Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:12:11 2013 Optimize a model with 5800 rows, 35150 columns and 85250 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 0.21s Presolved: 5750 rows, 35100 columns, 80200 nonzeros Variable types: 30100 continuous, 5000 integer (5000 binary) Root relaxation: objective 2.252562e+05, 4635 iterations, 0.19 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 225256.157 0 2 - 225256.157 - - 0s 0 0 225307.241 0 6 - 225307.241 - - 0s 0 0 225321.245 0 6 - 225321.245 - - 0s 0 0 225326.811 0 10 - 225326.811 - - 0s 0 0 225336.937 0 10 - 225336.937 - - 1s 0 0 225342.914 0 6 - 225342.914 - - 1s 0 0 225347.149 0 6 - 225347.149 - - 1s 0 0 225348.347 0 4 - 225348.347 - - 1s 0 0 225351.860 0 6 - 225351.860 - - 1s 0 0 225353.408 0 4 - 225353.408 - - 1s 0 0 225355.914 0 4 - 225355.914 - - 1s 0 0 225357.733 0 4 - 225357.733 - - 1s 0 0 225359.470 0 4 - 225359.470 - - 1s 0 0 225359.678 0 4 - 225359.678 - - 2s 0 0 225361.685 0 6 - 225361.685 - - 2s 0 0 225369.097 0 4 - 225369.097 - - 2s 0 0 225376.992 0 4 - 225376.992 - - 2s 0 0 225432.247 0 6 - 225432.247 - - 2s 0 0 225438.550 0 6 - 225438.550 - - 2s 0 0 225438.550 0 6 - 225438.550 - - 2s 0 0 225438.550 0 6 - 225438.550 - - 2s 0 0 225438.550 0 6 - 225438.550 - - 3s 0 0 225438.550 0 6 - 225438.550 - - 3s H 0 0 226734.60561 225438.550 0.57% - 3s 0 2 225438.550 0 6 226734.606 225438.550 0.57% - 3s 19 11 cutoff 10 226734.606 225904.288 0.37% 173 5s * 22 0 12 225915.15199 225915.152 0.0% 151 5s Cutting planes: Gomory: 1 Implied bound: 75 Flow cover: 4 Explored 23 nodes (9427 simplex iterations) in 5.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.259151519913e+05, best bound 2.259151519913e+05, gap 0.0%