Gurobi 5.0.1 (linux64) logging started Wed Apr 24 10:31:24 2013 Optimize a model with 1210 rows, 121110 columns and 242110 nonzeros Presolve time: 0.23s Presolved: 1210 rows, 121110 columns, 242110 nonzeros Variable types: 121000 continuous, 110 integer (110 binary) Root relaxation: objective 1.704745e+05, 4944 iterations, 0.27 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 170474.519 0 5 - 170474.519 - - 0s H 0 0 178006.00000 170474.519 4.23% - 0s H 0 0 176553.00000 170474.519 3.44% - 0s H 0 0 171586.00000 170474.519 0.65% - 1s 0 0 170570.112 0 3 171586.000 170570.112 0.59% - 1s 0 0 170570.112 0 5 171586.000 170570.112 0.59% - 1s 0 0 170570.112 0 3 171586.000 170570.112 0.59% - 2s 0 0 170577.112 0 3 171586.000 170577.112 0.59% - 2s 0 0 170581.279 0 3 171586.000 170581.279 0.59% - 2s 0 0 170581.279 0 3 171586.000 170581.279 0.59% - 2s 0 0 170581.279 0 3 171586.000 170581.279 0.59% - 2s 0 0 170581.279 0 3 171586.000 170581.279 0.59% - 2s 0 0 170581.279 0 3 171586.000 170581.279 0.59% - 2s 0 2 170591.460 0 3 171586.000 170591.460 0.58% - 3s H 3 3 171118.00000 170739.224 0.22% 135 3s H 4 3 170944.00000 170739.224 0.12% 108 3s H 7 2 170928.00000 170739.224 0.11% 70.3 3s * 8 2 8 170821.00000 170739.224 0.05% 69.6 3s Cutting planes: Implied bound: 48 Flow cover: 1 Explored 11 nodes (9716 simplex iterations) in 3.78 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.708210000000e+05, best bound 1.708210000000e+05, gap 0.0%