Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:46:47 2012 Optimize a model with 14381 rows, 20022 columns and 62461 nonzeros Presolve removed 38 rows and 5078 columns Presolve time: 0.27s Presolved: 14343 rows, 14944 columns, 57181 nonzeros Variable types: 0 continuous, 14944 integer (14944 binary) Found heuristic solution: objective 141.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 222 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 0 144 3.00000 2.00000 33.3% - 0s Explored 0 nodes (387 simplex iterations) in 0.34 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%