Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:59:00 2012 Optimize a model with 189 rows, 459 columns and 459 nonzeros Model has 376 quadratic constraints Presolve time: 2.19s Presolved: 189 rows, 459 columns, 459 nonzeros Variable types: 376 continuous, 83 integer (83 binary) Root relaxation: objective 0.000000e+00, 41 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 92.0000000 - - - 2s 0 0 0.00000 0 42 92.00000 0.00000 100% - 2s 0 0 0.02674 0 77 92.00000 0.02674 100% - 2s 0 2 0.05882 0 77 92.00000 0.05882 100% - 2s H 54 54 51.0000000 5.00000 90.2% 35.9 2s * 61 60 36 47.0000000 5.00000 89.4% 35.3 2s H 97 77 39.0000000 5.00000 87.2% 36.0 2s 1150 595 29.08696 41 263 39.00000 12.90741 66.9% 37.6 5s * 2620 1023 45 37.0000000 18.95385 48.8% 28.0 6s * 2791 989 44 36.0000000 19.35385 46.2% 27.4 7s H 3119 1025 35.0000000 20.02941 42.8% 26.6 7s H 3986 1144 34.0000000 21.99000 35.3% 25.1 8s 4744 1186 24.25000 31 279 34.00000 23.46667 31.0% 24.7 10s 5727 1233 31.29231 35 268 34.00000 24.80000 27.1% 23.7 15s 8133 965 31.44643 32 234 34.00000 28.14286 17.2% 23.0 20s Explored 10006 nodes (222141 simplex iterations) in 24.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%