Gurobi 5.0.1 (linux64) logging started Wed Apr 24 11:17:14 2013 Optimize a model with 170430 rows, 169130 columns and 676130 nonzeros Presolve removed 10099 rows and 0 columns Presolve time: 1.59s Presolved: 160331 rows, 169130 columns, 655932 nonzeros Variable types: 169000 continuous, 130 integer (130 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 21201 1.3898307e+05 3.831995e+04 0.000000e+00 5s 32079 1.9731806e+05 1.926600e+04 0.000000e+00 10s 38679 2.1700066e+05 9.878289e+03 0.000000e+00 15s 44870 2.2275722e+05 1.074218e+03 0.000000e+00 20s 46118 2.2284052e+05 0.000000e+00 0.000000e+00 22s Root relaxation: objective 2.228405e+05, 46118 iterations, 21.82 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 222840.525 0 2 - 222840.525 - - 23s H 0 0 229493.00000 222840.525 2.90% - 25s 0 0 222840.647 0 3 229493.000 222840.647 2.90% - 26s H 0 0 225602.18750 222840.647 1.22% - 31s H 0 0 224814.00000 222840.647 0.88% - 32s 0 2 222841.841 0 3 224814.000 222841.841 0.88% - 37s 2 4 222949.083 2 3 224814.000 222949.083 0.83% 785 40s H 4 4 223783.23810 222956.925 0.37% 580 42s H 5 5 223556.42857 222956.925 0.27% 610 42s H 9 9 223457.00000 222956.925 0.22% 350 43s 13 13 223016.841 12 1 223457.000 222956.925 0.22% 292 45s H 15 12 223441.28571 222956.925 0.22% 259 45s * 16 7 15 223021.00000 222956.925 0.03% 245 45s Cutting planes: Gomory: 1 Explored 20 nodes (50979 simplex iterations) in 46.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.230210000000e+05, best bound 2.230007500000e+05, gap 0.0091%