Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:29:06 2012 Optimize a model with 133 rows, 421 columns and 421 nonzeros Model has 264 quadratic constraints Presolve removed 0 rows and 30 columns Presolve time: 1.54s Presolved: 133 rows, 391 columns, 391 nonzeros Variable types: 264 continuous, 127 integer (126 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 62.0000000 - - - 1s 0 0 0.00000 0 33 62.00000 0.00000 100% - 1s 0 0 0.00000 0 58 62.00000 0.00000 100% - 1s 0 0 0.00000 0 2 62.00000 0.00000 100% - 1s 0 2 0.00000 0 2 62.00000 0.00000 100% - 1s * 28 28 19 6.0000000 0.00000 100% 36.9 1s H 40 28 5.0000000 0.00000 100% 31.0 1s * 97 24 9 4.0000000 0.21348 94.7% 19.5 1s H 147 40 4.0000000 1.00000 75.0% 20.9 1s * 147 23 6 3.0000000 1.00000 66.7% 20.9 1s Cutting planes: Explored 192 nodes (5564 simplex iterations) in 1.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%