Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:46:45 2012 Optimize a model with 12027 rows, 15500 columns and 50962 nonzeros Presolve removed 399 rows and 3102 columns Presolve time: 0.23s Presolved: 11628 rows, 12398 columns, 46806 nonzeros Variable types: 0 continuous, 12398 integer (12398 binary) Found heuristic solution: objective 124.0000000 Root relaxation: objective 3.000000e+00, 9358 iterations, 0.66 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 80 124.00000 3.00000 97.6% - 3s H 0 0 3.0000000 3.00000 0.0% - 3s Explored 0 nodes (23581 simplex iterations) in 3.45 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%