Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:04:08 2012 Optimize a model with 191 rows, 580 columns and 580 nonzeros Model has 380 quadratic constraints Presolve removed 0 rows and 32 columns Presolve time: 2.21s Presolved: 191 rows, 548 columns, 548 nonzeros Variable types: 380 continuous, 168 integer (167 binary) Root relaxation: objective 0.000000e+00, 67 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 - - - 2s 0 0 0.00000 0 98 87.00000 0.00000 100% - 2s 0 0 0.00000 0 124 87.00000 0.00000 100% - 2s 0 0 0.00000 0 120 87.00000 0.00000 100% - 2s 0 2 0.00000 0 110 87.00000 0.00000 100% - 2s * 37 31 22 10.0000000 1.48551 85.1% 37.1 2s H 127 57 9.0000000 3.06250 66.0% 19.4 2s Cutting planes: Gomory: 2 Explored 635 nodes (13159 simplex iterations) in 2.78 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.999999998895e+00, best bound 8.999999998895e+00, gap 0.0%