Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:10 2012 Optimize a model with 223 rows, 169 columns and 724 nonzeros Presolve time: 0.00s Presolved: 223 rows, 169 columns, 724 nonzeros Variable types: 0 continuous, 169 integer (169 binary) Found heuristic solution: objective 53.0000000 Root relaxation: objective 0.000000e+00, 95 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 57 53.00000 0.00000 100% - 0s H 0 0 50.0000000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s 0 0 0.57310 0 58 38.00000 0.57310 98.5% - 0s H 0 0 36.0000000 0.57310 98.4% - 0s 0 0 1.16667 0 60 36.00000 1.16667 96.8% - 0s H 0 0 35.0000000 1.16667 96.7% - 0s 0 0 1.16667 0 60 35.00000 1.16667 96.7% - 0s 0 0 1.16667 0 59 35.00000 1.16667 96.7% - 0s H 0 0 33.0000000 1.16667 96.5% - 0s 0 2 1.16667 0 59 33.00000 1.16667 96.5% - 0s * 22 18 15 20.0000000 3.05556 84.7% 30.7 0s * 36 24 8 19.0000000 3.06250 83.9% 30.2 0s * 42 21 10 18.0000000 3.06250 83.0% 28.7 0s * 99 39 8 17.0000000 6.39078 62.4% 30.5 0s Cutting planes: Gomory: 2 Explored 286 nodes (6868 simplex iterations) in 0.23 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%