Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:00:35 2012 Optimize a model with 7326 rows, 12432 columns and 33966 nonzeros Presolve removed 35 rows and 3885 columns Presolve time: 0.13s Presolved: 7291 rows, 8547 columns, 30081 nonzeros Variable types: 0 continuous, 8547 integer (8547 binary) Found heuristic solution: objective 35.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 5305 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 (5305 simplex iterations) in 0.28 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%