Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:11:40 2012 Optimize a model with 187 rows, 430 columns and 430 nonzeros Model has 372 quadratic constraints Presolve time: 2.16s Presolved: 187 rows, 430 columns, 430 nonzeros Variable types: 372 continuous, 58 integer (58 binary) Root relaxation: objective 0.000000e+00, 29 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 100.0000000 - - - 2s 0 0 0.00000 0 29 100.00000 0.00000 100% - 2s 0 0 0.00000 0 42 100.00000 0.00000 100% - 2s 0 0 0.00000 0 38 100.00000 0.00000 100% - 2s 0 2 0.00000 0 38 100.00000 0.00000 100% - 2s H 32 32 76.0000000 8.27273 89.1% 42.9 2s H 46 46 56.0000000 8.27273 85.2% 38.5 2s * 46 46 26 55.0000000 8.27273 85.0% 38.8 2s H 119 95 52.0000000 10.41935 80.0% 37.5 2s H 506 270 49.0000000 19.71347 59.8% 36.8 2s * 507 249 20 47.0000000 19.71347 58.1% 36.7 2s 1382 535 21.47170 32 255 47.00000 21.33775 54.6% 39.2 5s 5801 1980 43.15385 37 250 47.00000 30.44444 35.2% 25.2 10s 10602 2851 40.00000 38 256 47.00000 34.57143 26.4% 22.3 15s 15620 3287 41.68085 44 254 47.00000 37.39130 20.4% 20.9 20s 20756 3207 cutoff 35 47.00000 39.60000 15.7% 20.1 25s 26026 2314 46.68182 40 248 47.00000 41.77778 11.1% 19.6 30s *27710 1084 46 45.0000000 42.66667 5.19% 19.5 31s Explored 28822 nodes (548344 simplex iterations) in 32.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.500000000000e+01, best bound 4.500000000000e+01, gap 0.0%