Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:16:21 2013 Optimize a model with 583 rows, 28143 columns and 56233 nonzeros Presolve time: 0.04s Presolved: 583 rows, 28143 columns, 56233 nonzeros Variable types: 28090 continuous, 53 integer (53 binary) Root relaxation: objective 7.214194e+04, 1911 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 72141.9404 0 5 - 72141.9404 - - 0s H 0 0 73305.000000 72141.9404 1.59% - 0s 0 0 72431.2540 0 3 73305.0000 72431.2540 1.19% - 0s 0 0 72499.2912 0 4 73305.0000 72499.2912 1.10% - 0s 0 0 72511.1174 0 3 73305.0000 72511.1174 1.08% - 0s 0 0 72515.7872 0 2 73305.0000 72515.7872 1.08% - 0s H 0 0 73084.115307 72515.7872 0.78% - 0s H 0 0 72816.000000 72515.7872 0.41% - 0s 0 0 72520.9262 0 2 72816.0000 72520.9262 0.41% - 0s 0 0 72521.5346 0 2 72816.0000 72521.5346 0.40% - 0s 0 0 72521.5346 0 2 72816.0000 72521.5346 0.40% - 0s 0 0 72521.5346 0 2 72816.0000 72521.5346 0.40% - 0s H 0 0 72569.000000 72521.5346 0.07% - 0s 0 0 72521.5346 0 3 72569.0000 72521.5346 0.07% - 0s 0 0 72521.5346 0 2 72569.0000 72521.5346 0.07% - 0s 0 0 72521.5346 0 2 72569.0000 72521.5346 0.07% - 0s 0 0 72521.5346 0 1 72569.0000 72521.5346 0.07% - 0s 0 0 72521.5346 0 2 72569.0000 72521.5346 0.07% - 0s 0 0 72522.0157 0 1 72569.0000 72522.0157 0.06% - 0s 0 0 72522.0157 0 1 72569.0000 72522.0157 0.06% - 0s 0 0 72522.0157 0 1 72569.0000 72522.0157 0.06% - 0s 0 0 72533.3000 0 2 72569.0000 72533.3000 0.05% - 1s 0 2 72563.0000 0 2 72569.0000 72563.0000 0.01% - 1s Cutting planes: Implied bound: 48 Explored 1 nodes (3408 simplex iterations) in 1.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.256900000000e+04, best bound 7.256300000000e+04, gap 0.0083%