Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:05:03 2012 Optimize a model with 165 rows, 412 columns and 412 nonzeros Model has 328 quadratic constraints Presolve time: 1.91s Presolved: 165 rows, 412 columns, 412 nonzeros Variable types: 328 continuous, 84 integer (84 binary) Root relaxation: objective 0.000000e+00, 42 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 83.0000000 - - - 1s 0 0 0.00000 0 3 83.00000 0.00000 100% - 1s 0 0 0.00000 0 2 83.00000 0.00000 100% - 1s 0 0 0.00000 0 64 83.00000 0.00000 100% - 1s 0 2 0.00000 0 62 83.00000 0.00000 100% - 1s H 53 53 36.0000000 3.07143 91.5% 28.4 2s * 53 53 33 35.0000000 3.07143 91.2% 28.6 2s * 54 52 34 33.0000000 3.07143 90.7% 28.3 2s * 134 111 24 31.0000000 6.42259 79.3% 23.5 2s * 179 137 20 30.0000000 6.50000 78.3% 24.3 2s H 241 159 29.0000000 6.60000 77.2% 26.6 2s * 257 130 15 26.0000000 6.64198 74.5% 26.6 2s H 502 191 25.0000000 12.06349 51.7% 26.4 2s 2156 515 24.02899 37 246 25.00000 15.00000 40.0% 26.7 5s * 4070 651 37 24.0000000 18.00000 25.0% 22.6 6s Explored 5942 nodes (125532 simplex iterations) in 8.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%