Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:08:54 2012 Optimize a model with 293 rows, 818 columns and 818 nonzeros Model has 584 quadratic constraints Presolve removed 0 rows and 16 columns Presolve time: 3.41s Presolved: 293 rows, 802 columns, 802 nonzeros Variable types: 584 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 0 138.0000000 - - - 3s 0 0 0.00000 0 71 138.00000 0.00000 100% - 3s 0 0 0.00000 0 99 138.00000 0.00000 100% - 3s 0 0 0.00000 0 96 138.00000 0.00000 100% - 3s 0 2 0.00000 0 81 138.00000 0.00000 100% - 3s H 54 54 56.0000000 2.00825 96.4% 37.2 3s H 74 74 46.0000000 2.00825 95.6% 30.3 3s * 75 75 54 40.0000000 2.00825 95.0% 31.9 3s H 126 117 34.0000000 3.36000 90.1% 26.0 3s * 163 124 68 32.0000000 3.36000 89.5% 25.3 3s H 216 96 23.0000000 3.58416 84.4% 22.1 3s 652 311 7.49758 15 777 23.00000 6.60116 71.3% 33.0 5s * 942 391 50 21.0000000 7.22340 65.6% 39.3 6s 2465 443 18.03477 32 485 21.00000 13.88889 33.9% 35.5 10s 3174 461 18.86491 34 467 21.00000 15.37657 26.8% 34.9 15s 3984 383 19.74897 31 469 21.00000 16.77202 20.1% 34.6 20s Explored 5427 nodes (176505 simplex iterations) in 24.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%