000e-09  0.2500
+   7  6.65944e+03  1.57627e+05  1.40975e+04  1.00000e-09  1.00000e-09  0.2500
+   8  4.96694e+03  1.12259e+05  8.53351e+03  1.00000e-09  1.00000e-09  0.2500
+   9  3.94445e+03  7.94337e+04  5.17914e+03  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  10  3.32289e+03  5.64066e+04  3.15932e+03  1.00000e-09  1.00000e-09  0.2500
+  11  2.69928e+03  3.96678e+04  1.93772e+03  1.00000e-09  1.00000e-09  1.0000
+  12  2.51541e+03  3.77134e+04  7.43669e+02  1.00000e-09  1.00000e-09  0.2500
+  13  2.42443e+03  1.81413e+04  3.83190e+02  1.00000e-09  1.00000e-09  0.2500
+  14  2.37680e+03  9.24884e+03  2.11484e+02  1.00000e-09  1.00000e-09  0.2500
+  15  2.34972e+03  5.18666e+03  1.27308e+02  1.00000e-09  1.00000e-09  0.2500
+  16  2.33309e+03  3.25052e+03  8.41618e+01  1.00000e-09  1.00000e-09  0.2500
+  17  2.32204e+03  2.31242e+03  6.15222e+01  1.00000e-09  1.00000e-09  0.2500
+  18  2.31401e+03  1.86109e+03  4.94580e+01  1.00000e-09  1.00000e-09  0.2500
+  19  2.30758e+03  1.63711e+03  4.27158e+01  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  20  2.30197e+03  1.50135e+03  3.84127e+01  1.00000e-09  1.00000e-09  0.2500
+  21  2.29682e+03  1.38152e+03  3.50026e+01  1.00000e-09  1.00000e-09  0.2500
+  22  2.29198e+03  1.24589e+03  3.17388e+01  1.00000e-09  1.00000e-09  0.2500
+  23  2.28743e+03  1.08762e+03  2.83537e+01  1.00000e-09  1.00000e-09  0.2500
+  24  2.28321e+03  9.13852e+02  2.48496e+01  1.00000e-09  1.00000e-09  0.2500
+  25  2.27937e+03  7.37621e+02  2.13555e+01  1.00000e-09  1.00000e-09  0.2500
+  26  2.27596e+03  5.72189e+02  1.80312e+01  1.00000e-09  1.00000e-09  0.2500
+  27  2.27299e+03  4.27607e+02  1.50109e+01  1.00000e-09  1.00000e-09  0.2500
+  28  2.27045e+03  3.09323e+02  1.23775e+01  1.00000e-09  1.00000e-09  0.2500
+  29  2.26830e+03  2.18334e+02  1.01589e+01  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  30  2.26650e+03  1.52269e+02  8.33871e+00  1.00000e-09  1.00000e-09  0.2500
+  31  2.26500e+03  1.06800e+02  6.87189e+00  1.00000e-09  1.00000e-09  0.2500
+  32  2.26375e+03  7.69381e+01  5.70006e+00  1.00000e-09  1.00000e-09  0.2500
+  33  2.26270e+03  5.79822e+01  4.76375e+00  1.00000e-09  1.00000e-09  0.2500
+  34  2.26182e+03  4.60574e+01  4.00987e+00  1.00000e-09  1.00000e-09  0.2500
+  35  2.26108e+03  3.82997e+01  3.39521e+00  1.00000e-09  1.00000e-09  0.2500
+  36  2.26045e+03  3.27994e+01  2.88684e+00  1.00000e-09  1.00000e-09  0.2500
+  37  2.25991e+03  2.84179e+01  2.46089e+00  1.00000e-09  1.00000e-09  0.2500
+  38  2.25945e+03  2.45662e+01  2.10050e+00  1.00000e-09  1.00000e-09  0.2500
+  39  2.25924e+03  2.10027e+01  1.79379e+00  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  40  2.25758e+03  2.29001e+02  3.25985e+00  1.00000e-09  1.00000e-09  1.0000
