Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:24:52 2012 Optimize a model with 7616 rows, 4692 columns and 27268 nonzeros Presolve removed 750 rows and 136 columns Presolve time: 0.14s Presolved: 6866 rows, 4556 columns, 25296 nonzeros Variable types: 0 continuous, 4556 integer (4556 binary) Found heuristic solution: objective 38.0000000 Root relaxation: objective 3.000000e+00, 6597 iterations, 0.74 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 33 38.00000 3.00000 92.1% - 1s H 0 0 3.0000000 3.00000 0.0% - 1s Explored 0 nodes (11835 simplex iterations) in 1.52 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%