Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:51:16 2012 Optimize a model with 175 rows, 528 columns and 528 nonzeros Model has 348 quadratic constraints Presolve removed 0 rows and 24 columns Presolve time: 2.03s Presolved: 175 rows, 504 columns, 504 nonzeros Variable types: 348 continuous, 156 integer (155 binary) Root relaxation: objective 0.000000e+00, 63 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 72.0000000 - - - 2s 0 0 0.00000 0 2 72.00000 0.00000 100% - 2s 0 0 0.00000 0 2 72.00000 0.00000 100% - 2s 0 0 0.00000 0 2 72.00000 0.00000 100% - 2s 0 2 0.00000 0 64 72.00000 0.00000 100% - 2s H 44 44 11.0000000 0.90566 91.8% 35.0 2s * 44 34 35 9.0000000 0.90566 89.9% 35.1 2s * 256 82 8 8.0000000 2.92418 63.4% 20.9 2s H 339 95 8.0000000 3.89304 51.3% 19.5 2s H 444 60 7.0000000 5.30000 24.3% 20.2 2s H 499 31 7.0000000 6.08750 13.0% 19.4 2s Cutting planes: Gomory: 1 Explored 535 nodes (10582 simplex iterations) in 2.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.999999998903e+00, best bound 6.999999998903e+00, gap 0.0%