Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:30:42 2012 Optimize a model with 10492 rows, 15006 columns and 45994 nonzeros Presolve removed 27 rows and 3294 columns Presolve time: 0.17s Presolved: 10465 rows, 11712 columns, 42700 nonzeros Variable types: 0 continuous, 11712 integer (11712 binary) Found heuristic solution: objective 45.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 8083 iterations, 0.19 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 (8083 simplex iterations) in 0.38 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%