Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:21 2013 Optimize a model with 1846 rows, 1716 columns and 6786 nonzeros Presolve removed 13 rows and 0 columns Presolve time: 0.01s Presolved: 1833 rows, 1716 columns, 6773 nonzeros Variable types: 1703 continuous, 13 integer (13 binary) Root relaxation: objective 1.864889e+04, 417 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18648.8905 0 9 - 18648.8905 - - 0s H 0 0 19159.000000 18648.8905 2.66% - 0s * 0 0 0 19153.000000 19153.0000 0.0% - 0s Cutting planes: Gomory: 6 Implied bound: 9 Explored 0 nodes (537 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.915300000000e+04, best bound 1.915300000000e+04, gap 0.0%