Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:08:47 2012 Optimize a model with 1791 rows, 1056 columns and 6270 nonzeros Presolve removed 419 rows and 34 columns Presolve time: 0.08s Presolved: 1372 rows, 1022 columns, 5128 nonzeros Variable types: 0 continuous, 1022 integer (1022 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 3.000000e+00, 908 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 55 32.00000 3.00000 90.6% - 0s H 0 0 18.0000000 3.00000 83.3% - 0s H 0 0 5.0000000 3.00000 40.0% - 0s 0 0 3.00000 0 148 5.00000 3.00000 40.0% - 0s H 0 0 4.0000000 3.00000 25.0% - 0s H 0 0 3.0000000 3.00000 0.0% - 0s Cutting planes: Gomory: 1 Explored 0 nodes (4208 simplex iterations) in 0.26 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%