Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:36:52 2012 Optimize a model with 170 rows, 416 columns and 416 nonzeros Model has 338 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 1.97s Presolved: 170 rows, 415 columns, 415 nonzeros Variable types: 338 continuous, 77 integer (76 binary) Root relaxation: objective 0.000000e+00, 38 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 91.0000000 - - - 1s 0 0 0.00000 0 6 91.00000 0.00000 100% - 1s 0 0 0.00000 0 2 91.00000 0.00000 100% - 1s 0 0 0.00000 0 2 91.00000 0.00000 100% - 1s 0 2 0.00000 0 2 91.00000 0.00000 100% - 1s H 46 46 44.0000000 1.48000 96.6% 37.2 2s * 49 46 34 43.0000000 1.48000 96.6% 35.9 2s * 74 52 21 39.0000000 1.64286 95.8% 33.9 2s H 182 117 37.0000000 5.00000 86.5% 32.9 2s * 182 103 22 35.0000000 5.00000 85.7% 33.0 2s 1789 660 33.72857 48 256 35.00000 15.45312 55.8% 29.9 5s * 5896 2122 45 33.0000000 21.61404 34.5% 21.5 9s 6616 2248 31.98485 42 249 33.00000 22.38462 32.2% 21.3 10s 8470 2511 27.31148 38 256 33.00000 23.42623 29.0% 20.8 15s 11109 2760 26.98438 37 260 33.00000 24.64706 25.3% 20.0 20s 15283 2572 31.50000 39 252 33.00000 26.38889 20.0% 19.3 25s 18994 1813 31.50000 38 214 33.00000 28.08333 14.9% 19.5 30s Explored 22233 nodes (426946 simplex iterations) in 32.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%