Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:09:32 2012 Optimize a model with 283 rows, 790 columns and 790 nonzeros Model has 564 quadratic constraints Presolve removed 0 rows and 17 columns Presolve time: 3.33s Presolved: 283 rows, 773 columns, 773 nonzeros Variable types: 564 continuous, 209 integer (208 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 134.0000000 - - - 3s 0 0 0.00000 0 77 134.00000 0.00000 100% - 3s 0 0 0.00000 0 2 134.00000 0.00000 100% - 3s 0 0 0.00000 0 2 134.00000 0.00000 100% - 3s 0 2 0.00000 0 157 134.00000 0.00000 100% - 3s H 43 43 33.0000000 2.16866 93.4% 45.7 3s * 52 49 38 29.0000000 2.16866 92.5% 46.5 3s H 114 65 27.0000000 2.44444 90.9% 32.2 3s H 157 95 26.0000000 2.44444 90.6% 29.0 3s 603 344 20.12477 11 478 26.00000 7.54758 71.0% 30.3 5s 2110 814 25.10265 38 438 26.00000 11.47305 55.9% 37.0 10s 4300 1752 14.52577 38 474 26.00000 13.68750 47.4% 33.5 15s 6545 2691 24.57233 44 413 26.00000 15.00000 42.3% 32.0 20s 8855 3538 25.31840 47 407 26.00000 15.90323 38.8% 31.0 25s 11121 4254 23.19444 39 436 26.00000 16.57505 36.2% 30.8 30s 13361 4951 25.42857 47 305 26.00000 17.00000 34.6% 30.7 35s *13454 4442 54 25.0000000 17.03299 31.9% 30.7 35s 13968 4515 23.56442 44 441 25.00000 17.20833 31.2% 30.5 40s 14314 4555 19.04734 38 434 25.00000 17.34862 30.6% 30.6 45s 14689 4594 23.18718 45 447 25.00000 17.44828 30.2% 30.4 50s 15068 4619 22.00000 40 420 25.00000 17.52708 29.9% 30.7 55s *15300 3892 48 24.0000000 17.56322 26.8% 30.6 57s 15762 3906 23.00000 38 427 24.00000 17.69325 26.3% 30.6 60s 17513 3917 cutoff 45 24.00000 18.00000 25.0% 31.1 65s 19635 3846 22.34180 42 450 24.00000 18.50000 22.9% 30.9 70s 21463 3691 21.12739 38 456 24.00000 18.90924 21.2% 30.7 75s 23115 3519 20.37255 37 434 24.00000 19.13889 20.3% 31.1 80s 25275 3187 cutoff 40 24.00000 19.66667 18.1% 31.1 85s 27371 2762 22.78353 42 448 24.00000 20.05094 16.5% 31.6 90s 28788 2386 22.05747 37 461 24.00000 20.45308 14.8% 31.4 95s 30621 1741 22.88387 41 487 24.00000 21.00000 12.5% 32.0 100s Explored 33248 nodes (1050825 simplex iterations) in 104.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.400000000008e+01, best bound 2.400000000008e+01, gap 0.0%