Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:04:17 2012 Optimize a model with 176 rows, 434 columns and 434 nonzeros Model has 350 quadratic constraints Presolve removed 0 rows and 1 columns Presolve time: 2.04s Presolved: 176 rows, 433 columns, 433 nonzeros Variable types: 350 continuous, 83 integer (82 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 0 102.0000000 - - - 2s 0 0 0.00000 0 43 102.00000 0.00000 100% - 2s 0 0 0.02794 0 80 102.00000 0.02794 100% - 2s 0 2 0.05882 0 80 102.00000 0.05882 100% - 2s H 54 54 46.0000000 3.98039 91.3% 32.5 2s * 63 59 38 41.0000000 3.98039 90.3% 29.9 2s H 101 81 37.0000000 4.00000 89.2% 30.0 2s * 333 205 19 36.0000000 8.54943 76.3% 29.8 2s H 404 228 35.0000000 9.64000 72.5% 30.6 2s * 405 214 19 34.0000000 9.64000 71.6% 30.5 2s 1414 599 33.00000 43 172 34.00000 13.09804 61.5% 35.8 5s 6021 2445 32.50000 46 234 34.00000 19.50000 42.6% 22.9 10s * 8636 3018 45 33.0000000 21.32203 35.4% 21.4 12s 10615 3259 27.72464 34 264 33.00000 22.50000 31.8% 20.9 15s 11172 3332 26.97183 38 254 33.00000 22.84211 30.8% 20.7 20s H11200 3024 32.0000000 22.85000 28.6% 20.7 20s 14059 2964 29.40299 36 257 32.00000 24.66129 22.9% 20.4 25s 17569 2361 cutoff 36 32.00000 26.71429 16.5% 20.2 30s Explored 22105 nodes (432479 simplex iterations) in 34.26 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%