Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:50:29 2013 Optimize a model with 891 rows, 65691 columns and 131301 nonzeros Presolve time: 0.10s Presolved: 891 rows, 65691 columns, 131301 nonzeros Variable types: 65610 continuous, 81 integer (81 binary) Root relaxation: objective 9.947819e+04, 2667 iterations, 0.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 99478.1861 0 9 - 99478.1861 - - 0s H 0 0 103767.00000 99478.1861 4.13% - 0s H 0 0 101669.00000 99478.1861 2.15% - 0s 0 0 100336.057 0 7 101669.000 100336.057 1.31% - 0s 0 0 100386.417 0 5 101669.000 100386.417 1.26% - 0s 0 0 100393.477 0 6 101669.000 100393.477 1.25% - 0s 0 0 100402.593 0 6 101669.000 100402.593 1.25% - 1s 0 0 100403.029 0 4 101669.000 100403.029 1.25% - 1s 0 0 100403.118 0 4 101669.000 100403.118 1.25% - 1s 0 0 100403.118 0 9 101669.000 100403.118 1.25% - 1s 0 0 100403.118 0 7 101669.000 100403.118 1.25% - 2s 0 0 100403.118 0 5 101669.000 100403.118 1.25% - 2s 0 0 100403.118 0 6 101669.000 100403.118 1.25% - 2s 0 0 100403.118 0 6 101669.000 100403.118 1.25% - 2s 0 0 100403.118 0 4 101669.000 100403.118 1.25% - 2s 0 0 100403.118 0 4 101669.000 100403.118 1.25% - 2s 0 2 100408.183 0 4 101669.000 100408.183 1.24% - 3s H 7 7 101181.82323 100646.639 0.53% 135 3s H 11 10 100737.56338 100646.639 0.09% 94.5 3s H 12 9 100706.00000 100646.639 0.06% 88.3 3s * 13 3 10 100682.00000 100646.639 0.04% 83.2 3s Cutting planes: Implied bound: 139 Flow cover: 7 Explored 16 nodes (8298 simplex iterations) in 3.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.006820000000e+05, best bound 1.006783123583e+05, gap 0.0037%