Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:15:43 2012 Optimize a model with 293 rows, 819 columns and 819 nonzeros Model has 584 quadratic constraints Presolve removed 0 rows and 17 columns Presolve time: 3.45s Presolved: 293 rows, 802 columns, 802 nonzeros Variable types: 584 continuous, 218 integer (217 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 0 146.0000000 - - - 3s 0 0 0.00000 0 100 146.00000 0.00000 100% - 3s 0 0 0.00000 0 128 146.00000 0.00000 100% - 3s 0 0 0.00000 0 119 146.00000 0.00000 100% - 3s 0 2 0.00000 0 117 146.00000 0.00000 100% - 3s H 41 41 33.0000000 2.32350 93.0% 40.2 3s * 52 52 27 27.0000000 2.32350 91.4% 36.9 3s * 313 227 43 26.0000000 4.94495 81.0% 30.1 4s 603 346 17.06927 10 500 26.00000 7.00000 73.1% 30.6 5s 1859 646 25.36913 46 390 26.00000 12.83200 50.6% 42.4 10s 3945 1433 25.00721 37 459 26.00000 15.59245 40.0% 36.7 15s 5989 1982 20.88525 31 474 26.00000 17.03261 34.5% 35.9 20s 8253 2472 cutoff 34 26.00000 18.22581 29.9% 33.7 25s * 8416 2141 52 25.0000000 18.32432 26.7% 33.5 25s H 8417 1670 24.0000000 18.32432 23.6% 33.5 25s 10262 1366 22.00000 35 478 24.00000 19.90755 17.1% 33.9 30s 10663 1262 22.37647 33 445 24.00000 20.08784 16.3% 34.4 35s 11105 1118 cutoff 40 24.00000 20.55266 14.4% 34.3 40s 11345 1028 22.56961 34 507 24.00000 20.81818 13.3% 34.2 45s 12017 724 22.44872 34 481 24.00000 21.50000 10.4% 34.2 50s Explored 12962 nodes (436845 simplex iterations) in 52.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%