Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:07:09 2012 Optimize a model with 200 rows, 482 columns and 482 nonzeros Model has 398 quadratic constraints Presolve time: 2.32s Presolved: 200 rows, 482 columns, 482 nonzeros Variable types: 398 continuous, 84 integer (84 binary) Root relaxation: objective 0.000000e+00, 42 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 40 96.00000 0.00000 100% - 2s 0 0 0.00000 0 40 96.00000 0.00000 100% - 2s 0 0 0.00000 0 76 96.00000 0.00000 100% - 2s 0 2 0.00000 0 76 96.00000 0.00000 100% - 2s H 51 51 49.0000000 7.27273 85.2% 46.4 2s * 56 56 30 46.0000000 7.27273 84.2% 44.7 2s * 58 54 30 45.0000000 7.27273 83.8% 43.6 2s * 427 241 18 42.0000000 12.23293 70.9% 36.1 2s * 447 212 20 38.0000000 12.98113 65.8% 36.0 2s 893 387 31.33333 31 280 38.00000 16.39474 56.9% 45.3 5s 4796 1368 36.75714 32 291 38.00000 26.50000 30.3% 25.6 10s 8994 1839 cutoff 34 38.00000 30.00000 21.1% 22.7 15s 13493 1696 37.50000 34 280 38.00000 32.64516 14.1% 21.2 20s 18107 484 cutoff 42 38.00000 35.19231 7.39% 20.5 25s Explored 18995 nodes (383706 simplex iterations) in 25.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%