Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:14:34 2012 Optimize a model with 9545 rows, 5550 columns and 33816 nonzeros Presolve removed 1112 rows and 2 columns Presolve time: 0.39s Presolved: 8507 rows, 5548 columns, 36400 nonzeros Variable types: 0 continuous, 5548 integer (5548 binary) Found heuristic solution: objective 74.0000000 Root relaxation: objective 3.000000e+00, 5949 iterations, 0.74 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 144 74.00000 3.00000 95.9% - 5s H 0 0 3.0000000 3.00000 0.0% - 5s Explored 0 nodes (32947 simplex iterations) in 5.81 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%