Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:07:19 2012 Optimize a model with 2415 rows, 462 columns and 7623 nonzeros Presolve removed 1407 rows and 0 columns Presolve time: 0.04s Presolved: 1008 rows, 462 columns, 5586 nonzeros Variable types: 0 continuous, 462 integer (462 binary) Found heuristic solution: objective 14.0000000 Root relaxation: objective 6.000000e+00, 973 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 6.00000 0 23 14.00000 6.00000 57.1% - 0s H 0 0 7.0000000 6.00000 14.3% - 0s H 0 0 6.0000000 6.00000 0.0% - 0s Explored 0 nodes (1882 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%