Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:45 2012 Optimize a model with 199 rows, 159 columns and 654 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 199 rows, 157 columns, 652 nonzeros Variable types: 0 continuous, 157 integer (156 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 0.000000e+00, 89 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 41.00000 0.00000 100% - 0s H 0 0 40.0000000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s H 0 0 33.0000000 0.00000 100% - 0s 0 0 0.41574 0 59 33.00000 0.41574 98.7% - 0s H 0 0 31.0000000 0.41574 98.7% - 0s 0 0 0.85875 0 62 31.00000 0.85875 97.2% - 0s H 0 0 28.0000000 0.85875 96.9% - 0s 0 0 0.86225 0 62 28.00000 0.86225 96.9% - 0s 0 0 0.86225 0 62 28.00000 0.86225 96.9% - 0s H 0 0 27.0000000 0.86225 96.8% - 0s H 0 0 26.0000000 0.86225 96.7% - 0s 0 2 0.91429 0 62 26.00000 0.91429 96.5% - 0s * 26 20 18 18.0000000 1.98029 89.0% 23.2 0s * 47 25 12 16.0000000 3.29608 79.4% 26.6 0s * 83 32 10 15.0000000 4.53136 69.8% 25.2 0s * 123 35 11 14.0000000 6.12863 56.2% 25.2 0s Cutting planes: Gomory: 4 Zero half: 5 Explored 249 nodes (5771 simplex iterations) in 0.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%