Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:25 2013 Optimize a model with 1028 rows, 3044 columns and 8082 nonzeros Presolve removed 963 rows and 2844 columns Presolve time: 0.09s Presolved: 65 rows, 200 columns, 400 nonzeros Variable types: 141 continuous, 59 integer (59 binary) Root relaxation: objective 5.737611e+03, 5 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 5737.61109 0 1 - 5737.61109 - - 0s 0 0 5753.90425 0 2 - 5753.90425 - - 0s 0 0 5753.90432 0 2 - 5753.90432 - - 0s 0 0 5753.91282 0 2 - 5753.91282 - - 0s 0 0 5753.92137 0 2 - 5753.92137 - - 0s 0 0 5753.92991 0 2 - 5753.92991 - - 0s H 0 0 5753.9380151 5753.92991 0.00% - 0s Cutting planes: Cover: 1 Implied bound: 1 Flow cover: 1 Explored 0 nodes (32 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.753938015074e+03, best bound 5.753929906938e+03, gap 0.0001%