Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:25:48 2013 Optimize a model with 71484 rows, 70644 columns and 282324 nonzeros Presolve removed 5641 rows and 0 columns Presolve time: 0.49s Presolved: 65843 rows, 70644 columns, 271042 nonzeros Variable types: 70560 continuous, 84 integer (84 binary) Root relaxation: objective 1.134824e+05, 16549 iterations, 3.54 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 113482.403 0 3 - 113482.403 - - 4s H 0 0 117123.00000 113482.403 3.11% - 4s 0 0 113488.339 0 5 117123.000 113488.339 3.10% - 5s H 0 0 114770.00000 113488.339 1.12% - 5s H 0 0 114574.00000 113488.339 0.95% - 5s 0 0 113488.339 0 5 114574.000 113488.339 0.95% - 5s 0 2 113498.646 0 5 114574.000 113498.646 0.94% - 9s H 2 2 114426.16964 113567.143 0.75% 151 9s H 4 4 114124.26923 113675.846 0.39% 229 9s 5 7 113718.202 3 3 114124.269 113685.588 0.38% 280 10s * 45 13 14 114085.00000 113762.145 0.28% 177 14s * 51 4 5 113911.00000 113777.148 0.12% 186 14s 54 2 cutoff 7 113911.000 113777.148 0.12% 177 15s Cutting planes: Gomory: 2 Flow cover: 5 Explored 64 nodes (26878 simplex iterations) in 15.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.139110000000e+05, best bound 1.139110000000e+05, gap 0.0%