Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:34:10 2012 Optimize a model with 11609 rows, 16770 columns and 50953 nonzeros Presolve removed 31 rows and 3743 columns Presolve time: 0.20s Presolved: 11578 rows, 13027 columns, 47032 nonzeros Variable types: 0 continuous, 13027 integer (13027 binary) Found heuristic solution: objective 129.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 196 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 126 3.00000 2.00000 33.3% - 0s Explored 0 nodes (356 simplex iterations) in 0.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%