Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:38 2013 Optimize a model with 6550 rows, 6300 columns and 25050 nonzeros Presolve removed 25 rows and 0 columns Presolve time: 0.03s Presolved: 6525 rows, 6300 columns, 25025 nonzeros Variable types: 6275 continuous, 25 integer (25 binary) Root relaxation: objective 2.824780e+04, 1412 iterations, 0.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 28247.7962 0 18 - 28247.7962 - - 0s H 0 0 30950.000000 28247.7962 8.73% - 0s 0 0 30738.6577 0 4 30950.0000 30738.6577 0.68% - 0s H 0 0 30761.000000 30738.6577 0.07% - 0s 0 0 30745.5714 0 1 30761.0000 30745.5714 0.05% - 0s Cutting planes: Implied bound: 19 Explored 0 nodes (1845 simplex iterations) in 0.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.076100000000e+04, best bound 3.076100000000e+04, gap 0.0%