Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:00:41 2013 Optimize a model with 18 rows, 16 columns and 48 nonzeros Presolve removed 6 rows and 6 columns Presolve time: 0.00s Presolved: 12 rows, 10 columns, 36 nonzeros Variable types: 4 continuous, 6 integer (6 binary) Root relaxation: objective 2.280000e+02, 3 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 228.00000 0 1 - 228.00000 - - 0s H 0 0 254.0000000 228.00000 10.2% - 0s * 0 0 0 253.0000000 253.00000 0.0% - 0s Explored 0 nodes (6 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.530000000000e+02, best bound 2.530000000000e+02, gap 0.0%