Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:37:59 2012 Optimize a model with 1488 rows, 3906 columns and 8122 nonzeros Presolve removed 30 rows and 1860 columns Presolve time: 0.04s Presolved: 1458 rows, 2046 columns, 6262 nonzeros Variable types: 0 continuous, 2046 integer (2046 binary) Found heuristic solution: objective 12.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 1248 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 (1248 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%