Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:08:06 2012 Optimize a model with 8584 rows, 13572 columns and 38860 nonzeros Presolve removed 28 rows and 3248 columns Presolve time: 0.16s Presolved: 8556 rows, 10324 columns, 35612 nonzeros Variable types: 0 continuous, 10324 integer (10324 binary) Found heuristic solution: objective 39.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 6403 iterations, 0.13 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 (6403 simplex iterations) in 0.31 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%