Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:47:49 2013 Optimize a model with 55648 rows, 54908 columns and 219188 nonzeros Presolve removed 74 rows and 0 columns Presolve time: 0.25s Presolved: 55574 rows, 54908 columns, 219114 nonzeros Variable types: 54834 continuous, 74 integer (74 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7269 6.4916366e+04 6.174433e+02 0.000000e+00 5s 7372 6.4921342e+04 0.000000e+00 0.000000e+00 5s Root relaxation: objective 6.492134e+04, 7372 iterations, 5.40 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 64921.3421 0 63 - 64921.3421 - - 5s H 0 0 120244.00000 64921.3421 46.0% - 12s 0 0 80129.0145 0 15 120244.000 80129.0145 33.4% - 21s H 0 0 110948.51815 80129.0145 27.8% - 21s H 0 0 95437.000000 80129.0145 16.0% - 22s H 0 0 94329.000000 80129.0145 15.1% - 22s 0 0 83638.0196 0 5 94329.0000 83638.0196 11.3% - 23s H 0 0 89723.821080 83638.0196 6.78% - 23s H 0 0 88322.000000 83638.0196 5.30% - 24s 0 0 84057.3326 0 3 88322.0000 84057.3326 4.83% - 24s H 0 0 85652.019892 84057.3326 1.86% - 24s H 0 0 85196.000000 84057.3326 1.34% - 24s H 0 0 84426.000000 84057.3326 0.44% - 25s 0 0 84081.8354 0 3 84426.0000 84081.8354 0.41% - 25s 0 0 84084.9547 0 2 84426.0000 84084.9547 0.40% - 25s H 0 0 84230.000000 84084.9547 0.17% - 25s 0 1 84185.5205 0 2 84230.0000 84185.5205 0.05% - 26s * 2 0 2 84212.000000 84212.0000 0.0% 292 26s Cutting planes: Implied bound: 74 Explored 3 nodes (17254 simplex iterations) in 26.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.421200000000e+04, best bound 8.421200000000e+04, gap 0.0%