Gurobi 5.0.1 (linux64) logging started Tue Apr 23 22:02:13 2013 Optimize a model with 2650 rows, 2600 columns and 10100 nonzeros Presolve removed 100 rows and 1 columns Presolve time: 0.01s Presolved: 2550 rows, 2599 columns, 9950 nonzeros Variable types: 2550 continuous, 49 integer (49 binary) Root relaxation: objective 8.940215e+05, 321 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 894021.451 0 6 - 894021.451 - - 0s H 0 0 907150.12500 894021.451 1.45% - 0s H 0 0 895857.82500 894021.451 0.20% - 0s H 0 0 895302.32500 894021.451 0.14% - 0s 0 0 894520.628 0 3 895302.325 894520.628 0.09% - 0s 0 0 894520.628 0 5 895302.325 894520.628 0.09% - 0s 0 0 895009.802 0 3 895302.325 895009.802 0.03% - 0s 0 0 895038.168 0 4 895302.325 895038.168 0.03% - 0s 0 0 895289.587 0 1 895302.325 895289.587 0.00% - 0s Cutting planes: Gomory: 4 Explored 0 nodes (406 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.953023250000e+05, best bound 8.952895874686e+05, gap 0.0014%