Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:12:29 2012 Optimize a model with 1891 rows, 1892 columns and 7351 nonzeros Presolve removed 217 rows and 2 columns Presolve time: 0.10s Presolved: 1717 rows, 1890 columns, 8606 nonzeros Variable types: 0 continuous, 1890 integer (1890 binary) Found heuristic solution: objective 43.0000000 Root relaxation: objective 3.000000e+00, 1343 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 12 43.00000 3.00000 93.0% - 0s H 0 0 3.0000000 3.00000 0.0% - 0s Explored 0 nodes (3648 simplex iterations) in 0.23 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%