Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:41:06 2012 Optimize a model with 164 rows, 498 columns and 498 nonzeros Model has 326 quadratic constraints Presolve removed 0 rows and 22 columns Presolve time: 1.90s Presolved: 164 rows, 476 columns, 476 nonzeros Variable types: 326 continuous, 150 integer (149 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 90.0000000 - - - 1s 0 0 0.00000 0 40 90.00000 0.00000 100% - 1s 0 0 0.00000 0 70 90.00000 0.00000 100% - 1s 0 0 0.00000 0 68 90.00000 0.00000 100% - 1s 0 2 0.00000 0 68 90.00000 0.00000 100% - 1s * 24 21 18 4.0000000 0.73062 81.7% 36.4 2s Cutting planes: Gomory: 1 Explored 68 nodes (2822 simplex iterations) in 2.02 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%