Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:21 2013 Optimize a model with 8176 rows, 7896 columns and 31416 nonzeros Presolve removed 28 rows and 0 columns Presolve time: 0.04s Presolved: 8148 rows, 7896 columns, 31388 nonzeros Variable types: 7868 continuous, 28 integer (28 binary) Root relaxation: objective 2.507562e+04, 1001 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 25075.6218 0 21 - 25075.6218 - - 0s H 0 0 28280.000000 25075.6218 11.3% - 0s 0 0 27050.2500 0 1 28280.0000 27050.2500 4.35% - 0s H 0 0 27429.714286 27050.2500 1.38% - 0s H 0 0 27285.000000 27050.2500 0.86% - 0s H 0 0 27062.000000 27050.2500 0.04% - 0s Cutting planes: Gomory: 1 Implied bound: 18 Explored 0 nodes (1357 simplex iterations) in 0.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.706200000000e+04, best bound 2.706200000000e+04, gap 0.0%