Gurobi 5.0.1 (linux64) logging started Sun Nov 18 02:10:50 2012 Optimize a model with 184 rows, 429 columns and 429 nonzeros Model has 366 quadratic constraints Presolve time: 2.14s Presolved: 184 rows, 429 columns, 429 nonzeros Variable types: 366 continuous, 63 integer (63 binary) Root relaxation: objective 0.000000e+00, 31 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 100.0000000 - - - 2s 0 0 0.00000 0 31 100.00000 0.00000 100% - 2s 0 0 0.00000 0 56 100.00000 0.00000 100% - 2s 0 0 0.00000 0 56 100.00000 0.00000 100% - 2s 0 2 0.00000 0 56 100.00000 0.00000 100% - 2s H 47 47 53.0000000 5.88099 88.9% 36.9 2s * 145 113 28 50.0000000 6.54612 86.9% 31.4 2s H 324 221 47.0000000 8.00000 83.0% 38.5 2s 1196 579 20.52632 28 254 47.00000 16.27119 65.4% 40.3 5s * 4594 2009 44 46.0000000 25.96326 43.6% 24.7 8s 5755 2461 38.55769 38 262 46.00000 27.07273 41.1% 23.4 10s * 5865 2359 42 45.0000000 27.23256 39.5% 23.3 10s H 5978 2268 44.0000000 27.34615 37.8% 23.2 10s 7060 2569 36.78723 34 226 44.00000 28.50000 35.2% 22.3 15s 9518 3099 39.25000 39 244 44.00000 30.10000 31.6% 21.2 20s 13786 3780 42.97826 38 259 44.00000 32.20000 26.8% 20.0 25s 18375 4187 38.95416 39 248 44.00000 33.81579 23.1% 19.3 30s 22704 4225 39.18182 40 225 44.00000 35.20000 20.0% 18.9 35s 27646 3874 cutoff 34 44.00000 36.73684 16.5% 18.6 40s 32677 2902 40.57143 36 232 44.00000 38.50000 12.5% 18.5 45s Explored 37629 nodes (686508 simplex iterations) in 49.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.400000000005e+01, best bound 4.400000000005e+01, gap 0.0%