Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:16:35 2012 Optimize a model with 294 rows, 821 columns and 821 nonzeros Model has 586 quadratic constraints Presolve removed 0 rows and 17 columns Presolve time: 3.42s Presolved: 294 rows, 804 columns, 804 nonzeros Variable types: 586 continuous, 218 integer (217 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 152.0000000 - - - 3s 0 0 0.00000 0 111 152.00000 0.00000 100% - 3s 0 0 0.00000 0 2 152.00000 0.00000 100% - 3s 0 0 0.00000 0 2 152.00000 0.00000 100% - 3s 0 2 0.00000 0 2 152.00000 0.00000 100% - 3s H 54 54 35.0000000 0.39153 98.9% 45.1 3s H 54 54 33.0000000 0.39153 98.8% 45.1 3s * 75 75 51 32.0000000 0.39153 98.8% 37.9 3s * 78 72 51 31.0000000 0.39153 98.7% 36.7 3s H 135 103 27.0000000 0.42640 98.4% 32.0 3s * 318 202 27 26.0000000 2.64948 89.8% 36.4 4s 625 357 19.43850 20 440 26.00000 7.00000 73.1% 39.8 5s * 650 352 33 24.0000000 7.00000 70.8% 42.8 5s 801 418 19.80000 24 2 24.00000 7.00000 70.8% 55.7 14s 1011 471 cutoff 34 24.00000 9.64706 59.8% 54.4 15s 2623 320 21.08556 30 477 24.00000 17.91111 25.4% 40.5 20s 3189 281 21.25654 30 497 24.00000 18.73016 22.0% 38.4 25s 4424 26 cutoff 34 24.00000 22.32692 6.97% 36.2 30s Explored 4451 nodes (163063 simplex iterations) in 30.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%