Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:42 2012 Optimize a model with 45 rows, 119 columns and 119 nonzeros Model has 88 quadratic constraints Presolve time: 0.51s Presolved: 45 rows, 119 columns, 119 nonzeros Variable types: 88 continuous, 31 integer (31 binary) Root relaxation: objective 0.000000e+00, 15 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 23.0000000 - - - 0s 0 0 0.00000 0 21 23.00000 0.00000 100% - 0s 0 0 0.23413 0 28 23.00000 0.23413 99.0% - 0s 0 2 0.33333 0 28 23.00000 0.33333 98.6% - 0s * 8 8 6 8.0000000 2.83333 64.6% 19.5 0s * 32 11 9 7.0000000 4.50000 35.7% 12.4 0s * 49 5 5 6.0000000 5.15385 14.1% 10.5 0s Cutting planes: Gomory: 1 Explored 55 nodes (837 simplex iterations) in 0.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%