Gurobi 5.0.1 (linux64) logging started Sat Nov 17 21:24:50 2012 Optimize a model with 230 rows, 488 columns and 488 nonzeros Model has 458 quadratic constraints Presolve time: 2.65s Presolved: 230 rows, 488 columns, 488 nonzeros Variable types: 458 continuous, 30 integer (30 binary) Root relaxation: objective 0.000000e+00, 15 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 112.0000000 - - - 2s 0 0 0.00000 0 30 112.00000 0.00000 100% - 2s 0 0 0.57692 0 30 112.00000 0.57692 99.5% - 2s 0 0 0.57692 0 30 112.00000 0.57692 99.5% - 2s 0 2 0.57692 0 30 112.00000 0.57692 99.5% - 2s * 48 48 25 110.0000000 8.48077 92.3% 49.1 2s H 54 44 107.0000000 8.52564 92.0% 45.5 2s H 81 68 104.0000000 8.52564 91.8% 48.9 2s H 120 93 99.0000000 14.55556 85.3% 48.5 2s * 123 93 23 97.0000000 14.55556 85.0% 47.5 2s H 295 237 96.0000000 19.66667 79.5% 49.7 3s * 452 291 19 93.0000000 28.15000 69.7% 48.2 3s 672 389 82.60000 28 252 93.00000 32.85315 64.7% 59.2 5s 3647 1380 88.68750 41 246 93.00000 47.75000 48.7% 37.7 10s 7499 2510 91.56250 40 262 93.00000 56.16667 39.6% 31.8 15s 11546 3527 77.64286 51 264 93.00000 61.50000 33.9% 29.3 20s 15855 4378 92.66667 38 230 93.00000 65.33333 29.7% 27.6 25s 20184 5084 90.00000 47 240 93.00000 68.00000 26.9% 26.6 30s 24587 5602 91.07143 58 291 93.00000 70.06250 24.7% 25.9 35s 29063 5964 84.50000 37 262 93.00000 72.00000 22.6% 25.4 40s 33596 6247 85.50000 37 259 93.00000 73.47059 21.0% 25.0 45s 38141 6464 87.50000 43 220 93.00000 75.00000 19.4% 24.6 50s 42300 6521 cutoff 40 93.00000 76.00000 18.3% 24.4 59s 42381 6517 88.00000 34 260 93.00000 76.11765 18.2% 24.4 60s 47027 6434 89.46154 46 252 93.00000 77.33333 16.8% 24.2 65s 51770 6262 cutoff 43 93.00000 78.33333 15.8% 23.9 70s *52349 5887 41 91.0000000 78.50000 13.7% 23.9 70s 52633 5851 89.00000 41 235 91.00000 78.60000 13.6% 23.9 75s 53126 5784 cutoff 44 91.00000 78.76471 13.4% 23.9 80s 57335 5029 cutoff 60 91.00000 80.00000 12.1% 23.9 85s 61694 3991 cutoff 45 91.00000 81.81818 10.1% 23.8 90s 66020 2509 cutoff 41 91.00000 83.85714 7.85% 23.7 95s 69934 233 cutoff 55 91.00000 89.00000 2.20% 23.4 100s Explored 70181 nodes (1636827 simplex iterations) in 100.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.100000000057e+01, best bound 9.100000000057e+01, gap 0.0%