Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:12:02 2013 Optimize a model with 69803 rows, 68973 columns and 275643 nonzeros Presolve removed 3996 rows and 0 columns Presolve time: 0.46s Presolved: 65807 rows, 68973 columns, 267651 nonzeros Variable types: 68890 continuous, 83 integer (83 binary) Root relaxation: objective 1.056948e+05, 14835 iterations, 3.47 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 105694.796 0 3 - 105694.796 - - 4s H 0 0 110467.00000 105694.796 4.32% - 4s 0 0 105695.064 0 4 110467.000 105695.064 4.32% - 5s H 0 0 109831.56618 105695.064 3.77% - 6s H 0 0 106403.00000 105695.064 0.67% - 7s 0 2 105696.600 0 4 106403.000 105696.600 0.66% - 8s 8 9 106009.002 6 2 106403.000 105973.959 0.40% 279 10s H 20 10 106383.00000 105973.959 0.38% 165 11s * 22 11 18 106349.00000 105973.959 0.35% 152 11s * 24 9 17 106343.00000 105973.959 0.35% 142 11s H 27 9 106288.00000 105978.975 0.29% 130 11s H 33 14 106275.00000 105987.180 0.27% 124 12s H 34 15 106115.00000 105987.180 0.12% 125 12s H 36 13 106108.05000 105987.180 0.11% 121 12s H 37 13 106105.00000 105987.180 0.11% 119 12s * 38 10 14 106088.00000 105987.180 0.10% 116 12s Cutting planes: Gomory: 1 Explored 57 nodes (20554 simplex iterations) in 13.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.060880000000e+05, best bound 1.060880000000e+05, gap 0.0%