Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:58:02 2012 Optimize a model with 187 rows, 455 columns and 455 nonzeros Model has 372 quadratic constraints Presolve time: 2.17s Presolved: 187 rows, 455 columns, 455 nonzeros Variable types: 372 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 81.0000000 - - - 2s 0 0 0.00000 0 46 81.00000 0.00000 100% - 2s 0 0 0.13194 0 80 81.00000 0.13194 100% - 2s 0 2 0.13492 0 80 81.00000 0.13492 100% - 2s H 48 48 38.0000000 4.55556 88.0% 32.0 2s 1258 593 37.03175 37 269 38.00000 15.05882 60.4% 38.5 5s * 3209 1313 45 37.0000000 18.57971 49.8% 26.7 7s 5261 2022 25.75000 34 261 37.00000 21.23077 42.6% 23.8 10s 5519 2097 27.33766 36 274 37.00000 21.50000 41.9% 23.6 15s H 5668 2040 36.0000000 21.57143 40.1% 23.5 16s 7577 2423 31.05634 35 270 36.00000 23.43478 34.9% 22.8 20s 10073 2713 32.00000 45 274 36.00000 25.20000 30.0% 22.0 25s 12935 2917 28.00000 41 254 36.00000 26.67391 25.9% 21.3 30s 17097 2907 cutoff 41 36.00000 28.65385 20.4% 20.5 35s 19837 2653 34.94595 48 273 36.00000 29.66667 17.6% 20.1 40s 24244 1463 34.52174 44 261 36.00000 31.65217 12.1% 19.8 45s Explored 26611 nodes (517242 simplex iterations) in 47.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.600000000000e+01, best bound 3.600000000000e+01, gap 0.0%