Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:51:01 2012 Optimize a model with 284 rows, 805 columns and 805 nonzeros Model has 566 quadratic constraints Presolve removed 0 rows and 28 columns Presolve time: 3.33s Presolved: 284 rows, 777 columns, 777 nonzeros Variable types: 566 continuous, 211 integer (210 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 0 130.0000000 - - - 3s 0 0 0.00000 0 51 130.00000 0.00000 100% - 3s 0 0 0.00000 0 51 130.00000 0.00000 100% - 3s 0 0 0.00000 0 186 130.00000 0.00000 100% - 3s 0 2 0.00000 0 185 130.00000 0.00000 100% - 3s H 27 27 121.0000000 2.15385 98.2% 45.5 3s H 54 54 47.0000000 2.15385 95.4% 33.6 3s * 58 58 31 24.0000000 2.15385 91.0% 34.7 3s H 162 109 22.0000000 5.00000 77.3% 30.7 3s 601 259 14.93939 7 186 22.00000 9.31646 57.7% 29.9 8s 680 300 14.88268 18 667 22.00000 9.31646 57.7% 41.8 10s 2829 824 17.95556 36 451 22.00000 13.89655 36.8% 32.1 15s 5349 1203 cutoff 39 22.00000 16.14286 26.6% 29.1 20s 8131 1341 cutoff 37 22.00000 17.61628 19.9% 26.7 25s 10864 1078 20.68345 35 401 22.00000 18.91194 14.0% 26.3 30s 13987 297 21.90865 41 363 22.00000 20.60000 6.36% 25.0 35s Explored 14569 nodes (360247 simplex iterations) in 35.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.199999999890e+01, best bound 2.199999999890e+01, gap 0.0%