Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:43:44 2013 Optimize a model with 73270 rows, 72420 columns and 289170 nonzeros Presolve removed 85 rows and 0 columns Presolve time: 0.34s Presolved: 73185 rows, 72420 columns, 289085 nonzeros Variable types: 72335 continuous, 85 integer (85 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8253 7.4955761e+04 1.404474e+04 0.000000e+00 5s 9985 7.5917523e+04 0.000000e+00 0.000000e+00 10s Root relaxation: objective 7.591752e+04, 9985 iterations, 9.73 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 75917.5233 0 72 - 75917.5233 - - 10s H 0 0 152570.00000 75917.5233 50.2% - 18s 0 0 100881.195 0 18 152570.000 100881.195 33.9% - 37s H 0 0 137466.95653 100881.195 26.6% - 37s H 0 0 121688.00000 100881.195 17.1% - 38s 0 0 108817.230 0 4 121688.000 108817.230 10.6% - 40s H 0 0 110878.60693 108817.230 1.86% - 40s H 0 0 110500.00000 108817.230 1.52% - 40s H 0 0 109178.00000 108817.230 0.33% - 40s 0 0 108822.533 0 4 109178.000 108822.533 0.33% - 41s 0 2 108823.952 0 4 109178.000 108823.952 0.32% - 42s * 9 5 8 109112.00000 108915.000 0.18% 244 44s 13 5 109008.244 5 2 109112.000 108937.988 0.16% 204 45s * 46 0 10 109039.00000 109039.000 0.0% 139 48s Cutting planes: Gomory: 1 Implied bound: 83 Explored 47 nodes (28531 simplex iterations) in 48.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.090390000000e+05, best bound 1.090390000000e+05, gap 0.0%