Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:52:01 2012 Optimize a model with 32579 rows, 32580 columns and 129418 nonzeros Presolve removed 1262 rows and 2 columns Presolve time: 0.83s Presolved: 31497 rows, 32578 columns, 158410 nonzeros Variable types: 0 continuous, 32578 integer (32578 binary) Found heuristic solution: objective 180.0000000 Root relaxation: objective 3.000000e+00, 21929 iterations, 4.16 seconds Total elapsed time = 16.82s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 46 180.00000 3.00000 98.3% - 18s H 0 0 3.0000000 3.00000 0.0% - 18s Explored 0 nodes (65157 simplex iterations) in 18.16 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%