Optimize a model with 52 rows, 1326 columns and 2652 nonzeros Presolve time: 0.00s Presolved: 52 rows, 1326 columns, 2652 nonzeros Variable types: 0 continuous, 1326 integer (1326 binary) Root relaxation: objective 7.163000e+03, 75 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 7163.00000 0 6 - 7163.00000 - - 0s * 0 0 0 7542.0000000 7542.00000 0.0% - 0s Cutting planes: Zero half: 2 Explored 0 nodes (87 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.542000000000e+03, best bound 7.542000000000e+03, gap 0.0% Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:42:25 2012