Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:50:34 2012 Optimize a model with 163 rows, 503 columns and 503 nonzeros Model has 324 quadratic constraints Presolve removed 0 rows and 23 columns Presolve time: 1.89s Presolved: 163 rows, 480 columns, 480 nonzeros Variable types: 324 continuous, 156 integer (155 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 76.0000000 - - - 1s 0 0 0.00000 0 64 76.00000 0.00000 100% - 1s 0 0 0.00000 0 83 76.00000 0.00000 100% - 1s 0 0 0.00000 0 14 76.00000 0.00000 100% - 1s 0 2 0.00000 0 14 76.00000 0.00000 100% - 1s H 24 24 7.0000000 1.13043 83.9% 34.4 1s H 44 33 7.0000000 1.23684 82.3% 28.9 2s * 65 20 10 4.0000000 1.59406 60.1% 25.1 2s Cutting planes: Gomory: 54 Explored 114 nodes (3984 simplex iterations) in 2.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%