Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:27:52 2012 Optimize a model with 171 rows, 415 columns and 415 nonzeros Model has 340 quadratic constraints Presolve time: 1.98s Presolved: 171 rows, 415 columns, 415 nonzeros Variable types: 340 continuous, 75 integer (75 binary) Root relaxation: objective 0.000000e+00, 37 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 99.0000000 - - - 1s 0 0 0.00000 0 21 99.00000 0.00000 100% - 1s 0 0 0.00000 0 74 99.00000 0.00000 100% - 1s 0 0 0.00000 0 69 99.00000 0.00000 100% - 2s 0 2 0.00000 0 69 99.00000 0.00000 100% - 2s H 52 52 51.0000000 4.43643 91.3% 36.2 2s * 55 55 29 43.0000000 4.43643 89.7% 35.4 2s * 95 85 23 42.0000000 4.46797 89.4% 35.4 2s * 194 154 22 40.0000000 7.52174 81.2% 37.7 2s * 310 227 27 39.0000000 8.12903 79.2% 37.7 2s * 431 261 19 37.0000000 10.02857 72.9% 35.0 2s * 434 250 18 36.0000000 10.02857 72.1% 34.9 2s 1653 660 25.08955 24 256 36.00000 17.00000 52.8% 33.4 5s 6560 2516 31.12903 31 255 36.00000 23.53030 34.6% 21.2 10s 11824 3814 28.00000 30 257 36.00000 26.00000 27.8% 18.9 15s *11896 3589 37 35.0000000 26.00000 25.7% 18.9 15s 14249 3702 29.00000 30 230 35.00000 27.00000 22.9% 18.5 20s 14596 3713 31.39062 30 246 35.00000 27.12903 22.5% 18.4 25s 18259 3620 29.29851 31 262 35.00000 28.42857 18.8% 18.0 30s 22983 2736 33.78462 39 255 35.00000 30.20000 13.7% 17.9 35s Explored 27896 nodes (491432 simplex iterations) in 39.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.500000000000e+01, best bound 3.500000000000e+01, gap 0.0%