Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:27:54 2012 Optimize a model with 266 rows, 759 columns and 759 nonzeros Model has 530 quadratic constraints Presolve removed 0 rows and 18 columns Presolve time: 3.09s Presolved: 266 rows, 741 columns, 741 nonzeros Variable types: 530 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 0 131.0000000 - - - 3s 0 0 0.00000 0 6 131.00000 0.00000 100% - 3s 0 0 0.00000 0 2 131.00000 0.00000 100% - 3s 0 0 0.00000 0 80 131.00000 0.00000 100% - 3s 0 2 0.00000 0 80 131.00000 0.00000 100% - 3s H 42 42 36.0000000 1.87413 94.8% 40.3 3s * 43 43 35 31.0000000 1.87413 94.0% 45.8 3s H 81 49 22.0000000 1.88889 91.4% 31.3 3s 603 369 20.35897 31 458 22.00000 5.36111 75.6% 17.8 5s * 684 383 30 21.0000000 5.36111 74.5% 27.3 6s * 758 380 30 20.0000000 6.12500 69.4% 32.2 6s H 1069 388 18.0000000 7.94595 55.9% 39.0 8s * 1084 351 42 17.0000000 7.94595 53.3% 38.7 8s Explored 1694 nodes (62149 simplex iterations) in 9.44 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%