Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:42:22 2013 Optimize a model with 979 rows, 79299 columns and 158509 nonzeros Presolve time: 0.13s Presolved: 979 rows, 79299 columns, 158509 nonzeros Variable types: 79210 continuous, 89 integer (89 binary) Root relaxation: objective 9.380186e+04, 2472 iterations, 0.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 93801.8631 0 9 - 93801.8631 - - 0s H 0 0 99676.000000 93801.8631 5.89% - 0s 0 0 94396.4025 0 8 99676.0000 94396.4025 5.30% - 0s 0 0 94456.5492 0 7 99676.0000 94456.5492 5.24% - 0s 0 0 94471.9333 0 7 99676.0000 94471.9333 5.22% - 1s 0 0 94472.4722 0 7 99676.0000 94472.4722 5.22% - 1s 0 0 94472.4722 0 7 99676.0000 94472.4722 5.22% - 1s H 0 0 95184.000000 94472.4722 0.75% - 1s 0 0 94472.4722 0 9 95184.0000 94472.4722 0.75% - 2s 0 0 94472.4722 0 8 95184.0000 94472.4722 0.75% - 2s 0 0 94472.4722 0 7 95184.0000 94472.4722 0.75% - 2s 0 0 94472.4722 0 7 95184.0000 94472.4722 0.75% - 2s 0 0 94472.4722 0 7 95184.0000 94472.4722 0.75% - 2s 0 0 94472.4722 0 7 95184.0000 94472.4722 0.75% - 2s 0 0 94472.4722 0 7 95184.0000 94472.4722 0.75% - 2s 0 0 94472.4722 0 7 95184.0000 94472.4722 0.75% - 2s 0 0 94516.8354 0 6 95184.0000 94516.8354 0.70% - 3s 0 2 94533.8485 0 6 95184.0000 94533.8485 0.68% - 3s H 9 7 94767.000000 94574.8584 0.20% 60.4 3s * 12 6 10 94745.000000 94574.8584 0.18% 53.6 3s Cutting planes: Implied bound: 173 Flow cover: 7 Explored 22 nodes (6337 simplex iterations) in 3.78 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.474500000000e+04, best bound 9.474500000000e+04, gap 0.0%