Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:01:03 2012 Optimize a model with 353 rows, 232 columns and 1112 nonzeros Presolve time: 0.00s Presolved: 353 rows, 232 columns, 1112 nonzeros Variable types: 0 continuous, 232 integer (232 binary) Found heuristic solution: objective 82.0000000 Root relaxation: objective 0.000000e+00, 94 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 56 82.00000 0.00000 100% - 0s H 0 0 71.0000000 0.00000 100% - 0s 0 0 0.64815 0 58 71.00000 0.64815 99.1% - 0s 0 0 0.75926 0 58 71.00000 0.75926 98.9% - 0s 0 0 0.77778 0 58 71.00000 0.77778 98.9% - 0s 0 0 0.82963 0 61 71.00000 0.82963 98.8% - 0s 0 0 0.83201 0 64 71.00000 0.83201 98.8% - 0s H 0 0 69.0000000 0.83201 98.8% - 0s H 0 0 64.0000000 0.83201 98.7% - 0s 0 2 0.89689 0 64 64.00000 0.89689 98.6% - 0s * 40 40 23 56.0000000 5.62153 90.0% 26.6 0s * 85 69 24 55.0000000 5.65479 89.7% 24.0 0s * 181 144 25 52.0000000 9.68889 81.4% 25.3 0s * 237 181 22 50.0000000 13.89630 72.2% 25.4 0s * 361 218 20 49.0000000 14.00000 71.4% 22.9 0s * 364 214 18 48.0000000 14.00000 70.8% 22.8 0s * 366 210 19 47.0000000 14.00000 70.2% 22.8 0s * 545 284 22 46.0000000 16.76852 63.5% 23.2 0s H 548 270 45.0000000 16.76852 62.7% 23.1 0s H 1746 354 44.0000000 24.94286 43.3% 22.6 1s * 1749 350 28 43.0000000 24.94286 42.0% 22.6 1s 5397 305 40.95455 19 116 43.00000 34.00000 20.9% 22.2 5s Cutting planes: Gomory: 1 Mod-K: 4 Explored 6587 nodes (142934 simplex iterations) in 5.88 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.300000000000e+01, best bound 4.300000000000e+01, gap 0.0%