Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:26:38 2012 Optimize a model with 401 rows, 292 columns and 1292 nonzeros Presolve time: 0.00s Presolved: 401 rows, 292 columns, 1292 nonzeros Variable types: 0 continuous, 292 integer (292 binary) Found heuristic solution: objective 84.0000000 Root relaxation: objective 0.000000e+00, 140 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 84.00000 0.00000 100% - 0s H 0 0 70.0000000 0.00000 100% - 0s 0 0 0.52273 0 93 70.00000 0.52273 99.3% - 0s H 0 0 67.0000000 0.52273 99.2% - 0s 0 0 1.19770 0 95 67.00000 1.19770 98.2% - 0s H 0 0 64.0000000 1.19770 98.1% - 0s 0 0 1.68743 0 96 64.00000 1.68743 97.4% - 0s 0 0 1.69335 0 97 64.00000 1.69335 97.4% - 0s H 0 0 62.0000000 1.69335 97.3% - 0s H 0 0 59.0000000 1.69335 97.1% - 0s 0 2 1.72388 0 97 59.00000 1.72388 97.1% - 0s * 47 43 27 49.0000000 3.07413 93.7% 30.7 0s * 98 81 30 45.0000000 3.19998 92.9% 27.6 0s * 137 95 24 42.0000000 6.50000 84.5% 27.6 0s * 210 143 24 39.0000000 7.98673 79.5% 28.6 0s * 365 234 20 38.0000000 10.13624 73.3% 27.8 0s * 2962 631 30 37.0000000 22.44737 39.3% 26.0 3s 4264 777 29.92500 21 133 37.00000 24.00000 35.1% 24.7 5s H 8383 848 36.0000000 27.86207 22.6% 22.9 8s 10285 697 cutoff 24 36.00000 29.05000 19.3% 22.4 10s Explored 13816 nodes (298852 simplex iterations) in 12.35 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%