Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:37:22 2012 Optimize a model with 8945 rows, 5112 columns and 31593 nonzeros Presolve removed 1138 rows and 2 columns Presolve time: 0.33s Presolved: 7878 rows, 5110 columns, 33716 nonzeros Variable types: 0 continuous, 5110 integer (5110 binary) Found heuristic solution: objective 71.0000000 Root relaxation: objective 3.000000e+00, 5889 iterations, 0.65 seconds Total elapsed time = 5.13s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 5s Explored 0 nodes (31299 simplex iterations) in 5.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%