Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:53:10 2012 Optimize a model with 179 rows, 418 columns and 418 nonzeros Model has 356 quadratic constraints Presolve time: 2.08s Presolved: 179 rows, 418 columns, 418 nonzeros Variable types: 356 continuous, 62 integer (62 binary) Root relaxation: objective 0.000000e+00, 31 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 84.0000000 - - - 2s 0 0 0.00000 0 26 84.00000 0.00000 100% - 2s 0 0 0.00000 0 28 84.00000 0.00000 100% - 2s 0 0 0.00000 0 28 84.00000 0.00000 100% - 2s 0 2 0.00000 0 28 84.00000 0.00000 100% - 2s * 42 40 29 53.0000000 4.15385 92.2% 38.6 2s H 122 98 50.0000000 7.16022 85.7% 33.2 2s H 204 163 49.0000000 8.00000 83.7% 31.4 2s * 207 151 23 47.0000000 8.00000 83.0% 31.7 2s H 1092 556 46.0000000 16.03422 65.1% 38.6 4s H 1436 595 45.0000000 16.77419 62.7% 34.0 4s 1623 652 cutoff 40 45.00000 18.53125 58.8% 32.7 5s H 2590 1132 44.0000000 22.00000 50.0% 27.6 6s H 3298 1404 43.0000000 23.37931 45.6% 25.6 7s 4656 1918 41.70414 47 219 43.00000 25.16000 41.5% 23.6 10s 7265 2823 37.44344 45 239 43.00000 27.57500 35.9% 21.4 15s 10581 3646 33.70414 39 235 43.00000 29.72544 30.9% 20.2 20s 14889 4369 39.67568 41 239 43.00000 31.46429 26.8% 19.1 25s *18669 4573 45 42.0000000 32.68750 22.2% 18.6 28s H18672 4320 41.0000000 32.68750 20.3% 18.6 28s 18701 4322 35.20414 36 234 41.00000 32.71429 20.2% 18.6 30s 22217 3907 35.57447 37 228 41.00000 34.37209 16.2% 18.5 35s 26162 2847 37.65957 39 244 41.00000 36.18704 11.7% 18.4 40s Explored 30473 nodes (543702 simplex iterations) in 44.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.100000000000e+01, best bound 4.100000000000e+01, gap 0.0%