Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:36 2012 Optimize a model with 48 rows, 32 columns and 96 nonzeros Presolve removed 27 rows and 15 columns Presolve time: 0.00s Presolved: 21 rows, 17 columns, 43 nonzeros Variable types: 0 continuous, 17 integer (17 binary) Found heuristic solution: objective 17.0000000 Root relaxation: cutoff, 13 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 17.00000 17.99998 5.88% - 0s Explored 0 nodes (13 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%