Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:07:32 2012 Optimize a model with 357 rows, 205 columns and 1095 nonzeros Presolve time: 0.00s Presolved: 357 rows, 205 columns, 1095 nonzeros Variable types: 0 continuous, 205 integer (205 binary) Found heuristic solution: objective 81.0000000 Root relaxation: objective 0.000000e+00, 52 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 27 81.00000 0.00000 100% - 0s H 0 0 80.0000000 0.00000 100% - 0s 0 0 0.82492 0 29 80.00000 0.82492 99.0% - 0s 0 0 0.84848 0 29 80.00000 0.84848 98.9% - 0s 0 0 0.87205 0 29 80.00000 0.87205 98.9% - 0s 0 0 0.87205 0 29 80.00000 0.87205 98.9% - 0s 0 0 0.87205 0 29 80.00000 0.87205 98.9% - 0s 0 2 0.93007 0 29 80.00000 0.93007 98.8% - 0s H 44 22 78.0000000 8.09091 89.6% 33.0 0s H 54 26 77.0000000 8.27841 89.2% 35.5 0s H 108 57 76.0000000 13.82353 81.8% 36.8 0s * 225 133 17 75.0000000 20.31100 72.9% 35.2 0s * 301 153 15 72.0000000 21.72727 69.8% 32.8 0s * 1195 299 25 71.0000000 34.00000 52.1% 31.0 1s * 1772 337 25 69.0000000 38.56250 44.1% 28.8 1s 6867 387 65.14286 21 114 69.00000 53.50000 22.5% 24.7 5s H 8112 228 68.0000000 56.85714 16.4% 24.3 5s Explored 8860 nodes (210593 simplex iterations) in 6.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.800000000000e+01, best bound 6.800000000000e+01, gap 0.0%