Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:27:35 2012 Optimize a model with 125 rows, 401 columns and 401 nonzeros Model has 248 quadratic constraints Presolve removed 0 rows and 31 columns Presolve time: 1.45s Presolved: 125 rows, 370 columns, 370 nonzeros Variable types: 248 continuous, 122 integer (121 binary) Root relaxation: objective 0.000000e+00, 45 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 68.0000000 - - - 1s 0 0 0.00000 0 37 68.00000 0.00000 100% - 1s 0 0 0.00000 0 8 68.00000 0.00000 100% - 1s 0 0 0.00000 0 72 68.00000 0.00000 100% - 1s 0 2 0.00000 0 72 68.00000 0.00000 100% - 1s * 29 29 21 5.0000000 0.47490 90.5% 29.1 1s * 35 29 25 4.0000000 0.47490 88.1% 25.2 1s * 56 28 17 3.0000000 0.56218 81.3% 19.2 1s H 76 32 3.0000000 0.90164 69.9% 16.8 1s * 82 18 12 2.0000000 0.90164 54.9% 17.2 1s Cutting planes: Explored 123 nodes (2993 simplex iterations) in 1.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%