Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:47:37 2012 Optimize a model with 289 rows, 197 columns and 917 nonzeros Presolve time: 0.00s Presolved: 289 rows, 197 columns, 917 nonzeros Variable types: 0 continuous, 197 integer (197 binary) Found heuristic solution: objective 65.0000000 Root relaxation: objective 0.000000e+00, 98 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 53 65.00000 0.00000 100% - 0s H 0 0 55.0000000 0.00000 100% - 0s 0 0 0.73287 0 55 55.00000 0.73287 98.7% - 0s 0 0 0.85799 0 55 55.00000 0.85799 98.4% - 0s 0 0 0.89374 0 55 55.00000 0.89374 98.4% - 0s 0 0 0.92949 0 56 55.00000 0.92949 98.3% - 0s 0 0 0.94107 0 60 55.00000 0.94107 98.3% - 0s 0 0 0.94816 0 61 55.00000 0.94816 98.3% - 0s 0 2 1.00323 0 61 55.00000 1.00323 98.2% - 0s * 31 31 18 40.0000000 5.93498 85.2% 28.5 0s * 56 45 15 37.0000000 5.95142 83.9% 25.1 0s * 116 85 17 36.0000000 9.05053 74.9% 22.9 0s * 531 183 14 35.0000000 20.10638 42.6% 19.0 0s * 1183 183 10 34.0000000 24.40000 28.2% 17.4 0s Cutting planes: Gomory: 1 Mod-K: 5 Explored 2123 nodes (34407 simplex iterations) in 1.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%