Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:59:52 2012 Optimize a model with 52079 rows, 44310 columns and 199498 nonzeros Presolve removed 422 rows and 2 columns Presolve time: 1.32s Presolved: 51867 rows, 44308 columns, 242056 nonzeros Variable types: 0 continuous, 44308 integer (44308 binary) Found heuristic solution: objective 210.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: infeasible, 354 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 infeasible 0 3.00000 2.00000 33.3% - 1s Explored 0 nodes (354 simplex iterations) in 1.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%