Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:47:38 2012 Optimize a model with 247 rows, 176 columns and 791 nonzeros Presolve time: 0.00s Presolved: 247 rows, 176 columns, 791 nonzeros Variable types: 0 continuous, 176 integer (176 binary) Found heuristic solution: objective 52.0000000 Root relaxation: objective 0.000000e+00, 83 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 53 52.00000 0.00000 100% - 0s H 0 0 46.0000000 0.00000 100% - 0s H 0 0 43.0000000 0.00000 100% - 0s 0 0 0.87587 0 55 43.00000 0.87587 98.0% - 0s H 0 0 39.0000000 0.87587 97.8% - 0s 0 0 0.88350 0 55 39.00000 0.88350 97.7% - 0s 0 2 0.90153 0 55 39.00000 0.90153 97.7% - 0s * 27 24 17 29.0000000 4.18596 85.6% 20.6 0s * 51 35 17 28.0000000 4.19158 85.0% 19.5 0s * 78 44 14 27.0000000 8.62201 68.1% 20.6 0s * 1151 120 11 26.0000000 19.14286 26.4% 17.7 0s * 1419 71 15 25.0000000 21.00000 16.0% 17.1 0s H 1479 28 24.0000000 22.05882 8.09% 17.1 0s Cutting planes: Gomory: 1 Mod-K: 5 Explored 1510 nodes (25841 simplex iterations) in 0.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%