Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:11 2012 Optimize a model with 195 rows, 155 columns and 640 nonzeros Presolve time: 0.00s Presolved: 195 rows, 155 columns, 640 nonzeros Variable types: 0 continuous, 155 integer (155 binary) Found heuristic solution: objective 47.0000000 Root relaxation: objective 0.000000e+00, 88 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 58 47.00000 0.00000 100% - 0s H 0 0 36.0000000 0.00000 100% - 0s 0 0 0.67647 0 62 36.00000 0.67647 98.1% - 0s H 0 0 31.0000000 0.67647 97.8% - 0s 0 0 0.82456 0 62 31.00000 0.82456 97.3% - 0s H 0 0 27.0000000 0.82456 96.9% - 0s 0 0 0.83406 0 62 27.00000 0.83406 96.9% - 0s 0 0 0.83406 0 62 27.00000 0.83406 96.9% - 0s 0 0 0.83406 0 62 27.00000 0.83406 96.9% - 0s 0 2 0.83406 0 62 27.00000 0.83406 96.9% - 0s * 21 21 13 19.0000000 3.56449 81.2% 24.6 0s * 42 34 15 18.0000000 3.66756 79.6% 20.0 0s * 48 27 18 17.0000000 3.66756 78.4% 17.9 0s * 69 32 16 15.0000000 5.15652 65.6% 17.6 0s * 142 34 9 14.0000000 7.70000 45.0% 16.6 0s Cutting planes: Gomory: 1 Zero half: 4 Explored 289 nodes (4539 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%