Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:04:04 2012 Optimize a model with 32199 rows, 34040 columns and 129718 nonzeros Presolve removed 29 rows and 4970 columns Presolve time: 0.69s Presolved: 32170 rows, 29070 columns, 124400 nonzeros Variable types: 0 continuous, 29070 integer (29070 binary) Found heuristic solution: objective 184.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 348 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 288 3.00000 2.00000 33.3% - 0s Explored 0 nodes (659 simplex iterations) in 0.87 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%