Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:38:48 2012 Optimize a model with 28159 rows, 31152 columns and 114750 nonzeros Presolve removed 385 rows and 5458 columns Presolve time: 0.69s Presolved: 27774 rows, 25694 columns, 108098 nonzeros Variable types: 0 continuous, 25694 integer (25694 binary) Found heuristic solution: objective 176.0000000 Root relaxation: objective 3.000000e+00, 18659 iterations, 3.00 seconds Total elapsed time = 14.95s Total elapsed time = 17.96s 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% - 19s Explored 0 nodes (63004 simplex iterations) in 19.04 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%