Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:58:05 2012 Optimize a model with 6479 rows, 11772 columns and 30670 nonzeros Presolve removed 249 rows and 3350 columns Presolve time: 0.13s Presolved: 6230 rows, 8422 columns, 26666 nonzeros Variable types: 0 continuous, 8422 integer (8422 binary) Found heuristic solution: objective 108.0000000 Root relaxation: objective 3.000000e+00, 4068 iterations, 0.09 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 (12382 simplex iterations) in 1.12 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%