Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:26:32 2012 Optimize a model with 415 rows, 299 columns and 1334 nonzeros Presolve time: 0.00s Presolved: 415 rows, 299 columns, 1334 nonzeros Variable types: 0 continuous, 299 integer (299 binary) Found heuristic solution: objective 91.0000000 Root relaxation: objective 0.000000e+00, 147 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 92 91.00000 0.00000 100% - 0s H 0 0 83.0000000 0.00000 100% - 0s H 0 0 80.0000000 0.00000 100% - 0s 0 0 0.69982 0 98 80.00000 0.69982 99.1% - 0s H 0 0 73.0000000 0.69982 99.0% - 0s H 0 0 69.0000000 0.69982 99.0% - 0s H 0 0 67.0000000 0.69982 99.0% - 0s H 0 0 64.0000000 0.69982 98.9% - 0s 0 2 0.75339 0 98 64.00000 0.75339 98.8% - 0s * 53 53 31 53.0000000 5.67931 89.3% 25.9 0s * 66 51 36 51.0000000 5.67931 88.9% 22.4 0s * 114 77 31 46.0000000 5.68605 87.6% 24.7 0s * 158 102 25 45.0000000 7.89761 82.4% 26.0 0s * 217 125 28 40.0000000 8.03962 79.9% 27.4 0s * 1683 336 33 39.0000000 24.64173 36.8% 27.9 2s H 1957 369 38.0000000 25.12311 33.9% 27.2 2s 3798 321 34.97270 24 147 38.00000 29.23060 23.1% 25.5 5s Cutting planes: Gomory: 1 Mod-K: 1 Explored 5509 nodes (131343 simplex iterations) in 6.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%