Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:36 2012 Optimize a model with 39 rows, 32 columns and 78 nonzeros Presolve removed 26 rows and 21 columns Presolve time: 0.00s Presolved: 13 rows, 11 columns, 26 nonzeros Variable types: 0 continuous, 11 integer (11 binary) Found heuristic solution: objective 16.0000000 Root relaxation: cutoff, 11 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 16.00000 16.99998 6.25% - 0s Explored 0 nodes (11 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%