Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:28:03 2012 Optimize a model with 127 rows, 406 columns and 406 nonzeros Model has 252 quadratic constraints Presolve removed 0 rows and 26 columns Presolve time: 1.47s Presolved: 127 rows, 380 columns, 380 nonzeros Variable types: 252 continuous, 128 integer (127 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 61.0000000 - - - 1s 0 0 0.00000 0 43 61.00000 0.00000 100% - 1s 0 0 0.00000 0 77 61.00000 0.00000 100% - 1s 0 0 0.00000 0 77 61.00000 0.00000 100% - 1s H 0 0 35.0000000 0.00000 100% - 1s 0 2 0.00000 0 101 35.00000 0.00000 100% - 1s H 24 24 6.0000000 0.82759 86.2% 36.0 1s * 47 19 31 3.0000000 0.82759 72.4% 25.8 1s H 72 32 3.0000000 0.98113 67.3% 22.1 1s * 72 14 17 2.0000000 0.98113 50.9% 22.1 1s Cutting planes: Gomory: 1 Explored 115 nodes (3207 simplex iterations) in 1.60 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%