Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:44:51 2012 Optimize a model with 13247 rows, 19182 columns and 58234 nonzeros Presolve removed 278 rows and 2 columns Presolve time: 0.22s Presolved: 13107 rows, 19180 columns, 76400 nonzeros Variable types: 0 continuous, 19180 integer (19180 binary) Found heuristic solution: objective 138.0000000 Root relaxation: objective 3.000000e+00, 10964 iterations, 0.87 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% - 5s Explored 0 nodes (29343 simplex iterations) in 5.03 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%