Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:48:22 2012 Optimize a model with 299 rows, 231 columns and 976 nonzeros Presolve time: 0.00s Presolved: 299 rows, 231 columns, 976 nonzeros Variable types: 0 continuous, 231 integer (231 binary) Found heuristic solution: objective 62.0000000 Root relaxation: objective 0.000000e+00, 112 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 79 62.00000 0.00000 100% - 0s H 0 0 47.0000000 0.00000 100% - 0s H 0 0 46.0000000 0.00000 100% - 0s 0 0 0.57120 0 80 46.00000 0.57120 98.8% - 0s H 0 0 41.0000000 0.57120 98.6% - 0s 0 0 1.00000 0 82 41.00000 1.00000 97.6% - 0s H 0 0 37.0000000 1.00000 97.3% - 0s 0 0 1.13327 0 82 37.00000 1.13327 96.9% - 0s 0 0 1.13426 0 84 37.00000 1.13426 96.9% - 0s 0 0 1.13426 0 83 37.00000 1.13426 96.9% - 0s 0 2 1.14000 0 83 37.00000 1.14000 96.9% - 0s H 27 27 33.0000000 2.56434 92.2% 40.1 0s * 47 39 29 32.0000000 2.56434 92.0% 27.6 0s H 54 39 30.0000000 2.68045 91.1% 27.5 0s * 75 49 16 26.0000000 2.68045 89.7% 28.1 0s * 270 158 17 25.0000000 6.53606 73.9% 26.1 0s * 274 149 15 23.0000000 6.53606 71.6% 25.9 0s * 815 226 20 22.0000000 11.48603 47.8% 25.0 0s Explored 1460 nodes (34895 simplex iterations) in 1.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%