Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:48:36 2012 Optimize a model with 55 rows, 34 columns and 110 nonzeros Presolve removed 28 rows and 15 columns Presolve time: 0.00s Presolved: 27 rows, 19 columns, 55 nonzeros Variable types: 0 continuous, 19 integer (19 binary) Found heuristic solution: objective 16.0000000 Root relaxation: objective 1.700000e+01, 18 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.00000 0 14 16.00000 17.00000 6.25% - 0s Explored 0 nodes (42 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%