Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:33:09 2012 Optimize a model with 8052 rows, 15006 columns and 38674 nonzeros Presolve removed 40 rows and 4880 columns Presolve time: 0.16s Presolved: 8012 rows, 10126 columns, 33794 nonzeros Variable types: 0 continuous, 10126 integer (10126 binary) Found heuristic solution: objective 35.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 6832 iterations, 0.18 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 2.00000 1.00000 50.0% - 0s Explored 0 nodes (6832 simplex iterations) in 0.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%