Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:53:01 2012 Optimize a model with 5452 rows, 2256 columns and 18424 nonzeros Presolve removed 987 rows and 0 columns Presolve time: 0.12s Presolved: 4465 rows, 2256 columns, 16027 nonzeros Variable types: 0 continuous, 2256 integer (2256 binary) Found heuristic solution: objective 28.0000000 Root relaxation: objective 3.000000e+00, 8660 iterations, 1.28 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% - 1s Explored 0 nodes (12276 simplex iterations) in 1.80 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%