+  41  2.25700e+03  4.28066e+01  9.06112e-01  1.00000e-09  1.00000e-09  1.0000
+  42  2.25674e+03  5.68962e+00  3.25002e-01  1.00000e-09  1.00000e-09  1.0000
+  43  2.25658e+03  1.12728e+00  1.85603e-01  1.00000e-09  1.00000e-09  1.0000
+  44  2.25647e+03  9.88789e-02  1.24444e-01  1.00000e-09  1.00000e-09  1.0000
+  45  2.25638e+03  8.92078e-02  9.40431e-02  1.00000e-09  1.00000e-09  1.0000
+  46  2.25632e+03  1.58846e-02  7.60157e-02  1.00000e-09  1.00000e-09  1.0000
+  47  2.25627e+03  4.16625e-02  7.12359e-02  1.00000e-09  1.00000e-09  1.0000
+  48  2.25624e+03  2.87990e-02  8.59711e-02  1.00000e-09  1.00000e-09  1.0000
+  49  2.25622e+03  5.62700e-02  1.41739e-01  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  50  2.25619e+03  2.81021e-02  4.75975e-02  1.00000e-09  1.00000e-09  1.0000
+  51  2.25617e+03  1.20298e-02  6.17378e-02  1.00000e-09  1.00000e-09  1.0000
+  52  2.25615e+03  2.05734e-02  1.07931e-01  1.00000e-09  1.00000e-09  0.2500
+  53  2.25613e+03  1.06951e-02  3.33533e-02  1.00000e-09  1.00000e-09  1.0000
+  54  2.25612e+03  5.43033e-03  4.59062e-02  1.00000e-09  1.00000e-09  1.0000
+  55  2.25610e+03  8.60364e-03  8.36147e-02  1.00000e-09  1.00000e-09  0.2500
+  56  2.25609e+03  4.69192e-03  2.42915e-02  1.00000e-09  1.00000e-09  1.0000
+  57  2.25608e+03  2.52618e-03  3.49237e-02  1.00000e-09  1.00000e-09  1.0000
+  58  2.25607e+03  3.99523e-03  6.54989e-02  1.00000e-09  1.00000e-09  0.2500
+  59  2.25606e+03  2.28821e-03  1.82008e-02  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  60  2.25606e+03  1.23121e-03  2.70150e-02  1.00000e-09  1.00000e-09  1.0000
+  61  2.25605e+03  2.04264e-03  5.17138e-02  1.00000e-09  1.00000e-09  0.2500
+  62  2.25604e+03  1.22165e-03  1.39435e-02  1.00000e-09  1.00000e-09  1.0000
+  63  2.25604e+03  6.45628e-04  2.11640e-02  1.00000e-09  1.00000e-09  1.0000
+  64  2.25603e+03  1.14962e-03  4.10693e-02  1.00000e-09  1.00000e-09  0.2500
+  65  2.25603e+03  7.09128e-04  1.08719e-02  1.00000e-09  1.00000e-09  1.0000
+  66  2.25602e+03  3.74895e-04  1.67432e-02  1.00000e-09  1.00000e-09  1.0000
+  67  2.25602e+03  7.09796e-04  3.27608e-02  1.00000e-09  1.00000e-09  0.2500
+  68  2.25601e+03  4.44374e-04  8.59549e-03  1.00000e-09  1.00000e-09  1.0000
+  69  2.25601e+03  2.44137e-04  1.33462e-02  1.00000e-09  1.00000e-09  1.0000
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  70  2.25601e+03  4.74894e-04  2.62220e-02  1.00000e-09  1.00000e-09  0.2500
+  71  2.25600e+03  2.97395e-04  6.86948e-03  1.00000e-09  1.00000e-09  1.0000
+  72  2.25600e+03  1.75791e-04  1.07003e-02  1.00000e-09  1.00000e-09  1.0000
+  73  2.25600e+03  3.37961e-04  2.10429e-02  1.00000e-09  1.00000e-09  0.2500
