Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:46:45 2012 Optimize a model with 6039 rows, 9900 columns and 27621 nonzeros Presolve removed 424 rows and 2772 columns Presolve time: 0.14s Presolved: 5615 rows, 7128 columns, 23859 nonzeros Variable types: 0 continuous, 7128 integer (7128 binary) Found heuristic solution: objective 29.0000000 Root relaxation: objective 3.000000e+00, 6265 iterations, 0.16 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 0s Explored 0 nodes (6265 simplex iterations) in 0.31 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%