Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:10:57 2012 Optimize a model with 10287 rows, 16256 columns and 46609 nonzeros Presolve removed 31 rows and 3937 columns Presolve time: 0.19s Presolved: 10256 rows, 12319 columns, 42672 nonzeros Variable types: 0 continuous, 12319 integer (12319 binary) Found heuristic solution: objective 38.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 7456 iterations, 0.15 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 (7456 simplex iterations) in 0.36 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%