Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:15:48 2012 Optimize a model with 4482 rows, 2970 columns and 16200 nonzeros Presolve removed 379 rows and 54 columns Presolve time: 0.10s Presolved: 4103 rows, 2916 columns, 15228 nonzeros Variable types: 0 continuous, 2916 integer (2916 binary) Found heuristic solution: objective 27.0000000 Root relaxation: objective 3.000000e+00, 4108 iterations, 0.19 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% - 0s Explored 0 nodes (5910 simplex iterations) in 0.40 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%