Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:54 2012 Optimize a model with 61 rows, 172 columns and 172 nonzeros Model has 120 quadratic constraints Presolve removed 0 rows and 2 columns Presolve time: 0.70s Presolved: 61 rows, 170 columns, 170 nonzeros Variable types: 120 continuous, 50 integer (49 binary) Root relaxation: objective 0.000000e+00, 25 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 34.0000000 - - - 0s 0 0 0.00000 0 18 34.00000 0.00000 100% - 0s 0 0 0.00000 0 25 34.00000 0.00000 100% - 0s 0 0 0.00000 0 25 34.00000 0.00000 100% - 0s 0 2 0.00000 0 25 34.00000 0.00000 100% - 0s * 21 20 15 8.0000000 1.00000 87.5% 17.0 0s * 35 17 11 6.0000000 1.00000 83.3% 14.9 0s * 50 17 12 5.0000000 2.00000 60.0% 14.0 0s Cutting planes: Gomory: 2 Explored 109 nodes (1885 simplex iterations) in 0.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%