Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:51:52 2012 Optimize a model with 373 rows, 269 columns and 1199 nonzeros Presolve time: 0.00s Presolved: 373 rows, 269 columns, 1199 nonzeros Variable types: 0 continuous, 269 integer (269 binary) Found heuristic solution: objective 72.0000000 Root relaxation: objective 0.000000e+00, 126 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 83 72.00000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s 0 0 0.72777 0 85 68.00000 0.72777 98.9% - 0s H 0 0 66.0000000 0.72777 98.9% - 0s 0 0 0.81572 0 87 66.00000 0.81572 98.8% - 0s 0 0 0.83084 0 89 66.00000 0.83084 98.7% - 0s 0 0 0.83100 0 91 66.00000 0.83100 98.7% - 0s 0 0 0.83100 0 91 66.00000 0.83100 98.7% - 0s H 0 0 58.0000000 0.83100 98.6% - 0s H 0 0 54.0000000 0.83100 98.5% - 0s 0 2 0.87011 0 91 54.00000 0.87011 98.4% - 0s * 48 44 30 48.0000000 3.81349 92.1% 26.1 0s H 81 63 46.0000000 3.90073 91.5% 25.2 0s * 84 62 23 42.0000000 3.90073 90.7% 24.8 0s * 128 77 22 40.0000000 5.44144 86.4% 24.4 0s * 538 313 24 39.0000000 12.99459 66.7% 24.4 0s * 542 305 26 38.0000000 12.99459 65.8% 24.2 0s H 1855 431 36.0000000 21.11765 41.3% 24.8 1s 5348 614 28.50000 20 127 36.00000 27.02778 24.9% 22.6 5s Explored 9603 nodes (208612 simplex iterations) in 8.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.600000000000e+01, best bound 3.600000000000e+01, gap 0.0%