Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:36:13 2012 Optimize a model with 138 rows, 440 columns and 440 nonzeros Model has 274 quadratic constraints Presolve removed 0 rows and 26 columns Presolve time: 1.60s Presolved: 138 rows, 414 columns, 414 nonzeros Variable types: 274 continuous, 140 integer (139 binary) Root relaxation: objective 0.000000e+00, 51 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 73.0000000 - - - 1s 0 0 0.00000 0 32 73.00000 0.00000 100% - 1s 0 0 0.00000 0 53 73.00000 0.00000 100% - 1s 0 0 0.00000 0 62 73.00000 0.00000 100% - 1s 0 2 0.00000 0 60 73.00000 0.00000 100% - 1s * 8 8 5 2.0000000 0.13545 93.2% 81.5 1s Cutting planes: Explored 23 nodes (2357 simplex iterations) in 1.68 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%