Gurobi 5.0.1 (linux64) logging started Sun Dec 9 21:58:22 2012 Optimize a model with 1110 rows, 1080 columns and 3576 nonzeros Presolve removed 89 rows and 66 columns Presolve time: 0.02s Presolved: 1021 rows, 1014 columns, 3387 nonzeros Variable types: 677 continuous, 337 integer (337 binary) Root relaxation: objective 9.996013e+04, 520 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 99960.1288 0 172 - 99960.1288 - - 0s H 0 0 157399.00000 99960.1288 36.5% - 0s 0 0 119467.055 0 51 157399.000 119467.055 24.1% - 0s 0 0 120508.373 0 62 157399.000 120508.373 23.4% - 0s 0 0 120769.117 0 43 157399.000 120769.117 23.3% - 0s 0 0 120820.308 0 30 157399.000 120820.308 23.2% - 0s 0 0 120872.983 0 32 157399.000 120872.983 23.2% - 0s 0 2 120885.169 0 32 157399.000 120885.169 23.2% - 0s H 27 27 125143.00000 120891.675 3.40% 5.8 0s H 54 52 122089.00000 120891.675 0.98% 4.9 0s * 207 147 101 121918.00000 120924.985 0.81% 3.6 0s * 481 340 53 121893.00000 121028.553 0.71% 4.1 0s H 600 213 121479.00000 121065.716 0.34% 4.2 0s * 826 228 72 121458.00000 121103.994 0.29% 5.6 0s * 913 191 53 121365.00000 121121.939 0.20% 5.4 0s Cutting planes: Gomory: 35 Cover: 2 Clique: 1 Flow cover: 66 Flow path: 49 Zero half: 1 Explored 2435 nodes (11790 simplex iterations) in 1.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.213650000000e+05, best bound 1.213532871251e+05, gap 0.0097%