Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:27:41 2012 Optimize a model with 245 rows, 197 columns and 807 nonzeros Presolve time: 0.00s Presolved: 245 rows, 197 columns, 807 nonzeros Variable types: 0 continuous, 197 integer (197 binary) Found heuristic solution: objective 51.0000000 Root relaxation: objective 0.000000e+00, 123 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 74 51.00000 0.00000 100% - 0s H 0 0 42.0000000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s H 0 0 36.0000000 0.00000 100% - 0s 0 0 0.48671 0 77 36.00000 0.48671 98.6% - 0s 0 0 0.51629 0 78 36.00000 0.51629 98.6% - 0s H 0 0 34.0000000 0.51629 98.5% - 0s 0 0 0.54274 0 78 34.00000 0.54274 98.4% - 0s 0 0 0.54675 0 79 34.00000 0.54675 98.4% - 0s 0 0 0.54675 0 79 34.00000 0.54675 98.4% - 0s H 0 0 30.0000000 0.54675 98.2% - 0s H 0 0 29.0000000 0.54675 98.1% - 0s 0 2 0.62450 0 79 29.00000 0.62450 97.8% - 0s * 26 26 18 20.0000000 3.45192 82.7% 24.5 0s H 27 22 19.0000000 3.45192 81.8% 23.6 0s * 69 38 18 17.0000000 5.27622 69.0% 21.1 0s * 272 31 10 16.0000000 11.40816 28.7% 19.8 0s Cutting planes: Gomory: 1 Zero half: 4 Mod-K: 1 Explored 351 nodes (6974 simplex iterations) in 0.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%