Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:57 2013 Optimize a model with 1070 rows, 3260 columns and 8505 nonzeros Presolve removed 10 rows and 15 columns Presolve time: 0.16s Presolved: 1060 rows, 3245 columns, 6490 nonzeros Variable types: 2250 continuous, 995 integer (995 binary) Root relaxation: objective 1.291780e+04, 55 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 12917.7960 0 1 - 12917.7960 - - 0s 0 0 12918.2558 0 2 - 12918.2558 - - 0s 0 0 12918.2558 0 2 - 12918.2558 - - 0s H 0 0 13322.908629 12918.2558 3.04% - 0s 0 2 12920.2486 0 2 13322.9086 12920.2486 3.02% - 0s * 23 3 23 12965.578173 12965.5782 0.0% 1.5 0s Cutting planes: Gomory: 1 Flow cover: 1 Explored 24 nodes (303 simplex iterations) in 0.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.296557817281e+04, best bound 1.296557817281e+04, gap 0.0%