Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:33:16 2012 Optimize a model with 38963 rows, 36672 columns and 152607 nonzeros Presolve removed 384 rows and 2 columns Presolve time: 0.88s Presolved: 38770 rows, 36670 columns, 187729 nonzeros Variable types: 0 continuous, 36670 integer (36670 binary) Found heuristic solution: objective 191.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 25689 3.0000711e+00 1.356667e+01 0.000000e+00 5s 27568 3.0000000e+00 0.000000e+00 0.000000e+00 7s Root relaxation: objective 3.000000e+00, 27568 iterations, 6.58 seconds Total elapsed time = 28.16s 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% - 28s Explored 0 nodes (63986 simplex iterations) in 28.63 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%