Gurobi 5.0.1 (linux64) logging started Tue Dec 11 04:09:27 2012 Optimize a model with 11910 rows, 11880 columns and 45300 nonzeros Presolve removed 681 rows and 120 columns Presolve time: 0.07s Presolved: 11229 rows, 11760 columns, 43855 nonzeros Variable types: 11059 continuous, 701 integer (701 binary) Root relaxation: objective 2.338277e+05, 1046 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 233827.658 0 19 - 233827.658 - - 0s H 0 0 235731.00000 233827.658 0.81% - 0s 0 0 233847.982 0 31 235731.000 233847.982 0.80% - 0s 0 0 233885.826 0 37 235731.000 233885.826 0.78% - 0s 0 0 233889.148 0 38 235731.000 233889.148 0.78% - 0s 0 0 233892.286 0 40 235731.000 233892.286 0.78% - 0s 0 0 233893.292 0 44 235731.000 233893.292 0.78% - 0s 0 0 233894.733 0 45 235731.000 233894.733 0.78% - 0s 0 0 233897.094 0 46 235731.000 233897.094 0.78% - 0s 0 0 233897.352 0 46 235731.000 233897.352 0.78% - 0s H 0 0 234330.00000 233897.352 0.18% - 0s 0 2 233900.925 0 46 234330.000 233900.925 0.18% - 0s H 73 52 234325.00000 233946.679 0.16% 4.8 1s * 74 51 71 234305.00000 233946.679 0.15% 4.8 1s H 189 92 234166.00000 233957.087 0.09% 4.7 1s * 282 124 31 234122.00000 233975.858 0.06% 4.7 1s 1426 243 234106.618 40 6 234122.000 234064.192 0.02% 4.6 5s * 1594 255 52 234119.00000 234069.831 0.02% 4.6 5s * 1914 48 37 234092.00000 234086.570 0.00% 4.5 5s Cutting planes: Gomory: 3 Flow cover: 19 Explored 1915 nodes (9792 simplex iterations) in 5.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.340920000000e+05, best bound 2.340865699421e+05, gap 0.0023%