Gurobi 5.0.1 (linux64) logging started Sat Nov 17 21:29:45 2012 Optimize a model with 461 rows, 261 columns and 1411 nonzeros Presolve time: 0.00s Presolved: 461 rows, 261 columns, 1411 nonzeros Variable types: 0 continuous, 261 integer (261 binary) Found heuristic solution: objective 114.0000000 Root relaxation: objective 0.000000e+00, 71 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 31 114.00000 0.00000 100% - 0s 0 0 0.64516 0 33 114.00000 0.64516 99.4% - 0s H 0 0 113.0000000 0.64516 99.4% - 0s 0 0 0.88172 0 34 113.00000 0.88172 99.2% - 0s 0 0 0.88172 0 33 113.00000 0.88172 99.2% - 0s 0 0 0.89247 0 36 113.00000 0.89247 99.2% - 0s 0 0 0.90323 0 34 113.00000 0.90323 99.2% - 0s 0 0 0.90323 0 34 113.00000 0.90323 99.2% - 0s H 0 0 106.0000000 0.90323 99.1% - 0s 0 0 0.90323 0 33 106.00000 0.90323 99.1% - 0s 0 0 0.90323 0 33 106.00000 0.90323 99.1% - 0s 0 0 0.90323 0 33 106.00000 0.90323 99.1% - 0s 0 2 1.00000 0 33 106.00000 1.00000 99.1% - 0s * 277 170 20 105.0000000 24.97840 76.2% 38.4 0s * 292 170 20 104.0000000 24.97840 76.0% 37.3 0s * 313 183 22 99.0000000 25.03333 74.7% 36.6 0s * 315 181 21 98.0000000 25.03333 74.5% 36.4 0s H 429 227 97.0000000 28.78947 70.3% 35.7 0s H 824 354 93.0000000 33.68421 63.8% 37.2 1s 4859 1196 62.69565 17 128 93.00000 58.00000 37.6% 28.5 5s 11155 2213 88.44444 22 146 93.00000 68.00000 26.9% 25.8 10s 18740 2818 89.00000 23 146 93.00000 73.00000 21.5% 24.5 15s 26966 2942 80.90000 20 140 93.00000 76.18182 18.1% 23.7 20s 35702 2570 86.88889 22 146 93.00000 78.70588 15.4% 23.0 25s *43806 1659 26 92.0000000 81.00000 12.0% 22.5 29s 43892 1644 86.77778 22 146 92.00000 81.14286 11.8% 22.5 30s Explored 49091 nodes (1081717 simplex iterations) in 32.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.200000000000e+01, best bound 9.200000000000e+01, gap 0.0%