Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:02:30 2012 Optimize a model with 201 rows, 598 columns and 598 nonzeros Model has 400 quadratic constraints Presolve removed 0 rows and 25 columns Presolve time: 2.33s Presolved: 201 rows, 573 columns, 573 nonzeros Variable types: 400 continuous, 173 integer (172 binary) Root relaxation: objective 0.000000e+00, 71 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 97.0000000 - - - 2s 0 0 0.00000 0 18 97.00000 0.00000 100% - 2s 0 0 0.00000 0 98 97.00000 0.00000 100% - 2s 0 0 0.00000 0 98 97.00000 0.00000 100% - 2s 0 2 0.00000 0 98 97.00000 0.00000 100% - 2s * 35 34 27 12.0000000 2.16535 82.0% 39.1 2s * 36 29 28 11.0000000 2.16535 80.3% 38.1 2s * 213 67 18 10.0000000 4.98044 50.2% 17.5 2s H 575 90 10.0000000 7.85484 21.5% 14.9 2s * 575 34 11 9.0000000 7.85484 12.7% 14.9 2s Cutting planes: Gomory: 1 Explored 631 nodes (10593 simplex iterations) in 2.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%