Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:08:00 2012 Optimize a model with 8739 rows, 13340 columns and 38983 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.15s Presolved: 8852 rows, 13338 columns, 52056 nonzeros Variable types: 0 continuous, 13338 integer (13338 binary) Found heuristic solution: objective 115.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 196 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 92 3.00000 2.00000 33.3% - 0s Explored 0 nodes (329 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%