Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:44:54 2013 Optimize a model with 1045 rows, 90345 columns and 180595 nonzeros Presolve time: 0.15s Presolved: 1045 rows, 90345 columns, 180595 nonzeros Variable types: 90250 continuous, 95 integer (95 binary) Root relaxation: objective 1.253779e+05, 4205 iterations, 0.17 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 125377.948 0 6 - 125377.948 - - 0s H 0 0 129016.00000 125377.948 2.82% - 0s 0 0 125643.105 0 4 129016.000 125643.105 2.61% - 0s H 0 0 126709.00000 125643.105 0.84% - 1s 0 0 125690.021 0 6 126709.000 125690.021 0.80% - 1s 0 0 125690.021 0 6 126709.000 125690.021 0.80% - 1s 0 0 125690.021 0 4 126709.000 125690.021 0.80% - 1s 0 0 125690.021 0 6 126709.000 125690.021 0.80% - 1s 0 0 125708.974 0 5 126709.000 125708.974 0.79% - 2s 0 0 125712.945 0 4 126709.000 125712.945 0.79% - 2s 0 0 125714.351 0 3 126709.000 125714.351 0.78% - 2s 0 0 125714.351 0 3 126709.000 125714.351 0.78% - 2s 0 2 125738.206 0 3 126709.000 125738.206 0.77% - 2s * 13 9 11 126349.00000 125860.602 0.39% 134 3s H 28 10 126294.00000 126072.446 0.18% 119 4s * 29 6 9 126234.00000 126072.446 0.13% 116 4s Cutting planes: Implied bound: 157 Flow cover: 7 Explored 39 nodes (12112 simplex iterations) in 4.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.262340000000e+05, best bound 1.262340000000e+05, gap 0.0%