Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:51 2012 Optimize a model with 103 rows, 267 columns and 267 nonzeros Model has 204 quadratic constraints Presolve time: 1.19s Presolved: 103 rows, 267 columns, 267 nonzeros Variable types: 204 continuous, 63 integer (63 binary) Root relaxation: objective 0.000000e+00, 31 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 54.0000000 - - - 1s 0 0 0.00000 0 33 54.00000 0.00000 100% - 1s 0 0 0.00000 0 38 54.00000 0.00000 100% - 1s 0 0 0.00000 0 31 54.00000 0.00000 100% - 1s 0 2 0.00000 0 31 54.00000 0.00000 100% - 1s * 30 29 19 18.0000000 2.00000 88.9% 28.6 1s * 153 90 16 17.0000000 6.02273 64.6% 21.0 1s H 247 98 16.0000000 7.14286 55.4% 19.9 1s * 290 97 11 15.0000000 7.41176 50.6% 19.8 1s * 519 86 14 14.0000000 9.58333 31.5% 19.8 1s Cutting planes: Explored 854 nodes (16112 simplex iterations) in 1.56 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%