Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:14:29 2012 Optimize a model with 3400 rows, 2550 columns and 12550 nonzeros Presolve removed 303 rows and 150 columns Presolve time: 0.07s Presolved: 3097 rows, 2400 columns, 11650 nonzeros Variable types: 0 continuous, 2400 integer (2400 binary) Found heuristic solution: objective 22.0000000 Root relaxation: objective 3.000000e+00, 3455 iterations, 0.11 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 (4241 simplex iterations) in 0.23 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%