Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:15:45 2012 Optimize a model with 15677 rows, 18090 columns and 64452 nonzeros Presolve removed 564 rows and 3486 columns Presolve time: 0.31s Presolved: 15113 rows, 14604 columns, 59402 nonzeros Variable types: 0 continuous, 14604 integer (14604 binary) Found heuristic solution: objective 134.0000000 Root relaxation: objective 3.000000e+00, 7558 iterations, 0.31 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% - 0s Explored 0 nodes (7558 simplex iterations) in 0.66 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%