Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:07:17 2012 Optimize a model with 11469 rows, 5550 columns and 39588 nonzeros Presolve removed 1186 rows and 2 columns Presolve time: 0.52s Presolved: 10283 rows, 5548 columns, 36350 nonzeros Variable types: 0 continuous, 5548 integer (5548 binary) Found heuristic solution: objective 74.0000000 Root relaxation: objective 3.000000e+00, 7324 iterations, 1.20 seconds Total elapsed time = 5.51s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 378 74.00000 3.00000 95.9% - 6s H 0 0 71.0000000 3.00000 95.8% - 6s H 0 0 7.0000000 3.00000 57.1% - 6s H 0 0 6.0000000 3.00000 50.0% - 6s 0 0 3.00000 0 482 6.00000 3.00000 50.0% - 7s H 0 0 3.0000000 3.00000 0.0% - 7s Cutting planes: Gomory: 2 Zero half: 5 Explored 0 nodes (32072 simplex iterations) in 7.96 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%