Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:41:00 2012 Optimize a model with 201 rows, 429 columns and 429 nonzeros Model has 400 quadratic constraints Presolve time: 2.33s Presolved: 201 rows, 429 columns, 429 nonzeros Variable types: 400 continuous, 29 integer (29 binary) Root relaxation: objective 0.000000e+00, 14 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 105.0000000 - - - 2s 0 0 0.00000 0 26 105.00000 0.00000 100% - 2s 0 0 0.47701 0 29 105.00000 0.47701 100% - 2s 0 2 0.48667 0 29 105.00000 0.48667 100% - 2s * 44 44 23 91.0000000 5.47222 94.0% 41.3 2s * 46 44 25 87.0000000 5.47222 93.7% 39.5 2s * 175 145 21 86.0000000 12.16000 85.9% 37.8 2s * 227 187 24 85.0000000 14.12500 83.4% 37.7 2s * 304 237 18 84.0000000 17.73810 78.9% 38.1 2s * 324 234 20 83.0000000 17.73810 78.6% 36.8 2s 958 524 70.50000 41 227 83.00000 27.47337 66.9% 49.9 5s * 3908 1630 41 82.0000000 41.20000 49.8% 30.3 8s H 4500 1759 81.0000000 43.08333 46.8% 29.6 8s 5395 1963 cutoff 42 81.00000 44.84211 44.6% 28.5 10s * 5660 1964 46 80.0000000 45.40000 43.2% 28.4 10s H 5780 1956 79.0000000 45.79241 42.0% 28.3 11s H 6056 1972 78.0000000 46.14286 40.8% 28.0 13s 6140 1986 68.23810 46 242 78.00000 46.75000 40.1% 28.0 15s 8006 2275 75.60000 56 245 78.00000 51.50000 34.0% 27.4 20s 12401 2678 71.50000 33 236 78.00000 58.00000 25.6% 26.0 25s 15799 2716 75.41176 37 219 78.00000 61.00000 21.8% 25.2 30s 19259 2613 cutoff 49 78.00000 63.87352 18.1% 24.6 35s 24007 2033 72.35294 37 233 78.00000 67.33333 13.7% 24.0 40s Explored 29426 nodes (676898 simplex iterations) in 44.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.800000000000e+01, best bound 7.800000000000e+01, gap 0.0%