Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:25:41 2012 Optimize a model with 249 rows, 271 columns and 891 nonzeros Presolve removed 0 rows and 29 columns Presolve time: 0.00s Presolved: 249 rows, 242 columns, 862 nonzeros Variable types: 0 continuous, 242 integer (241 binary) Found heuristic solution: objective 31.0000000 Root relaxation: objective 0.000000e+00, 146 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 101 31.00000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s 0 0 0.12397 0 103 16.00000 0.12397 99.2% - 0s H 0 0 15.0000000 0.12397 99.2% - 0s 0 0 0.70729 0 106 15.00000 0.70729 95.3% - 0s 0 0 0.70729 0 106 15.00000 0.70729 95.3% - 0s 0 2 0.72177 0 106 15.00000 0.72177 95.2% - 0s * 24 18 20 5.0000000 1.00000 80.0% 33.8 0s Cutting planes: Gomory: 4 Zero half: 6 Mod-K: 1 Explored 200 nodes (5016 simplex iterations) in 0.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%