Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:41:14 2013 Optimize a model with 935 rows, 72335 columns and 144585 nonzeros Presolve time: 0.11s Presolved: 935 rows, 72335 columns, 144585 nonzeros Variable types: 72250 continuous, 85 integer (85 binary) Root relaxation: objective 1.106833e+05, 2899 iterations, 0.11 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 110683.318 0 12 - 110683.318 - - 0s H 0 0 123691.00000 110683.318 10.5% - 0s H 0 0 111456.00000 110683.318 0.69% - 0s 0 0 111126.154 0 10 111456.000 111126.154 0.30% - 0s 0 0 111132.147 0 6 111456.000 111132.147 0.29% - 0s 0 0 111132.147 0 12 111456.000 111132.147 0.29% - 1s 0 0 111132.147 0 7 111456.000 111132.147 0.29% - 1s 0 0 111132.147 0 6 111456.000 111132.147 0.29% - 1s 0 0 111133.907 0 3 111456.000 111133.907 0.29% - 1s 0 0 111137.241 0 3 111456.000 111137.241 0.29% - 1s 0 0 111139.197 0 3 111456.000 111139.197 0.28% - 1s 0 0 111139.197 0 3 111456.000 111139.197 0.28% - 1s 0 0 111139.197 0 3 111456.000 111139.197 0.28% - 1s H 0 0 111220.00000 111139.197 0.07% - 2s 0 1 111144.141 0 3 111220.000 111144.141 0.07% - 2s H 10 1 111218.94737 111154.547 0.06% 55.7 2s H 11 2 111209.00000 111156.321 0.05% 55.2 2s * 13 2 7 111172.00000 111172.000 0.0% 49.5 2s Cutting planes: Implied bound: 103 Flow cover: 8 Explored 14 nodes (6952 simplex iterations) in 2.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.111720000000e+05, best bound 1.111720000000e+05, gap 0.0%