Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:54:39 2012 Optimize a model with 15503 rows, 23256 columns and 69006 nonzeros Presolve removed 346 rows and 6082 columns Presolve time: 0.32s Presolved: 15157 rows, 17174 columns, 61966 nonzeros Variable types: 0 continuous, 17174 integer (17174 binary) Found heuristic solution: objective 152.0000000 Root relaxation: objective 3.000000e+00, 10320 iterations, 0.65 seconds Total elapsed time = 5.17s 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% - 5s Explored 0 nodes (30975 simplex iterations) in 5.61 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%