+  74  2.25599e+03  2.09721e-04  5.53573e-03  1.00000e-09  1.00000e-09  1.0000
+  75  2.25599e+03  1.35694e-04  8.61728e-03  1.00000e-09  1.00000e-09  1.0000
+  76  2.25599e+03  2.51041e-04  1.69209e-02  1.00000e-09  1.00000e-09  0.2500
+  77  2.25599e+03  1.53794e-04  4.48917e-03  1.00000e-09  1.00000e-09  1.0000
+  78  2.25599e+03  1.08959e-04  6.96372e-03  1.00000e-09  1.00000e-09  1.0000
+  79  2.25598e+03  1.91745e-04  1.36280e-02  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  80  2.25598e+03  1.16014e-04  3.65791e-03  1.00000e-09  1.00000e-09  1.0000
+  81  2.25598e+03  8.91583e-05  5.64253e-03  1.00000e-09  1.00000e-09  1.0000
diff --git a/examples/log/talos_arm.log b/examples/log/talos_arm.log
new file mode 100644
index 0000000000000000000000000000000000000000..95ed434f44fc50aa703a4e1552663acc959dc39c
--- /dev/null
+++ b/examples/log/talos_arm.log
@@ -0,0 +1,30 @@
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+   0  3.33784e-01  2.79313e-08  2.46733e-01  1.00000e-09  1.00000e-09  1.0000
+   1  2.76830e-01  4.07640e-08  2.51704e-01  1.00000e-09  1.00000e-09  0.2500
+   2  2.41482e-01  2.71532e-08  1.67983e-01  1.00000e-09  1.00000e-09  0.2500
+   3  2.14120e-01  1.92516e-08  1.23269e-01  1.00000e-09  1.00000e-09  0.2500
+   4  1.92160e-01  1.36544e-08  9.38145e-02  1.00000e-09  1.00000e-09  0.2500
+   5  1.73479e-01  1.04796e-08  7.84493e-02  1.00000e-09  1.00000e-09  0.2500
+   6  1.56354e-01  8.92818e-09  7.20415e-02  1.00000e-09  1.00000e-09  0.2500
+   7  1.41779e-01  7.25090e-09  6.08715e-02  1.00000e-09  1.00000e-09  0.2500
+   8  1.32226e-01  4.76111e-09  4.04640e-02  1.00000e-09  1.00000e-09  0.2500
+   9  1.26362e-01  2.93583e-09  2.49384e-02  1.00000e-09  1.00000e-09  0.2500
+iter 	 cost 	      theta 	    gamma 	  muV 	      muLM 	 alpha
+  10  1.22590e-01  1.88209e-09  1.59846e-02  1.00000e-09  1.00000e-09  0.2500
+  11  1.19132e-01  1.28816e-09  1.10026e-02  1.00000e-09  1.00000e-09  1.0000
+  12  1.14275e-01  2.42405e-09  1.79049e-02  1.00000e-09  1.00000e-09  1.0000
+  13  1.11334e-01  5.15956e-09  4.73770e-02  1.00000e-09  1.00000e-09  0.2500
+  14  9.90761e-02  6.13525e-09  4.42008e-02  1.00000e-09  1.00000e-09  0.2500
+  15  9.39628e-02  3.72680e-09  3.08742e-02  1.00000e-09  1.00000e-09  0.2500
+  16  8.91847e-02  3.36729e-09  2.71581e-02  1.00000e-09  1.00000e-09  0.2500
+  17  8.39980e-02  2.89527e-09  2.51096e-02  1.00000e-09  1.00000e-09  0.2500
+  18  8.09470e-02  1.67397e-09  1.47015e-02  1.00000e-09  1.00000e-09  0.2500
+  19  7.98693e-02  6.09845e-10  5.32391e-03  1.00000e-09  1.00000e-09  0.2500
+
+The reached pose by the wrist is
+  R =
+    0.999782   0.00102056    0.0208659
+-0.000942107     0.999992  -0.00376952
+  -0.0208696   0.00374904     0.999775
+  p = 0.00244635  0.0243952   0.381054
+