work/work2
Iteration 1: cost 574.12596depth 0
work/work3
Iteration 2: cost 1.22267E3depth 0.5
work/work4
Iteration 3: cost 140.58682depth -0.73363
work/work5
Iteration 4: cost 134.80449depth -0.8003
work/work6
Iteration 5: cost 134.21315depth -0.82492