Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:46:13 2012 Optimize a model with 186 rows, 451 columns and 451 nonzeros Model has 370 quadratic constraints Presolve time: 2.16s Presolved: 186 rows, 451 columns, 451 nonzeros Variable types: 370 continuous, 81 integer (81 binary) Root relaxation: objective 0.000000e+00, 40 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 95.0000000 - - - 2s 0 0 0.00000 0 2 95.00000 0.00000 100% - 2s 0 0 0.00000 0 61 95.00000 0.00000 100% - 2s 0 0 0.00000 0 49 95.00000 0.00000 100% - 2s 0 2 0.00000 0 49 95.00000 0.00000 100% - 2s H 46 46 46.0000000 3.54545 92.3% 41.0 2s * 46 46 29 45.0000000 3.54545 92.1% 41.6 2s * 92 70 30 42.0000000 3.54545 91.6% 32.5 2s H 250 176 41.0000000 10.08333 75.4% 33.7 2s 610 338 15.23810 16 394 41.00000 15.23810 62.8% 36.0 5s * 1066 497 49 40.0000000 15.23810 61.9% 39.5 6s H 2130 744 38.0000000 21.11765 44.4% 29.6 7s H 3052 980 37.0000000 23.33333 36.9% 26.4 8s 3302 1038 35.13462 44 219 37.00000 23.70588 35.9% 25.8 10s 5452 1348 33.05085 44 256 37.00000 26.86441 27.4% 23.1 15s 8456 1445 33.41176 46 260 37.00000 29.50000 20.3% 21.4 20s 12025 917 35.51111 41 202 37.00000 32.09756 13.2% 20.7 25s Explored 13719 nodes (279441 simplex iterations) in 27.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%