Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:40:26 2012 Optimize a model with 174 rows, 517 columns and 517 nonzeros Model has 346 quadratic constraints Presolve removed 0 rows and 19 columns Presolve time: 2.02s Presolved: 174 rows, 498 columns, 498 nonzeros Variable types: 346 continuous, 152 integer (151 binary) Root relaxation: objective 0.000000e+00, 63 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 80.0000000 - - - 2s 0 0 0.00000 0 55 80.00000 0.00000 100% - 2s 0 0 0.00000 0 88 80.00000 0.00000 100% - 2s 0 0 0.00000 0 88 80.00000 0.00000 100% - 2s 0 2 0.00000 0 88 80.00000 0.00000 100% - 2s * 27 27 22 12.0000000 1.40977 88.3% 31.9 2s H 85 59 10.0000000 1.76431 82.4% 17.6 2s H 101 39 8.0000000 1.92159 76.0% 16.4 2s Cutting planes: Gomory: 3 Explored 780 nodes (14314 simplex iterations) in 2.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.999999998990e+00, best bound 7.999999998990e+00, gap 0.0%