Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:47 2012 Optimize a model with 141 rows, 445 columns and 445 nonzeros Model has 280 quadratic constraints Presolve removed 0 rows and 30 columns Presolve time: 1.63s Presolved: 141 rows, 415 columns, 415 nonzeros Variable types: 280 continuous, 135 integer (134 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 60.0000000 - - - 1s 0 0 0.00000 0 12 60.00000 0.00000 100% - 1s 0 0 0.00000 0 4 60.00000 0.00000 100% - 1s 0 0 0.00000 0 2 60.00000 0.00000 100% - 1s 0 2 0.00000 0 75 60.00000 0.00000 100% - 1s * 11 11 8 3.0000000 0.52556 82.5% 68.4 1s Cutting planes: Gomory: 1 Explored 122 nodes (2738 simplex iterations) in 1.75 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%