Gurobi 5.0.1 (linux64) logging started Tue Apr 23 22:02:07 2013 Optimize a model with 1350 rows, 1300 columns and 5050 nonzeros Presolve removed 75 rows and 1 columns Presolve time: 0.01s Presolved: 1275 rows, 1299 columns, 4925 nonzeros Variable types: 1275 continuous, 24 integer (24 binary) Root relaxation: objective 8.305087e+05, 106 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 830508.657 0 5 - 830508.657 - - 0s H 0 0 840813.31250 830508.657 1.23% - 0s 0 0 837017.230 0 3 840813.312 837017.230 0.45% - 0s 0 0 837218.802 0 3 840813.312 837218.802 0.43% - 0s H 0 0 838499.28750 837218.802 0.15% - 0s Cutting planes: Gomory: 1 Implied bound: 3 Explored 0 nodes (115 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.384992875000e+05, best bound 8.384992875000e+05, gap 0.0%