Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:55 2012 Optimize a model with 103 rows, 84 columns and 339 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 103 rows, 83 columns, 338 nonzeros Variable types: 0 continuous, 83 integer (82 binary) Found heuristic solution: objective 24.0000000 Root relaxation: objective 0.000000e+00, 48 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 31 24.00000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s 0 0 0.48387 0 32 13.00000 0.48387 96.3% - 0s 0 0 1.00000 0 33 13.00000 1.00000 92.3% - 0s 0 0 1.21059 0 36 13.00000 1.21059 90.7% - 0s 0 0 1.28750 0 38 13.00000 1.28750 90.1% - 0s H 0 0 12.0000000 1.28750 89.3% - 0s 0 0 1.28750 0 38 12.00000 1.28750 89.3% - 0s H 0 0 11.0000000 1.28750 88.3% - 0s H 0 0 10.0000000 1.28750 87.1% - 0s 0 2 1.34373 0 38 10.00000 1.34373 86.6% - 0s * 10 8 7 9.0000000 3.29545 63.4% 19.0 0s Cutting planes: Gomory: 4 Mod-K: 1 Explored 40 nodes (701 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%