Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:51 2012 Optimize a model with 227 rows, 179 columns and 744 nonzeros Presolve time: 0.00s Presolved: 227 rows, 179 columns, 744 nonzeros Variable types: 0 continuous, 179 integer (179 binary) Found heuristic solution: objective 50.0000000 Root relaxation: objective 0.000000e+00, 90 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 64 50.00000 0.00000 100% - 0s H 0 0 47.0000000 0.00000 100% - 0s H 0 0 44.0000000 0.00000 100% - 0s 0 0 0.60063 0 65 44.00000 0.60063 98.6% - 0s H 0 0 42.0000000 0.60063 98.6% - 0s 0 0 1.00000 0 69 42.00000 1.00000 97.6% - 0s H 0 0 39.0000000 1.00000 97.4% - 0s 0 0 1.00000 0 68 39.00000 1.00000 97.4% - 0s 0 0 1.00034 0 69 39.00000 1.00034 97.4% - 0s H 0 0 38.0000000 1.00034 97.4% - 0s H 0 0 32.0000000 1.00034 96.9% - 0s H 0 0 30.0000000 1.00034 96.7% - 0s 0 2 1.00190 0 69 30.00000 1.00190 96.7% - 0s * 23 23 15 21.0000000 2.58942 87.7% 32.4 0s * 44 30 12 19.0000000 3.14906 83.4% 28.2 0s * 286 85 17 18.0000000 9.67502 46.2% 18.0 0s * 483 58 14 17.0000000 11.80979 30.5% 17.2 0s * 558 22 10 16.0000000 13.47368 15.8% 17.5 0s Cutting planes: Gomory: 3 Zero half: 2 Explored 586 nodes (10479 simplex iterations) in 0.35 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%