Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:34:19 2012 Optimize a model with 45827 rows, 40602 columns and 177079 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 1.06s Presolved: 46026 rows, 40600 columns, 217024 nonzeros Variable types: 0 continuous, 40600 integer (40600 binary) Found heuristic solution: objective 201.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 432 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 356 3.00000 2.00000 33.3% - 1s Explored 0 nodes (812 simplex iterations) in 1.35 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%