Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:26:40 2012 Optimize a model with 34208 rows, 35910 columns and 137590 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.80s Presolved: 34395 rows, 35908 columns, 172949 nonzeros Variable types: 0 continuous, 35908 integer (35908 binary) Found heuristic solution: objective 189.0000000 Root relaxation: objective 2.000000e+00, 21692 iterations, 1.46 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 292 189.00000 2.00000 98.9% - 5s H 0 0 161.0000000 2.00000 98.8% - 5s H 0 0 4.0000000 2.00000 50.0% - 5s H 0 0 3.0000000 2.00000 33.3% - 5s 0 0 infeasible 0 3.00000 2.00000 33.3% - 5s Cutting planes: Gomory: 2 Zero half: 11 Explored 0 nodes (73192 simplex iterations) in 5.27 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%