Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:53 2012 Optimize a model with 73 rows, 74 columns and 254 nonzeros Presolve removed 0 rows and 5 columns Presolve time: 0.00s Presolved: 73 rows, 69 columns, 249 nonzeros Variable types: 0 continuous, 69 integer (68 binary) Found heuristic solution: objective 14.0000000 Root relaxation: objective 0.000000e+00, 47 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 29 14.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.23810 0 31 8.00000 0.23810 97.0% - 0s 0 0 0.82090 0 37 8.00000 0.82090 89.7% - 0s 0 0 0.83367 0 35 8.00000 0.83367 89.6% - 0s 0 0 0.83367 0 35 8.00000 0.83367 89.6% - 0s 0 2 0.93032 0 35 8.00000 0.93032 88.4% - 0s * 5 5 4 4.0000000 1.60292 59.9% 15.4 0s * 8 6 5 3.0000000 1.60292 46.6% 12.5 0s Cutting planes: Gomory: 4 Mod-K: 1 Explored 16 nodes (333 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%