Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:38:26 2012 Optimize a model with 1474 rows, 4556 columns and 8710 nonzeros Presolve removed 35 rows and 2345 columns Presolve time: 0.04s Presolved: 1439 rows, 2211 columns, 6365 nonzeros Variable types: 0 continuous, 2211 integer (2211 binary) Found heuristic solution: objective 11.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 1292 iterations, 0.01 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 (1292 simplex iterations) in 0.05 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%