Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:16:37 2013 Optimize a model with 900 rows, 25300 columns and 50850 nonzeros Presolve removed 200 rows and 150 columns Presolve time: 0.09s Presolved: 700 rows, 25150 columns, 50450 nonzeros Variable types: 25100 continuous, 50 integer (50 binary) Root relaxation: objective 1.626233e+05, 1221 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 162623.326 0 5 - 162623.326 - - 0s H 0 0 173948.67734 162623.326 6.51% - 0s H 0 0 163774.06075 162623.326 0.70% - 0s 0 0 162635.579 0 4 163774.061 162635.579 0.70% - 0s H 0 0 163537.80026 162635.579 0.55% - 0s 0 2 162642.425 0 4 163537.800 162642.425 0.55% - 0s H 6 4 162934.17765 162844.892 0.05% 34.7 0s * 9 3 8 162910.04610 162851.016 0.04% 25.9 0s * 10 2 7 162887.15892 162851.016 0.02% 24.9 0s Explored 13 nodes (1499 simplex iterations) in 0.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.628871589165e+05, best bound 1.628871589165e+05, gap 0.0%