Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:33:09 2012 Optimize a model with 10081 rows, 5112 columns and 35001 nonzeros Presolve removed 712 rows and 2 columns Presolve time: 0.41s Presolved: 9369 rows, 5110 columns, 32962 nonzeros Variable types: 0 continuous, 5110 integer (5110 binary) Found heuristic solution: objective 71.0000000 Root relaxation: objective 3.000000e+00, 7464 iterations, 1.02 seconds Total elapsed time = 6.08s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 232 71.00000 3.00000 95.8% - 7s H 0 0 24.0000000 3.00000 87.5% - 7s H 0 0 4.0000000 3.00000 25.0% - 7s H 0 0 3.0000000 3.00000 0.0% - 7s Explored 0 nodes (41367 simplex iterations) in 7.69 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%