Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:26:14 2012 Optimize a model with 133 rows, 412 columns and 412 nonzeros Model has 264 quadratic constraints Presolve removed 0 rows and 24 columns Presolve time: 1.54s Presolved: 133 rows, 388 columns, 388 nonzeros Variable types: 264 continuous, 124 integer (123 binary) Root relaxation: objective 0.000000e+00, 49 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 63.0000000 - - - 1s 0 0 0.00000 0 46 63.00000 0.00000 100% - 1s 0 0 0.00000 0 61 63.00000 0.00000 100% - 1s 0 0 0.00000 0 83 63.00000 0.00000 100% - 1s 0 2 0.00000 0 83 63.00000 0.00000 100% - 1s * 10 8 6 4.0000000 0.90462 77.4% 69.2 1s Cutting planes: Explored 36 nodes (2596 simplex iterations) in 1.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%