Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:53:03 2012 Optimize a model with 28799 rows, 32580 columns and 118078 nonzeros Presolve removed 722 rows and 2 columns Presolve time: 0.71s Presolved: 28257 rows, 32578 columns, 148366 nonzeros Variable types: 0 continuous, 32578 integer (32578 binary) Found heuristic solution: objective 180.0000000 Root relaxation: objective 3.000000e+00, 24119 iterations, 3.48 seconds Total elapsed time = 11.64s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 13s Explored 0 nodes (62388 simplex iterations) in 13.52 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%