Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:28 2012 Optimize a model with 91 rows, 59 columns and 284 nonzeros Presolve time: 0.00s Presolved: 91 rows, 59 columns, 284 nonzeros Variable types: 0 continuous, 59 integer (59 binary) Found heuristic solution: objective 24.0000000 Root relaxation: objective 0.000000e+00, 22 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 14 24.00000 0.00000 100% - 0s 0 0 0.66667 0 16 24.00000 0.66667 97.2% - 0s 0 0 0.91667 0 16 24.00000 0.91667 96.2% - 0s 0 0 1.00000 0 16 24.00000 1.00000 95.8% - 0s 0 0 1.00000 0 18 24.00000 1.00000 95.8% - 0s H 0 0 19.0000000 1.00000 94.7% - 0s 0 0 1.00000 0 16 19.00000 1.00000 94.7% - 0s 0 0 1.00000 0 16 19.00000 1.00000 94.7% - 0s 0 0 1.00000 0 16 19.00000 1.00000 94.7% - 0s H 0 0 18.0000000 1.00000 94.4% - 0s 0 2 1.00000 0 16 18.00000 1.00000 94.4% - 0s * 76 6 5 16.0000000 13.00000 18.8% 9.1 0s Cutting planes: Gomory: 1 Zero half: 5 Explored 92 nodes (863 simplex iterations) in 0.03 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%