Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:29 2012 Optimize a model with 53 rows, 147 columns and 147 nonzeros Model has 104 quadratic constraints Presolve removed 0 rows and 3 columns Presolve time: 0.61s Presolved: 53 rows, 144 columns, 144 nonzeros Variable types: 104 continuous, 40 integer (39 binary) Root relaxation: objective 0.000000e+00, 21 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 28.0000000 - - - 0s 0 0 0.00000 0 4 28.00000 0.00000 100% - 0s 0 0 0.00000 0 28 28.00000 0.00000 100% - 0s 0 0 0.00000 0 26 28.00000 0.00000 100% - 0s 0 2 0.00000 0 26 28.00000 0.00000 100% - 0s * 3 3 2 3.0000000 2.82353 5.88% 75.7 0s Cutting planes: Explored 5 nodes (535 simplex iterations) in 0.63 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%