Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:52:19 2012 Optimize a model with 233 rows, 164 columns and 744 nonzeros Presolve time: 0.00s Presolved: 233 rows, 164 columns, 744 nonzeros Variable types: 0 continuous, 164 integer (164 binary) Found heuristic solution: objective 47.0000000 Root relaxation: objective 0.000000e+00, 70 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 48 47.00000 0.00000 100% - 0s H 0 0 46.0000000 0.00000 100% - 0s 0 0 0.85714 0 49 46.00000 0.85714 98.1% - 0s H 0 0 42.0000000 0.85714 98.0% - 0s 0 0 1.27083 0 51 42.00000 1.27083 97.0% - 0s H 0 0 40.0000000 1.27083 96.8% - 0s 0 0 1.86749 0 52 40.00000 1.86749 95.3% - 0s 0 0 1.87629 0 53 40.00000 1.87629 95.3% - 0s H 0 0 39.0000000 1.87629 95.2% - 0s H 0 0 37.0000000 1.87629 94.9% - 0s 0 2 1.89421 0 53 37.00000 1.89421 94.9% - 0s * 42 41 27 36.0000000 4.89853 86.4% 20.5 0s H 54 39 33.0000000 4.94442 85.0% 21.8 0s * 64 40 14 26.0000000 4.94442 81.0% 22.7 0s * 169 94 10 25.0000000 7.60149 69.6% 27.8 0s H 191 85 23.0000000 8.98898 60.9% 27.6 0s Cutting planes: Gomory: 3 Mod-K: 2 Explored 567 nodes (15731 simplex iterations) in 0.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%