Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:07 2012 Optimize a model with 37 rows, 112 columns and 112 nonzeros Model has 72 quadratic constraints Presolve removed 0 rows and 8 columns Presolve time: 0.42s Presolved: 37 rows, 104 columns, 104 nonzeros Variable types: 72 continuous, 32 integer (31 binary) Root relaxation: objective 0.000000e+00, 17 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 17.0000000 - - - 0s 0 0 0.00000 0 24 17.00000 0.00000 100% - 0s 0 0 0.13280 0 31 17.00000 0.13280 99.2% - 0s H 0 0 12.0000000 0.13280 98.9% - 0s 0 0 0.14194 0 31 12.00000 0.14194 98.8% - 0s 0 2 0.40000 0 31 12.00000 0.40000 96.7% - 0s * 4 4 4 4.0000000 1.12500 71.9% 22.2 0s * 14 4 3 3.0000000 1.71875 42.7% 15.1 0s Cutting planes: Gomory: 5 Explored 23 nodes (627 simplex iterations) in 0.45 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%