Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:02:17 2013 Optimize a model with 836 rows, 57836 columns and 115596 nonzeros Presolve time: 0.08s Presolved: 836 rows, 57836 columns, 115596 nonzeros Variable types: 57760 continuous, 76 integer (76 binary) Root relaxation: objective 8.196240e+04, 2050 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 81962.3958 0 8 - 81962.3958 - - 0s H 0 0 89404.000000 81962.3958 8.32% - 0s H 0 0 82918.000000 81962.3958 1.15% - 0s 0 0 82125.5206 0 5 82918.0000 82125.5206 0.96% - 0s 0 0 82125.5206 0 8 82918.0000 82125.5206 0.96% - 0s 0 0 82126.9344 0 6 82918.0000 82126.9344 0.95% - 0s 0 0 82160.4801 0 5 82918.0000 82160.4801 0.91% - 0s 0 0 82168.9674 0 5 82918.0000 82168.9674 0.90% - 0s 0 0 82176.7972 0 5 82918.0000 82176.7972 0.89% - 1s 0 0 82182.2628 0 5 82918.0000 82182.2628 0.89% - 1s 0 0 82183.8535 0 5 82918.0000 82183.8535 0.89% - 1s 0 0 82186.2206 0 4 82918.0000 82186.2206 0.88% - 1s 0 0 82187.8737 0 4 82918.0000 82187.8737 0.88% - 1s 0 0 82189.7963 0 4 82918.0000 82189.7963 0.88% - 1s 0 0 82189.7963 0 4 82918.0000 82189.7963 0.88% - 1s 0 0 82189.7963 0 4 82918.0000 82189.7963 0.88% - 1s 0 0 82190.8843 0 2 82918.0000 82190.8843 0.88% - 1s 0 0 82190.8843 0 2 82918.0000 82190.8843 0.88% - 1s 0 2 82199.3550 0 2 82918.0000 82199.3550 0.87% - 1s H 29 3 82624.000000 82518.3600 0.13% 70.6 2s * 33 5 7 82604.000000 82566.1177 0.05% 67.0 2s Cutting planes: Implied bound: 154 Flow cover: 8 Explored 39 nodes (6392 simplex iterations) in 2.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.260400000000e+04, best bound 8.260400000000e+04, gap 0.0%