Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:46 2012 Optimize a model with 159 rows, 139 columns and 534 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 159 rows, 137 columns, 532 nonzeros Variable types: 0 continuous, 137 integer (136 binary) Found heuristic solution: objective 34.0000000 Root relaxation: objective 0.000000e+00, 104 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 57 34.00000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s H 0 0 25.0000000 0.00000 100% - 0s 0 0 0.47368 0 58 25.00000 0.47368 98.1% - 0s 0 0 1.00000 0 60 25.00000 1.00000 96.0% - 0s H 0 0 21.0000000 1.00000 95.2% - 0s H 0 0 19.0000000 1.00000 94.7% - 0s 0 0 1.13369 0 61 19.00000 1.13369 94.0% - 0s H 0 0 16.0000000 1.13369 92.9% - 0s 0 0 1.16920 0 63 16.00000 1.16920 92.7% - 0s 0 0 1.17303 0 63 16.00000 1.17303 92.7% - 0s 0 0 1.17303 0 63 16.00000 1.17303 92.7% - 0s H 0 0 13.0000000 1.17303 91.0% - 0s 0 2 1.18059 0 63 13.00000 1.18059 90.9% - 0s * 16 14 10 10.0000000 2.96389 70.4% 28.4 0s * 67 16 7 9.0000000 4.97392 44.7% 21.7 0s Cutting planes: Gomory: 6 Zero half: 4 Explored 101 nodes (2300 simplex iterations) in 0.13 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%