Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:36:25 2012 Optimize a model with 18 rows, 90 columns and 108 nonzeros Presolve removed 7 rows and 63 columns Presolve time: 0.00s Presolved: 11 rows, 27 columns, 45 nonzeros Variable types: 0 continuous, 27 integer (27 binary) Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 13 iterations, 0.00 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 (13 simplex iterations) in 0.00 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%