Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:41:48 2012 Optimize a model with 162 rows, 495 columns and 495 nonzeros Model has 322 quadratic constraints Presolve removed 0 rows and 27 columns Presolve time: 1.88s Presolved: 162 rows, 468 columns, 468 nonzeros Variable types: 322 continuous, 146 integer (145 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 84.0000000 - - - 1s 0 0 0.00000 0 49 84.00000 0.00000 100% - 1s 0 0 0.00000 0 79 84.00000 0.00000 100% - 1s 0 0 0.00000 0 31 84.00000 0.00000 100% - 1s 0 2 0.00000 0 107 84.00000 0.00000 100% - 1s * 42 42 29 13.0000000 1.76923 86.4% 32.0 2s H 45 41 12.0000000 1.76923 85.3% 31.9 2s * 45 37 31 11.0000000 1.76923 83.9% 31.9 2s * 120 44 13 8.0000000 2.21008 72.4% 19.6 2s * 153 35 13 7.0000000 2.40984 65.6% 17.8 2s Cutting planes: Explored 345 nodes (7241 simplex iterations) in 2.14 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%