Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:24:24 2012 Optimize a model with 441 rows, 311 columns and 1411 nonzeros Presolve time: 0.00s Presolved: 441 rows, 311 columns, 1411 nonzeros Variable types: 0 continuous, 311 integer (311 binary) Found heuristic solution: objective 101.0000000 Root relaxation: objective 0.000000e+00, 139 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 91 101.00000 0.00000 100% - 0s H 0 0 88.0000000 0.00000 100% - 0s H 0 0 81.0000000 0.00000 100% - 0s 0 0 0.65344 0 93 81.00000 0.65344 99.2% - 0s H 0 0 76.0000000 0.65344 99.1% - 0s 0 0 0.68427 0 93 76.00000 0.68427 99.1% - 0s H 0 0 75.0000000 0.68427 99.1% - 0s 0 0 0.71657 0 93 75.00000 0.71657 99.0% - 0s 0 0 0.72184 0 93 75.00000 0.72184 99.0% - 0s 0 0 0.72184 0 93 75.00000 0.72184 99.0% - 0s 0 2 0.78192 0 93 75.00000 0.78192 99.0% - 0s * 53 51 30 48.0000000 3.17886 93.4% 29.9 0s * 655 389 34 46.0000000 14.26112 69.0% 27.2 1s * 1342 526 31 45.0000000 16.27536 63.8% 26.9 1s * 1351 504 36 44.0000000 16.27536 63.0% 26.8 1s 4129 1374 29.58228 19 134 44.00000 23.87500 45.7% 24.2 5s * 8143 2259 30 43.0000000 27.58621 35.8% 22.8 8s 9430 2459 40.39130 24 143 43.00000 28.43396 33.9% 22.5 10s 15886 3165 41.34247 24 147 43.00000 30.91176 28.1% 21.3 15s 22736 3411 40.95775 23 141 43.00000 32.66667 24.0% 20.7 20s 30150 3193 cutoff 25 43.00000 34.00000 20.9% 20.1 25s 37877 2600 40.53425 23 144 43.00000 35.20000 18.1% 19.7 30s 45623 1801 40.12676 24 144 43.00000 36.62500 14.8% 19.3 35s Explored 53606 nodes (1005105 simplex iterations) in 39.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.300000000000e+01, best bound 4.300000000000e+01, gap 0.0%