Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:42:55 2013 Optimize a model with 5700 rows, 30100 columns and 70050 nonzeros Presolve removed 150 rows and 100 columns Presolve time: 0.53s Presolved: 5550 rows, 30000 columns, 64900 nonzeros Variable types: 27550 continuous, 2450 integer (2450 binary) Root relaxation: objective 2.208160e+05, 9157 iterations, 0.81 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 220815.985 0 4 - 220815.985 - - 1s 0 0 220902.422 0 4 - 220902.422 - - 1s 0 0 220952.816 0 3 - 220952.816 - - 1s 0 0 220952.816 0 3 - 220952.816 - - 1s 0 0 220952.816 0 3 - 220952.816 - - 2s 0 0 220958.131 0 3 - 220958.131 - - 2s 0 0 220959.223 0 3 - 220959.223 - - 2s 0 0 220962.924 0 3 - 220962.924 - - 2s 0 0 220962.924 0 3 - 220962.924 - - 2s 0 0 220964.106 0 3 - 220964.106 - - 2s 0 0 220964.227 0 3 - 220964.227 - - 2s 0 0 220964.341 0 4 - 220964.341 - - 3s 0 2 220969.594 0 4 - 220969.594 - - 4s 2 4 221015.175 2 3 - 221015.175 - 32.5 5s 113 115 221529.362 110 1 - 221097.917 - 10.3 10s 217 219 221595.907 214 2 - 221097.917 - 7.0 15s H 237 71 221619.89871 221097.917 0.24% 6.7 15s H 264 49 221510.75285 221180.501 0.15% 8.1 16s H 345 85 221486.04475 221257.255 0.10% 9.3 17s H 411 91 221480.09300 221265.666 0.10% 9.3 17s * 413 89 27 221476.95360 221265.666 0.10% 9.4 17s 601 134 221391.034 15 4 221476.954 221367.473 0.05% 9.5 23s 660 147 221367.473 24 1 221476.954 221367.473 0.05% 13.4 25s * 1040 123 35 221476.69350 221378.864 0.04% 10.8 28s 1357 109 221444.931 29 1 221476.693 221426.408 0.02% 9.9 30s Cutting planes: Gomory: 1 Flow cover: 6 Explored 1611 nodes (24702 simplex iterations) in 31.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.214766934992e+05, best bound 2.214547500360e+05, gap 0.0099%