Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:51:05 2012 Optimize a model with 184 rows, 448 columns and 448 nonzeros Model has 366 quadratic constraints Presolve time: 2.13s Presolved: 184 rows, 448 columns, 448 nonzeros Variable types: 366 continuous, 82 integer (82 binary) Root relaxation: objective 0.000000e+00, 41 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 98.0000000 - - - 2s 0 0 0.00000 0 2 98.00000 0.00000 100% - 2s 0 0 0.00000 0 71 98.00000 0.00000 100% - 2s 0 0 0.00000 0 60 98.00000 0.00000 100% - 2s 0 2 0.00000 0 58 98.00000 0.00000 100% - 2s H 46 46 38.0000000 5.42857 85.7% 38.4 2s H 217 154 35.0000000 5.90909 83.1% 34.0 2s H 226 157 34.0000000 5.90909 82.6% 33.4 2s * 229 133 20 32.0000000 5.90909 81.5% 33.1 2s 1490 379 27.26471 28 271 32.00000 17.98276 43.8% 34.4 5s 6229 626 30.31579 32 227 32.00000 27.26316 14.8% 22.5 10s Explored 7999 nodes (171237 simplex iterations) in 11.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.200000000000e+01, best bound 3.200000000000e+01, gap 0.0%