Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:34:18 2012 Optimize a model with 11609 rows, 16770 columns and 50953 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.18s Presolved: 11736 rows, 16768 columns, 67414 nonzeros Variable types: 0 continuous, 16768 integer (16768 binary) Found heuristic solution: objective 129.0000000 Root relaxation: objective 2.000000e+00, 8123 iterations, 0.31 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 138 129.00000 2.00000 98.4% - 1s H 0 0 81.0000000 2.00000 97.5% - 1s H 0 0 3.0000000 2.00000 33.3% - 1s Explored 0 nodes (28581 simplex iterations) in 1.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 2.000000000000e+00, gap 33.3333%