Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:30 2012 Optimize a model with 1393 rows, 306 columns and 4401 nonzeros Presolve removed 852 rows and 2 columns Presolve time: 0.03s Presolved: 558 rows, 304 columns, 3164 nonzeros Variable types: 0 continuous, 304 integer (304 binary) Found heuristic solution: objective 17.0000000 Root relaxation: objective 6.000000e+00, 1015 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 6.0000000 6.00000 0.0% - 0s Explored 0 nodes (2041 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%