Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:33:16 2012 Optimize a model with 146 rows, 449 columns and 449 nonzeros Model has 290 quadratic constraints Presolve removed 0 rows and 27 columns Presolve time: 1.69s Presolved: 146 rows, 422 columns, 422 nonzeros Variable types: 290 continuous, 132 integer (131 binary) Root relaxation: objective 0.000000e+00, 53 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 71.0000000 - - - 1s 0 0 0.00000 0 2 71.00000 0.00000 100% - 1s 0 0 0.00000 0 3 71.00000 0.00000 100% - 1s 0 0 0.00000 0 30 71.00000 0.00000 100% - 1s 0 2 0.00000 0 81 71.00000 0.00000 100% - 1s * 31 24 21 7.0000000 0.92857 86.7% 54.2 1s H 40 24 7.0000000 1.00000 85.7% 45.2 1s * 40 19 9 6.0000000 1.00000 83.3% 45.2 1s H 109 16 6.0000000 1.00000 83.3% 35.4 1s Cutting planes: Explored 253 nodes (6930 simplex iterations) in 1.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.999999999099e+00, best bound 5.999999999099e+00, gap 0.0%