Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:52 2012 Optimize a model with 125 rows, 79 columns and 389 nonzeros Presolve time: 0.00s Presolved: 125 rows, 79 columns, 389 nonzeros Variable types: 0 continuous, 79 integer (79 binary) Found heuristic solution: objective 29.0000000 Root relaxation: objective 0.000000e+00, 24 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 17 29.00000 0.00000 100% - 0s 0 0 0.52941 0 18 29.00000 0.52941 98.2% - 0s 0 0 1.25785 0 20 29.00000 1.25785 95.7% - 0s 0 0 1.44992 0 20 29.00000 1.44992 95.0% - 0s 0 0 1.45946 0 21 29.00000 1.45946 95.0% - 0s 0 0 1.46582 0 21 29.00000 1.46582 94.9% - 0s 0 2 1.50338 0 21 29.00000 1.50338 94.8% - 0s * 25 17 13 28.0000000 5.75507 79.4% 16.0 0s * 42 28 11 27.0000000 5.98649 77.8% 15.4 0s * 98 42 7 23.0000000 11.95500 48.0% 13.9 0s * 203 28 9 22.0000000 13.70000 37.7% 11.7 0s * 210 24 8 21.0000000 15.75000 25.0% 11.7 0s Cutting planes: Gomory: 3 Mod-K: 2 Explored 252 nodes (2895 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%