Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:46:43 2012 Optimize a model with 10415 rows, 15500 columns and 46126 nonzeros Presolve removed 32 rows and 3722 columns Presolve time: 0.17s Presolved: 10383 rows, 11778 columns, 42238 nonzeros Variable types: 0 continuous, 11778 integer (11778 binary) Found heuristic solution: objective 124.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 173 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 60 3.00000 2.00000 33.3% - 0s Explored 0 nodes (282 simplex iterations) in 0.22 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%