Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:14:57 2012 Optimize a model with 230 rows, 668 columns and 668 nonzeros Model has 458 quadratic constraints Presolve removed 0 rows and 20 columns Presolve time: 2.67s Presolved: 230 rows, 648 columns, 648 nonzeros Variable types: 458 continuous, 190 integer (189 binary) Root relaxation: objective 0.000000e+00, 81 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 117.0000000 - - - 2s 0 0 0.00000 0 3 117.00000 0.00000 100% - 2s 0 0 0.00000 0 5 117.00000 0.00000 100% - 2s 0 0 0.00000 0 116 117.00000 0.00000 100% - 2s 0 2 0.00000 0 100 117.00000 0.00000 100% - 2s * 25 21 19 13.0000000 2.10145 83.8% 59.6 2s * 42 20 13 11.0000000 3.89855 64.6% 47.1 2s H 120 32 11.0000000 5.31034 51.7% 34.0 2s * 120 30 7 10.0000000 5.31034 46.9% 34.1 2s Cutting planes: Explored 237 nodes (8049 simplex iterations) in 3.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%