Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:21:13 2012 Optimize a model with 6655 rows, 4160 columns and 23806 nonzeros Presolve removed 580 rows and 130 columns Presolve time: 0.24s Presolved: 6075 rows, 4030 columns, 22080 nonzeros Variable types: 0 continuous, 4030 integer (4030 binary) Found heuristic solution: objective 64.0000000 Root relaxation: objective 3.000000e+00, 3884 iterations, 0.27 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% - 1s Explored 0 nodes (13707 simplex iterations) in 1.47 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%