Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:13 2012 Optimize a model with 111 rows, 90 columns and 365 nonzeros Presolve time: 0.00s Presolved: 111 rows, 90 columns, 365 nonzeros Variable types: 0 continuous, 90 integer (90 binary) Found heuristic solution: objective 21.0000000 Root relaxation: objective 0.000000e+00, 50 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 34 21.00000 0.00000 100% - 0s H 0 0 18.0000000 0.00000 100% - 0s 0 0 0.49275 0 36 18.00000 0.49275 97.3% - 0s 0 0 1.01106 0 39 18.00000 1.01106 94.4% - 0s H 0 0 17.0000000 1.01106 94.1% - 0s 0 0 1.03844 0 40 17.00000 1.03844 93.9% - 0s H 0 0 16.0000000 1.03844 93.5% - 0s 0 0 1.06381 0 43 16.00000 1.06381 93.4% - 0s 0 2 1.09438 0 43 16.00000 1.09438 93.2% - 0s * 10 10 7 10.0000000 3.63212 63.7% 23.6 0s * 44 1 6 9.0000000 6.79439 24.5% 15.1 0s Cutting planes: Gomory: 4 Zero half: 3 Mod-K: 1 Explored 46 nodes (899 simplex iterations) in 0.06 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%