Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:04:19 2012 Optimize a model with 8879 rows, 5550 columns and 31818 nonzeros Presolve removed 744 rows and 150 columns Presolve time: 0.36s Presolved: 8135 rows, 5400 columns, 29748 nonzeros Variable types: 0 continuous, 5400 integer (5400 binary) Found heuristic solution: objective 74.0000000 Root relaxation: objective 3.000000e+00, 6193 iterations, 0.62 seconds 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% - 3s Explored 0 nodes (19591 simplex iterations) in 3.36 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%