Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:01:46 2012 Optimize a model with 155 rows, 333 columns and 333 nonzeros Model has 308 quadratic constraints Presolve time: 1.79s Presolved: 155 rows, 333 columns, 333 nonzeros Variable types: 308 continuous, 25 integer (25 binary) Root relaxation: objective 0.000000e+00, 12 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 87.0000000 - - - 1s 0 0 0.00000 0 24 87.00000 0.00000 100% - 1s 0 0 0.47667 0 25 87.00000 0.47667 99.5% - 1s 0 2 0.49561 0 25 87.00000 0.49561 99.4% - 1s * 39 39 21 71.0000000 6.91667 90.3% 35.6 1s H 71 60 69.0000000 6.97549 89.9% 32.2 1s * 72 53 18 67.0000000 6.97549 89.6% 32.3 1s * 75 52 18 66.0000000 6.97549 89.4% 31.2 1s H 81 53 64.0000000 10.13095 84.2% 32.2 1s * 96 66 14 60.0000000 10.13095 83.1% 33.6 1s * 865 352 51 59.0000000 27.46667 53.4% 37.3 3s 2871 636 56.80939 45 166 59.00000 39.29412 33.4% 25.7 5s * 4869 605 42 58.0000000 47.33333 18.4% 22.9 8s Explored 6234 nodes (135864 simplex iterations) in 9.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.800000000000e+01, best bound 5.800000000000e+01, gap 0.0%