Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:01 2012 Optimize a model with 157 rows, 131 columns and 521 nonzeros Presolve time: 0.00s Presolved: 157 rows, 131 columns, 521 nonzeros Variable types: 0 continuous, 131 integer (131 binary) Found heuristic solution: objective 38.0000000 Root relaxation: objective 0.000000e+00, 83 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 52 38.00000 0.00000 100% - 0s H 0 0 28.0000000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s 0 0 0.54348 0 53 25.00000 0.54348 97.8% - 0s 0 0 1.12736 0 55 25.00000 1.12736 95.5% - 0s H 0 0 20.0000000 1.12736 94.4% - 0s H 0 0 18.0000000 1.12736 93.7% - 0s 0 0 1.46642 0 60 18.00000 1.46642 91.9% - 0s 0 0 1.46735 0 59 18.00000 1.46735 91.8% - 0s 0 0 1.46960 0 62 18.00000 1.46960 91.8% - 0s H 0 0 17.0000000 1.46960 91.4% - 0s H 0 0 16.0000000 1.46960 90.8% - 0s 0 2 1.48146 0 62 16.00000 1.48146 90.7% - 0s * 15 15 10 13.0000000 3.34313 74.3% 29.9 0s * 41 24 15 12.0000000 3.34726 72.1% 20.0 0s * 62 23 15 11.0000000 5.08762 53.7% 17.8 0s * 86 20 7 10.0000000 5.77008 42.3% 17.3 0s * 106 12 9 9.0000000 5.91977 34.2% 16.6 0s Cutting planes: Gomory: 4 Mod-K: 3 Explored 129 nodes (2369 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%