Gurobi 5.0.1 (linux64) logging started Sun Nov 18 02:13:04 2012 Optimize a model with 213 rows, 487 columns and 487 nonzeros Model has 424 quadratic constraints Presolve time: 2.47s Presolved: 213 rows, 487 columns, 487 nonzeros Variable types: 424 continuous, 63 integer (63 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 0 108.0000000 - - - 2s 0 0 0.00000 0 38 108.00000 0.00000 100% - 2s 0 0 0.16862 0 57 108.00000 0.16862 100% - 2s 0 2 0.18889 0 57 108.00000 0.18889 100% - 2s H 51 51 67.0000000 7.52941 88.8% 51.3 2s * 53 53 30 64.0000000 7.52941 88.2% 51.2 2s H 136 101 58.0000000 8.50000 85.3% 48.8 2s H 379 237 57.0000000 14.00000 75.4% 49.8 3s 706 387 20.04167 29 274 57.00000 20.04167 64.8% 56.0 5s * 2588 1175 58 56.0000000 24.75000 55.8% 33.6 7s H 3275 1497 54.0000000 26.00000 51.9% 30.1 8s 4219 1997 52.54545 51 268 54.00000 27.55319 49.0% 27.8 10s 5367 2524 42.47059 38 291 54.00000 29.00000 46.3% 26.3 15s 7432 3269 40.08000 47 277 54.00000 31.00000 42.6% 24.8 20s 9376 3894 42.00000 42 273 54.00000 32.50000 39.8% 24.1 25s 12529 4905 49.50000 46 269 54.00000 34.94737 35.3% 23.3 30s 15662 5776 38.68000 37 291 54.00000 36.33333 32.7% 22.8 35s 19366 6702 52.81683 44 264 54.00000 37.56757 30.4% 22.1 40s 23345 7586 cutoff 43 54.00000 38.64706 28.4% 21.6 45s 26899 8245 52.00000 45 259 54.00000 39.38462 27.1% 21.2 50s 30911 8936 45.46000 39 284 54.00000 40.07692 25.8% 20.9 55s 34941 9654 49.75510 50 297 54.00000 40.83333 24.4% 20.6 60s 38620 10155 cutoff 52 54.00000 41.37931 23.4% 20.4 65s 40809 10437 52.66857 45 268 54.00000 41.73913 22.7% 20.3 75s 43243 10715 cutoff 44 54.00000 42.00000 22.2% 20.2 80s 46795 10985 52.50000 47 275 54.00000 42.41176 21.5% 20.0 85s 49478 11189 52.90909 49 261 54.00000 42.76667 20.8% 19.9 90s 52772 11430 47.52174 40 267 54.00000 43.06122 20.3% 19.8 95s 56825 11638 45.32000 45 287 54.00000 43.50000 19.4% 19.7 100s 59922 11647 52.04348 48 276 54.00000 43.89189 18.7% 19.6 107s 62152 11669 48.77551 39 299 54.00000 44.00000 18.5% 19.5 110s 65561 11683 49.23529 38 278 54.00000 44.33333 17.9% 19.4 115s 69049 11718 51.60465 51 248 54.00000 44.63636 17.3% 19.3 120s 72577 11641 52.40099 43 264 54.00000 45.00000 16.7% 19.2 125s 75935 11493 52.50000 45 257 54.00000 45.21035 16.3% 19.1 130s 79578 11305 48.50000 46 265 54.00000 45.50000 15.7% 19.0 135s 82721 11081 51.20408 50 289 54.00000 45.77451 15.2% 18.9 140s 84887 10887 52.85106 54 272 54.00000 46.00000 14.8% 18.9 145s 88710 10469 infeasible 48 54.00000 46.25000 14.4% 18.8 150s 92352 10018 52.48980 46 305 54.00000 46.56611 13.8% 18.8 155s 96507 9427 cutoff 51 54.00000 47.00000 13.0% 18.7 160s 99283 8952 52.00000 41 273 54.00000 47.20930 12.6% 18.7 165s 103400 8165 48.61364 43 265 54.00000 47.64286 11.8% 18.6 170s 107063 7273 52.52745 47 272 54.00000 48.00000 11.1% 18.6 175s 111055 6075 52.50000 49 259 54.00000 48.57143 10.1% 18.5 180s 114621 4755 52.98515 44 261 54.00000 49.09655 9.08% 18.5 185s 116652 3824 52.44912 47 265 54.00000 49.50000 8.33% 18.5 190s 120440 1724 cutoff 45 54.00000 50.57895 6.34% 18.4 195s Explored 123080 nodes (2242136 simplex iterations) in 197.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.400000000006e+01, best bound 5.400000000006e+01, gap 0.0%