Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:54:23 2012 Optimize a model with 33303 rows, 32942 columns and 131947 nonzeros Presolve removed 24 rows and 3984 columns Presolve time: 0.72s Presolved: 33279 rows, 28958 columns, 127597 nonzeros Variable types: 0 continuous, 28958 integer (28958 binary) Found heuristic solution: objective 181.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 358 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 0 268 3.00000 2.00000 33.3% - 0s Explored 0 nodes (640 simplex iterations) in 0.90 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%