Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:59 2012 Optimize a model with 207 rows, 124 columns and 639 nonzeros Presolve time: 0.00s Presolved: 207 rows, 124 columns, 639 nonzeros Variable types: 0 continuous, 124 integer (124 binary) Found heuristic solution: objective 47.0000000 Root relaxation: objective 0.000000e+00, 42 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 21 47.00000 0.00000 100% - 0s H 0 0 44.0000000 0.00000 100% - 0s 0 0 1.02334 0 30 44.00000 1.02334 97.7% - 0s 0 0 1.05952 0 31 44.00000 1.05952 97.6% - 0s 0 0 1.09425 0 31 44.00000 1.09425 97.5% - 0s 0 0 1.12897 0 31 44.00000 1.12897 97.4% - 0s 0 0 1.12897 0 31 44.00000 1.12897 97.4% - 0s 0 0 1.12897 0 31 44.00000 1.12897 97.4% - 0s 0 0 1.12897 0 31 44.00000 1.12897 97.4% - 0s 0 2 1.21331 0 31 44.00000 1.21331 97.2% - 0s * 23 14 12 43.0000000 6.60000 84.7% 24.1 0s * 77 39 9 42.0000000 12.00000 71.4% 23.8 0s H 242 67 40.0000000 24.00000 40.0% 22.0 0s H 264 58 38.0000000 24.00000 36.8% 21.7 0s Cutting planes: Gomory: 1 Mod-K: 5 Explored 439 nodes (8664 simplex iterations) in 0.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%