Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:22:46 2012 Optimize a model with 7326 rows, 4422 columns and 26136 nonzeros Presolve removed 660 rows and 0 columns Presolve time: 0.15s Presolved: 6666 rows, 4422 columns, 24486 nonzeros Variable types: 0 continuous, 4422 integer (4422 binary) Found heuristic solution: objective 38.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: cutoff, 6846 iterations, 0.43 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 3.00000 2.00000 33.3% - 0s Explored 0 nodes (6846 simplex iterations) in 0.60 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%