Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:46:56 2012 Optimize a model with 12027 rows, 15500 columns and 50962 nonzeros Presolve removed 374 rows and 2 columns Presolve time: 0.19s Presolved: 11777 rows, 15498 columns, 65282 nonzeros Variable types: 0 continuous, 15498 integer (15498 binary) Found heuristic solution: objective 124.0000000 Root relaxation: objective 3.000000e+00, 8371 iterations, 0.53 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 (13616 simplex iterations) in 1.38 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%