Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:39:09 2013 Optimize a model with 880 rows, 64080 columns and 128080 nonzeros Presolve time: 0.10s Presolved: 880 rows, 64080 columns, 128080 nonzeros Variable types: 64000 continuous, 80 integer (80 binary) Root relaxation: objective 9.379253e+04, 2708 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 93792.5274 0 4 - 93792.5274 - - 0s H 0 0 96431.000000 93792.5274 2.74% - 0s H 0 0 94661.000000 93792.5274 0.92% - 0s 0 0 93835.5182 0 3 94661.0000 93835.5182 0.87% - 0s 0 0 93844.2912 0 3 94661.0000 93844.2912 0.86% - 0s 0 0 93848.7677 0 3 94661.0000 93848.7677 0.86% - 0s 0 0 93849.2463 0 3 94661.0000 93849.2463 0.86% - 0s 0 0 93849.2463 0 3 94661.0000 93849.2463 0.86% - 0s 0 0 93849.2463 0 3 94661.0000 93849.2463 0.86% - 0s 0 0 93849.2463 0 3 94661.0000 93849.2463 0.86% - 1s 0 0 93849.2463 0 3 94661.0000 93849.2463 0.86% - 1s 0 0 93849.2463 0 4 94661.0000 93849.2463 0.86% - 1s 0 0 93849.2463 0 3 94661.0000 93849.2463 0.86% - 1s 0 0 93849.2463 0 3 94661.0000 93849.2463 0.86% - 1s 0 0 93849.2463 0 3 94661.0000 93849.2463 0.86% - 1s 0 0 93849.2463 0 3 94661.0000 93849.2463 0.86% - 2s 0 0 93849.2463 0 3 94661.0000 93849.2463 0.86% - 2s 0 0 93849.2463 0 3 94661.0000 93849.2463 0.86% - 2s 0 0 93849.2463 0 3 94661.0000 93849.2463 0.86% - 2s 0 0 93849.2463 0 3 94661.0000 93849.2463 0.86% - 2s 0 2 93874.8044 0 3 94661.0000 93874.8044 0.83% - 2s H 10 8 94497.000000 94019.6367 0.51% 91.5 3s * 13 8 11 94437.000000 94019.6367 0.44% 87.4 3s * 24 13 9 94421.000000 94025.5544 0.42% 77.7 3s * 37 19 10 94373.000000 94057.4499 0.33% 64.0 3s * 51 13 5 94354.000000 94148.6750 0.22% 65.6 3s Cutting planes: Implied bound: 81 Flow cover: 7 Explored 79 nodes (10318 simplex iterations) in 4.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.435400000000e+04, best bound 9.434673564593e+04, gap 0.0077%