Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:00 2013 Optimize a model with 7587 rows, 7317 columns and 29187 nonzeros Presolve removed 392 rows and 0 columns Presolve time: 0.04s Presolved: 7195 rows, 7317 columns, 28403 nonzeros Variable types: 7290 continuous, 27 integer (27 binary) Root relaxation: objective 3.259184e+04, 1378 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 32591.8364 0 2 - 32591.8364 - - 0s H 0 0 32618.000000 32591.8364 0.08% - 0s H 0 0 32606.000000 32591.8364 0.04% - 0s 0 0 32594.0335 0 4 32606.0000 32594.0335 0.04% - 0s 0 0 32594.0704 0 4 32606.0000 32594.0704 0.04% - 0s 0 0 32605.8182 0 1 32606.0000 32605.8182 0.00% - 0s Cutting planes: Gomory: 1 Flow cover: 4 Explored 0 nodes (1415 simplex iterations) in 0.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.260600000000e+04, best bound 3.260581818182e+04, gap 0.0006%