Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:36 2012 Optimize a model with 158 rows, 479 columns and 479 nonzeros Model has 314 quadratic constraints Presolve removed 0 rows and 19 columns Presolve time: 1.84s Presolved: 158 rows, 460 columns, 460 nonzeros Variable types: 314 continuous, 146 integer (145 binary) Root relaxation: objective 0.000000e+00, 57 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 79 73.00000 0.00000 100% - 1s 0 0 0.00000 0 96 73.00000 0.00000 100% - 1s 0 0 0.00000 0 91 73.00000 0.00000 100% - 1s 0 2 0.00000 0 91 73.00000 0.00000 100% - 1s * 31 29 20 10.0000000 1.09302 89.1% 35.7 1s * 57 39 21 9.0000000 1.82241 79.8% 29.3 2s * 190 68 21 8.0000000 2.49513 68.8% 19.4 2s H 205 56 7.0000000 3.00000 57.1% 18.6 2s Cutting planes: Gomory: 2 Explored 460 nodes (9368 simplex iterations) in 2.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.999999999057e+00, best bound 6.999999999057e+00, gap 0.0%