Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:11:20 2012 Optimize a model with 9359 rows, 13806 columns and 41299 nonzeros Presolve removed 35 rows and 3863 columns Presolve time: 0.15s Presolved: 9324 rows, 9943 columns, 37278 nonzeros Variable types: 0 continuous, 9943 integer (9943 binary) Found heuristic solution: objective 117.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 174 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 0 124 3.00000 2.00000 33.3% - 0s Explored 0 nodes (291 simplex iterations) in 0.20 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%