Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:40 2012 Optimize a model with 163 rows, 137 columns and 542 nonzeros Presolve time: 0.00s Presolved: 163 rows, 137 columns, 542 nonzeros Variable types: 0 continuous, 137 integer (137 binary) Found heuristic solution: objective 34.0000000 Root relaxation: objective 0.000000e+00, 78 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 56 34.00000 0.00000 100% - 0s H 0 0 22.0000000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s 0 0 0.46392 0 64 15.00000 0.46392 96.9% - 0s H 0 0 9.0000000 0.46392 94.8% - 0s 0 0 0.54294 0 59 9.00000 0.54294 94.0% - 0s 0 0 0.60401 0 60 9.00000 0.60401 93.3% - 0s 0 0 0.60772 0 61 9.00000 0.60772 93.2% - 0s 0 0 0.60772 0 60 9.00000 0.60772 93.2% - 0s 0 2 0.60772 0 60 9.00000 0.60772 93.2% - 0s * 10 8 8 7.0000000 3.11111 55.6% 21.7 0s Cutting planes: Gomory: 1 Mod-K: 4 Explored 31 nodes (837 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%