Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:15:33 2012 Optimize a model with 268 rows, 769 columns and 769 nonzeros Model has 534 quadratic constraints Presolve removed 0 rows and 24 columns Presolve time: 3.10s Presolved: 268 rows, 745 columns, 745 nonzeros Variable types: 534 continuous, 211 integer (210 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 0 123.0000000 - - - 3s 0 0 0.00000 0 6 123.00000 0.00000 100% - 3s 0 0 0.00000 0 5 123.00000 0.00000 100% - 3s 0 0 0.00000 0 99 123.00000 0.00000 100% - 3s 0 2 0.00000 0 99 123.00000 0.00000 100% - 3s * 36 35 29 26.0000000 2.60227 90.0% 50.9 3s * 87 64 37 25.0000000 4.00000 84.0% 28.2 3s H 255 119 20.0000000 5.00000 75.0% 21.1 3s H 260 105 19.0000000 5.00000 73.7% 21.9 3s 607 223 8.26294 15 724 19.00000 8.26294 56.5% 26.2 5s * 1705 347 46 18.0000000 11.26563 37.4% 31.9 7s * 1795 279 47 17.0000000 11.48619 32.4% 32.6 8s 2694 133 16.00000 36 445 17.00000 14.20161 16.5% 32.0 10s Explored 2903 nodes (93277 simplex iterations) in 10.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%