Gurobi 5.0.1 (linux64) logging started Sun Nov 18 09:03:25 2012 Optimize a model with 555 rows, 517 columns and 1902 nonzeros Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 555 rows, 495 columns, 1880 nonzeros Variable types: 0 continuous, 495 integer (494 binary) Found heuristic solution: objective 99.0000000 Root relaxation: objective 0.000000e+00, 301 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 0 205 99.00000 0.00000 100% - 0s H 0 0 83.0000000 0.00000 100% - 0s H 0 0 82.0000000 0.00000 100% - 0s H 0 0 79.0000000 0.00000 100% - 0s 0 0 0.38920 0 206 79.00000 0.38920 100% - 0s H 0 0 75.0000000 0.38920 99.5% - 0s 0 0 1.00000 0 209 75.00000 1.00000 98.7% - 0s H 0 0 68.0000000 1.00000 98.5% - 0s H 0 0 62.0000000 1.00000 98.4% - 0s 0 0 1.00000 0 208 62.00000 1.00000 98.4% - 0s H 0 0 58.0000000 1.00000 98.3% - 0s 0 0 1.00000 0 208 58.00000 1.00000 98.3% - 0s 0 0 1.00000 0 207 58.00000 1.00000 98.3% - 0s H 0 0 51.0000000 1.00000 98.0% - 0s H 0 0 49.0000000 1.00000 98.0% - 0s H 0 0 44.0000000 1.00000 97.7% - 0s 0 2 1.00000 0 207 44.00000 1.00000 97.7% - 0s H 27 27 36.0000000 1.00000 97.2% 57.6 0s * 48 46 27 20.0000000 1.00000 95.0% 43.2 0s H 216 83 16.0000000 3.79805 76.3% 38.9 0s Cutting planes: Gomory: 3 Zero half: 1 Explored 893 nodes (31666 simplex iterations) in 1.54 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%