Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:28:48 2012 Optimize a model with 129 rows, 412 columns and 412 nonzeros Model has 256 quadratic constraints Presolve removed 0 rows and 26 columns Presolve time: 1.49s Presolved: 129 rows, 386 columns, 386 nonzeros Variable types: 256 continuous, 130 integer (129 binary) Root relaxation: objective 0.000000e+00, 47 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 57.0000000 - - - 1s 0 0 0.00000 0 11 57.00000 0.00000 100% - 1s 0 0 0.00000 0 67 57.00000 0.00000 100% - 1s 0 0 0.00000 0 62 57.00000 0.00000 100% - 1s 0 2 0.00000 0 62 57.00000 0.00000 100% - 1s * 15 8 11 2.0000000 0.61111 69.4% 50.8 1s Cutting planes: Explored 39 nodes (2218 simplex iterations) in 1.58 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%