Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:39:40 2012 Optimize a model with 163 rows, 494 columns and 494 nonzeros Model has 324 quadratic constraints Presolve removed 0 rows and 25 columns Presolve time: 1.89s Presolved: 163 rows, 469 columns, 469 nonzeros Variable types: 324 continuous, 145 integer (144 binary) Root relaxation: objective 0.000000e+00, 59 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 74.0000000 - - - 1s 0 0 0.00000 0 70 74.00000 0.00000 100% - 1s 0 0 0.00000 0 91 74.00000 0.00000 100% - 1s 0 0 0.00000 0 87 74.00000 0.00000 100% - 1s 0 2 0.00000 0 80 74.00000 0.00000 100% - 1s H 27 27 19.0000000 1.74254 90.8% 31.7 2s H 44 44 13.0000000 1.74254 86.6% 26.6 2s * 44 44 29 11.0000000 1.74254 84.2% 26.6 2s * 195 95 27 9.0000000 3.72727 58.6% 17.4 2s * 213 72 16 8.0000000 3.81818 52.3% 17.1 2s * 476 41 9 7.0000000 6.00000 14.3% 16.4 2s Cutting planes: Gomory: 2 Explored 529 nodes (9767 simplex iterations) in 2.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%