Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:27:40 2012 Optimize a model with 401 rows, 229 columns and 1229 nonzeros Presolve time: 0.00s Presolved: 401 rows, 229 columns, 1229 nonzeros Variable types: 0 continuous, 229 integer (229 binary) Found heuristic solution: objective 107.0000000 Found heuristic solution: objective 104.0000000 Root relaxation: objective 0.000000e+00, 58 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 29 104.00000 0.00000 100% - 0s H 0 0 100.0000000 0.00000 100% - 0s 0 0 0.76355 0 31 100.00000 0.76355 99.2% - 0s 0 0 0.79309 0 42 100.00000 0.79309 99.2% - 0s 0 0 0.83744 0 31 100.00000 0.83744 99.2% - 0s 0 0 0.83744 0 31 100.00000 0.83744 99.2% - 0s 0 0 0.86207 0 31 100.00000 0.86207 99.1% - 0s H 0 0 98.0000000 0.86207 99.1% - 0s H 0 0 96.0000000 0.86207 99.1% - 0s 0 0 0.86207 0 31 96.00000 0.86207 99.1% - 0s 0 0 0.86207 0 31 96.00000 0.86207 99.1% - 0s 0 0 0.86207 0 31 96.00000 0.86207 99.1% - 0s H 0 0 92.0000000 0.86207 99.1% - 0s 0 2 0.86799 0 31 92.00000 0.86799 99.1% - 0s H 11 11 90.0000000 7.92857 91.2% 58.5 0s * 35 27 19 89.0000000 7.92857 91.1% 39.2 0s H 55 41 87.0000000 8.28571 90.5% 38.6 0s H 109 68 86.0000000 15.00000 82.6% 33.5 0s * 730 356 31 85.0000000 31.50000 62.9% 32.8 0s * 965 362 34 84.0000000 31.50000 62.5% 31.7 1s H 2231 601 82.0000000 45.00000 45.1% 27.7 2s H 2241 574 79.0000000 45.00000 43.0% 27.7 2s H 2985 676 78.0000000 48.66667 37.6% 26.9 3s 5254 892 71.00000 24 123 78.00000 55.69231 28.6% 25.6 5s 12546 745 cutoff 27 78.00000 64.85714 16.8% 23.2 10s Cutting planes: Gomory: 1 Mod-K: 5 Explored 16316 nodes (361060 simplex iterations) in 12.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.800000000000e+01, best bound 7.800000000000e+01, gap 0.0%