Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:07 2013 Optimize a model with 7614 rows, 7344 columns and 29214 nonzeros Presolve removed 27 rows and 0 columns Presolve time: 0.03s Presolved: 7587 rows, 7344 columns, 29187 nonzeros Variable types: 7317 continuous, 27 integer (27 binary) Root relaxation: objective 2.711303e+04, 1476 iterations, 0.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 27113.0336 0 25 - 27113.0336 - - 0s H 0 0 29935.000000 27113.0336 9.43% - 0s * 0 0 0 28672.000000 28672.0000 0.0% - 0s Cutting planes: Gomory: 20 Implied bound: 24 Explored 0 nodes (1832 simplex iterations) in 0.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.867200000000e+04, best bound 2.867200000000e+04, gap 0.0%