Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:36 2012 Optimize a model with 1421 rows, 342 columns and 4516 nonzeros Presolve removed 902 rows and 2 columns Presolve time: 0.03s Presolved: 519 rows, 340 columns, 2766 nonzeros Variable types: 0 continuous, 340 integer (340 binary) Found heuristic solution: objective 18.0000000 Root relaxation: objective 5.000000e+00, 653 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 5.00000 0 27 18.00000 5.00000 72.2% - 0s H 0 0 6.0000000 5.00000 16.7% - 0s H 0 0 5.0000000 5.00000 0.0% - 0s Explored 0 nodes (1794 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%