Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:27:20 2013 Optimize a model with 2047 rows, 529 columns and 6348 nonzeros Presolve removed 688 rows and 291 columns Presolve time: 0.02s Presolved: 1359 rows, 238 columns, 4235 nonzeros Variable types: 8 continuous, 230 integer (230 binary) Found heuristic solution: objective 11388.000000 Root relaxation: objective 9.964161e+03, 720 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 9964.16071 0 5 11388.0000 9964.16071 12.5% - 0s H 0 0 9968.0000000 9964.16071 0.04% - 0s 0 0 9966.87065 0 9 9968.00000 9966.87065 0.01% - 0s 0 0 9966.87065 0 3 9968.00000 9966.87065 0.01% - 0s 0 0 cutoff 0 9968.00000 9967.00997 0.01% - 0s Cutting planes: Gomory: 1 Cover: 2 Implied bound: 6 MIR: 4 Explored 0 nodes (748 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.968000000000e+03, best bound 9.968000000000e+03, gap 0.0%