Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:12:59 2012 Optimize a model with 33293 rows, 34782 columns and 133732 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.73s Presolved: 33477 rows, 34780 columns, 167970 nonzeros Variable types: 0 continuous, 34780 integer (34780 binary) Found heuristic solution: objective 186.0000000 Root relaxation: objective 2.000000e+00, 21283 iterations, 1.58 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 284 186.00000 2.00000 98.9% - 5s H 0 0 3.0000000 2.00000 33.3% - 5s Cutting planes: Gomory: 1 Explored 0 nodes (69171 simplex iterations) in 5.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 2.000000000000e+00, gap 33.3333%