Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:29:08 2012 Optimize a model with 247 rows, 175 columns and 790 nonzeros Presolve time: 0.00s Presolved: 247 rows, 175 columns, 790 nonzeros Variable types: 0 continuous, 175 integer (175 binary) Found heuristic solution: objective 56.0000000 Root relaxation: objective 0.000000e+00, 97 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 52 56.00000 0.00000 100% - 0s H 0 0 49.0000000 0.00000 100% - 0s H 0 0 45.0000000 0.00000 100% - 0s 0 0 0.71739 0 54 45.00000 0.71739 98.4% - 0s H 0 0 43.0000000 0.71739 98.3% - 0s 0 0 0.86957 0 54 43.00000 0.86957 98.0% - 0s 0 0 0.92029 0 59 43.00000 0.92029 97.9% - 0s 0 0 0.97826 0 54 43.00000 0.97826 97.7% - 0s 0 0 0.99509 0 75 43.00000 0.99509 97.7% - 0s 0 0 1.02174 0 54 43.00000 1.02174 97.6% - 0s 0 0 1.02174 0 54 43.00000 1.02174 97.6% - 0s 0 0 1.02174 0 54 43.00000 1.02174 97.6% - 0s H 0 0 41.0000000 1.02174 97.5% - 0s H 0 0 38.0000000 1.02174 97.3% - 0s 0 2 1.04531 0 54 38.00000 1.04531 97.2% - 0s * 34 32 22 34.0000000 4.10725 87.9% 28.6 0s * 62 43 19 30.0000000 4.14526 86.2% 22.9 0s * 227 112 16 29.0000000 10.30435 64.5% 18.2 0s H 272 110 28.0000000 10.55072 62.3% 17.3 0s * 281 106 13 27.0000000 10.81988 59.9% 17.3 0s H 1195 103 26.0000000 16.71429 35.7% 19.5 0s Explored 1705 nodes (34233 simplex iterations) in 0.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.600000000000e+01, best bound 2.600000000000e+01, gap 0.0%