Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:21:10 2012 Optimize a model with 245 rows, 701 columns and 701 nonzeros Model has 488 quadratic constraints Presolve removed 0 rows and 15 columns Presolve time: 2.85s Presolved: 245 rows, 686 columns, 686 nonzeros Variable types: 488 continuous, 198 integer (197 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 0 122.0000000 - - - 2s 0 0 0.00000 0 89 122.00000 0.00000 100% - 2s 0 0 0.00000 0 114 122.00000 0.00000 100% - 2s 0 0 0.00000 0 92 122.00000 0.00000 100% - 2s 0 2 0.00000 0 87 122.00000 0.00000 100% - 3s H 39 39 25.0000000 2.08571 91.7% 40.6 3s * 40 40 27 22.0000000 2.08571 90.5% 42.1 3s * 82 70 38 19.0000000 2.11429 88.9% 29.2 3s * 115 84 26 18.0000000 2.15094 88.1% 30.1 3s * 578 281 18 17.0000000 7.00000 58.8% 24.1 3s H 606 248 16.0000000 7.13555 55.4% 24.3 3s * 607 207 16 15.0000000 7.13555 52.4% 24.3 3s 770 238 9.41279 20 388 15.00000 7.34211 51.1% 33.2 5s * 2935 31 33 14.0000000 12.54455 10.4% 34.4 9s Explored 2967 nodes (103815 simplex iterations) in 9.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%