Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:32:14 2012 Optimize a model with 194 rows, 446 columns and 446 nonzeros Model has 386 quadratic constraints Presolve time: 2.25s Presolved: 194 rows, 446 columns, 446 nonzeros Variable types: 386 continuous, 60 integer (60 binary) Root relaxation: objective 0.000000e+00, 30 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 96.0000000 - - - 2s 0 0 0.00000 0 34 96.00000 0.00000 100% - 2s 0 0 0.06867 0 52 96.00000 0.06867 100% - 2s 0 2 0.07974 0 52 96.00000 0.07974 100% - 2s H 54 54 65.0000000 7.25000 88.8% 32.8 2s * 63 63 37 60.0000000 7.25000 87.9% 29.8 2s * 65 61 36 58.0000000 7.25000 87.5% 29.0 2s H 145 115 54.0000000 8.66552 84.0% 31.3 2s 623 419 27.37255 20 227 54.00000 14.09091 73.9% 39.6 5s * 1405 678 38 53.0000000 15.19048 71.3% 39.0 6s H 2589 1171 52.0000000 21.55556 58.5% 31.5 8s 3571 1703 42.68750 32 268 52.00000 24.63830 52.6% 28.9 10s 4831 2328 50.45946 47 270 52.00000 27.20000 47.7% 26.7 15s 7136 3311 37.16667 33 267 52.00000 29.29787 43.7% 24.3 20s 9338 4154 43.04167 39 263 52.00000 31.02439 40.3% 23.5 25s 13239 5290 46.00000 41 248 52.00000 33.20000 36.2% 22.7 30s 15868 5965 40.16667 31 276 52.00000 34.36364 33.9% 22.2 35s 19416 6790 cutoff 37 52.00000 35.66667 31.4% 21.7 40s *21843 7155 40 51.0000000 36.41176 28.6% 21.2 42s 22648 7284 46.91304 41 263 51.00000 36.71429 28.0% 21.1 45s 25703 7731 46.37500 38 267 51.00000 37.56522 26.3% 20.9 50s 29967 8205 44.36364 57 274 51.00000 38.59259 24.3% 20.6 55s *32451 8134 36 50.0000000 39.07692 21.8% 20.4 59s 32773 8134 47.42424 40 201 50.00000 39.18182 21.6% 20.5 60s 36618 8203 43.37500 42 252 50.00000 40.14286 19.7% 20.4 65s 38986 8192 44.29167 35 276 50.00000 40.71429 18.6% 20.3 70s 42003 8079 47.57895 43 249 50.00000 41.41667 17.2% 20.2 83s 43575 7968 47.81818 34 249 50.00000 41.73333 16.5% 20.2 85s 46603 7642 cutoff 48 50.00000 42.41176 15.2% 20.1 90s 50542 7001 45.72973 39 218 50.00000 43.19048 13.6% 20.1 95s 55025 5858 45.22222 33 258 50.00000 44.20000 11.6% 20.1 100s 59540 4222 cutoff 38 50.00000 45.28571 9.43% 20.0 105s 65155 1010 cutoff 46 50.00000 47.62500 4.75% 19.7 110s Explored 66325 nodes (1290894 simplex iterations) in 110.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000005e+01, best bound 5.000000000005e+01, gap 0.0%