Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:20:01 2012 Optimize a model with 6695 rows, 3906 columns and 23682 nonzeros Presolve removed 808 rows and 2 columns Presolve time: 0.20s Presolved: 5949 rows, 3904 columns, 25476 nonzeros Variable types: 0 continuous, 3904 integer (3904 binary) Found heuristic solution: objective 62.0000000 Root relaxation: objective 3.000000e+00, 4600 iterations, 0.40 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 70 62.00000 3.00000 95.2% - 1s H 0 0 20.0000000 3.00000 85.0% - 1s H 0 0 4.0000000 3.00000 25.0% - 1s H 0 0 3.0000000 3.00000 0.0% - 1s Explored 0 nodes (14283 simplex iterations) in 1.60 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%