Gurobi 5.0.1 (linux64) logging started Sun Nov 18 02:33:14 2012 Optimize a model with 202 rows, 466 columns and 466 nonzeros Model has 402 quadratic constraints Presolve time: 2.35s Presolved: 202 rows, 466 columns, 466 nonzeros Variable types: 402 continuous, 64 integer (64 binary) Root relaxation: objective 0.000000e+00, 32 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 94.0000000 - - - 2s 0 0 0.00000 0 44 94.00000 0.00000 100% - 2s 0 0 0.25000 0 60 94.00000 0.25000 100% - 2s 0 2 0.26933 0 60 94.00000 0.26933 100% - 2s H 51 51 60.0000000 5.63636 90.6% 34.1 2s * 64 63 38 56.0000000 5.63636 89.9% 31.0 2s H 102 85 52.0000000 6.08824 88.3% 33.5 2s 885 533 43.52830 39 287 52.00000 14.66667 71.8% 52.5 5s * 1176 613 41 51.0000000 16.16667 68.3% 48.4 5s * 1784 684 46 48.0000000 19.50000 59.4% 39.7 6s 3412 1269 39.34545 41 275 48.00000 25.54386 46.8% 32.0 10s 4822 1705 36.50000 35 276 48.00000 28.40000 40.8% 29.1 15s 7379 2298 43.90566 42 271 48.00000 31.56604 34.2% 26.6 20s 9643 2569 46.95000 43 252 48.00000 33.17241 30.9% 25.6 25s 12112 2763 45.11111 42 287 48.00000 34.95612 27.2% 24.7 30s 14552 2864 39.80392 38 271 48.00000 36.54167 23.9% 24.2 35s 18294 2773 44.50000 48 257 48.00000 38.50000 19.8% 23.6 40s 21997 2331 infeasible 44 48.00000 40.35714 15.9% 23.2 45s 26017 910 46.93182 41 262 48.00000 43.33333 9.72% 23.0 50s Explored 27358 nodes (621083 simplex iterations) in 51.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.800000000000e+01, best bound 4.800000000000e+01, gap 0.0%