Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:34:46 2012 Optimize a model with 9515 rows, 15006 columns and 42942 nonzeros Presolve removed 36 rows and 4150 columns Presolve time: 0.16s Presolved: 9479 rows, 10856 columns, 38638 nonzeros Variable types: 0 continuous, 10856 integer (10856 binary) Found heuristic solution: objective 122.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 173 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 96 3.00000 2.00000 33.3% - 0s Explored 0 nodes (307 simplex iterations) in 0.21 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%