Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:55:44 2012 Optimize a model with 171 rows, 529 columns and 529 nonzeros Model has 340 quadratic constraints Presolve removed 0 rows and 30 columns Presolve time: 1.98s Presolved: 171 rows, 499 columns, 499 nonzeros Variable types: 340 continuous, 159 integer (158 binary) Root relaxation: objective 0.000000e+00, 61 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 87.0000000 - - - 1s 0 0 0.00000 0 58 87.00000 0.00000 100% - 2s 0 0 0.00000 0 94 87.00000 0.00000 100% - 2s 0 0 0.00000 0 92 87.00000 0.00000 100% - 2s 0 2 0.00000 0 35 87.00000 0.00000 100% - 2s * 18 18 14 9.0000000 1.13099 87.4% 42.8 2s H 95 36 8.0000000 2.00000 75.0% 21.4 2s H 137 41 7.0000000 2.48633 64.5% 18.6 2s * 247 51 29 6.0000000 3.01075 49.8% 14.7 2s H 323 57 6.0000000 4.08511 31.9% 13.6 2s Cutting planes: Gomory: 49 Explored 437 nodes (7070 simplex iterations) in 2.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.999999998871e+00, best bound 5.999999998871e+00, gap 0.0%