Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:47:39 2012 Optimize a model with 333 rows, 219 columns and 1049 nonzeros Presolve time: 0.00s Presolved: 333 rows, 219 columns, 1049 nonzeros Variable types: 0 continuous, 219 integer (219 binary) Found heuristic solution: objective 85.0000000 Root relaxation: objective 0.000000e+00, 87 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 85.00000 0.00000 100% - 0s H 0 0 73.0000000 0.00000 100% - 0s H 0 0 69.0000000 0.00000 100% - 0s 0 0 0.66226 0 55 69.00000 0.66226 99.0% - 0s 0 0 0.84906 0 55 69.00000 0.84906 98.8% - 0s 0 0 0.84906 0 56 69.00000 0.84906 98.8% - 0s 0 0 0.84906 0 55 69.00000 0.84906 98.8% - 0s 0 0 0.84906 0 55 69.00000 0.84906 98.8% - 0s 0 0 0.84906 0 55 69.00000 0.84906 98.8% - 0s H 0 0 68.0000000 0.84906 98.8% - 0s H 0 0 65.0000000 0.84906 98.7% - 0s 0 2 0.93684 0 55 65.00000 0.93684 98.6% - 0s H 27 27 63.0000000 3.65366 94.2% 35.7 0s H 36 36 59.0000000 3.65366 93.8% 30.5 0s * 47 46 29 52.0000000 3.65366 93.0% 26.7 0s * 84 59 21 48.0000000 3.65625 92.4% 26.8 0s * 169 121 24 47.0000000 7.29792 84.5% 26.3 0s * 229 154 21 46.0000000 11.14000 75.8% 26.1 0s * 377 208 18 45.0000000 12.72857 71.7% 24.6 0s * 553 272 20 44.0000000 16.57176 62.3% 24.0 0s * 1303 392 26 43.0000000 20.50000 52.3% 24.1 1s * 3049 489 31 41.0000000 27.36364 33.3% 22.4 2s 6476 340 cutoff 23 41.00000 32.55172 20.6% 21.0 5s Cutting planes: Gomory: 1 Mod-K: 1 Explored 7879 nodes (160887 simplex iterations) in 5.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.100000000000e+01, best bound 4.100000000000e+01, gap 0.0%