Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:01:17 2012 Optimize a model with 12599 rows, 16002 columns and 53170 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.19s Presolved: 12723 rows, 16000 columns, 68846 nonzeros Variable types: 0 continuous, 16000 integer (16000 binary) Found heuristic solution: objective 126.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 243 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 176 3.00000 2.00000 33.3% - 0s Explored 0 nodes (391 simplex iterations) in 0.28 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%