Gurobi 5.0.1 (linux64) logging started Sun Nov 18 09:03:56 2012 Optimize a model with 613 rows, 546 columns and 2076 nonzeros Presolve removed 0 rows and 15 columns Presolve time: 0.00s Presolved: 613 rows, 531 columns, 2061 nonzeros Variable types: 0 continuous, 531 integer (530 binary) Found heuristic solution: objective 106.0000000 Root relaxation: objective 0.000000e+00, 291 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 0 218 106.00000 0.00000 100% - 0s H 0 0 90.0000000 0.00000 100% - 0s H 0 0 88.0000000 0.00000 100% - 0s 0 0 0.56246 0 219 88.00000 0.56246 99.4% - 0s H 0 0 70.0000000 0.56246 99.2% - 0s 0 0 0.81936 0 222 70.00000 0.81936 98.8% - 0s H 0 0 68.0000000 0.81936 98.8% - 0s 0 0 0.82152 0 222 68.00000 0.82152 98.8% - 0s 0 0 0.82152 0 222 68.00000 0.82152 98.8% - 0s H 0 0 66.0000000 0.82152 98.8% - 0s H 0 0 53.0000000 0.82152 98.4% - 0s 0 2 0.84025 0 222 53.00000 0.84025 98.4% - 0s * 46 44 26 28.0000000 1.00000 96.4% 37.4 0s * 120 79 31 27.0000000 4.21311 84.4% 35.1 0s * 237 140 16 26.0000000 5.58480 78.5% 38.2 0s 2421 673 cutoff 26 26.00000 14.68681 43.5% 31.4 5s 5152 1072 cutoff 30 26.00000 17.90374 31.1% 28.3 10s * 5735 919 40 24.0000000 18.20690 24.1% 28.2 11s 7866 386 22.97006 28 207 24.00000 21.25000 11.5% 28.3 15s Explored 8327 nodes (232095 simplex iterations) in 15.59 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%