Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:42:22 2012 Optimize a model with 469 rows, 328 columns and 1498 nonzeros Presolve time: 0.00s Presolved: 469 rows, 328 columns, 1498 nonzeros Variable types: 0 continuous, 328 integer (328 binary) Found heuristic solution: objective 103.0000000 Root relaxation: objective 0.000000e+00, 154 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 94 103.00000 0.00000 100% - 0s H 0 0 86.0000000 0.00000 100% - 0s H 0 0 85.0000000 0.00000 100% - 0s H 0 0 84.0000000 0.00000 100% - 0s 0 0 0.57317 0 95 84.00000 0.57317 99.3% - 0s 0 0 1.17766 0 98 84.00000 1.17766 98.6% - 0s 0 0 1.42081 0 99 84.00000 1.42081 98.3% - 0s 0 0 1.42833 0 98 84.00000 1.42833 98.3% - 0s 0 0 1.44367 0 98 84.00000 1.44367 98.3% - 0s H 0 0 81.0000000 1.44367 98.2% - 0s H 0 0 80.0000000 1.44367 98.2% - 0s 0 2 1.49047 0 98 80.00000 1.49047 98.1% - 0s * 73 71 46 74.0000000 3.28528 95.6% 24.9 0s H 80 59 69.0000000 3.30901 95.2% 26.1 0s * 117 83 25 57.0000000 3.30901 94.2% 26.8 0s * 163 118 27 55.0000000 6.10000 88.9% 27.7 0s * 255 194 28 54.0000000 6.12233 88.7% 30.0 0s H 317 227 50.0000000 8.99177 82.0% 31.1 0s H 407 265 46.0000000 9.51512 79.3% 31.6 0s 3485 1181 45.00000 27 157 46.00000 23.94595 47.9% 28.1 5s * 7498 2181 33 45.0000000 28.00000 37.8% 25.8 9s 8064 2292 31.50000 20 141 45.00000 28.21053 37.3% 25.6 10s 13181 3108 43.40000 26 150 45.00000 30.57895 32.0% 24.8 15s 18896 3688 41.63291 25 153 45.00000 32.21429 28.4% 24.0 20s 24801 4121 35.93976 22 149 45.00000 33.50000 25.6% 23.6 25s 30891 4348 38.60000 24 152 45.00000 34.48571 23.4% 23.2 30s 34401 4395 43.66667 27 152 45.00000 34.88889 22.5% 23.0 41s 39546 4303 43.76923 26 157 45.00000 35.57143 21.0% 22.7 45s H44788 3762 44.0000000 36.09091 18.0% 22.6 49s 44898 3751 40.50000 25 151 44.00000 36.11268 17.9% 22.6 50s 51359 2962 42.96203 25 153 44.00000 37.00000 15.9% 22.3 55s 58124 1763 40.75949 25 153 44.00000 38.50000 12.5% 22.1 60s Explored 62475 nodes (1362055 simplex iterations) in 63.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.400000000000e+01, best bound 4.400000000000e+01, gap 0.0%