Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:45:34 2012 Optimize a model with 13482 rows, 19460 columns and 59212 nonzeros Presolve removed 280 rows and 2 columns Presolve time: 0.23s Presolved: 13341 rows, 19458 columns, 77648 nonzeros Variable types: 0 continuous, 19458 integer (19458 binary) Found heuristic solution: objective 139.0000000 Root relaxation: objective 3.000000e+00, 7954 iterations, 0.35 seconds 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% - 3s Explored 0 nodes (21132 simplex iterations) in 3.35 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%