Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:43:00 2012 Optimize a model with 202 rows, 431 columns and 431 nonzeros Model has 402 quadratic constraints Presolve time: 2.34s Presolved: 202 rows, 431 columns, 431 nonzeros Variable types: 402 continuous, 29 integer (29 binary) Root relaxation: objective 0.000000e+00, 14 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 104.0000000 - - - 2s 0 0 0.00000 0 26 104.00000 0.00000 100% - 2s 0 0 0.47701 0 29 104.00000 0.47701 100% - 2s 0 2 0.48148 0 29 104.00000 0.48148 100% - 2s * 46 43 23 85.0000000 6.47222 92.4% 35.1 2s H 114 87 83.0000000 11.54167 86.1% 36.3 2s * 117 84 19 82.0000000 11.54167 85.9% 35.5 2s H 447 277 80.0000000 23.34783 70.8% 39.3 2s * 448 269 18 79.0000000 23.34783 70.4% 39.2 2s 1005 484 cutoff 55 79.00000 28.50000 63.9% 50.4 5s * 3801 1355 43 78.0000000 43.66667 44.0% 30.5 8s 5335 1712 62.62250 39 255 78.00000 48.52381 37.8% 28.6 10s * 5564 1736 48 77.0000000 49.20000 36.1% 28.4 10s 7469 2032 71.80277 37 258 77.00000 53.00000 31.2% 27.0 15s 11242 2176 cutoff 54 77.00000 59.30000 23.0% 26.0 20s 15605 1745 cutoff 53 77.00000 65.25000 15.3% 25.5 25s Explored 20376 nodes (486517 simplex iterations) in 29.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.700000000000e+01, best bound 7.700000000000e+01, gap 0.0%