Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:25:40 2012 Optimize a model with 129 rows, 402 columns and 402 nonzeros Model has 256 quadratic constraints Presolve removed 0 rows and 26 columns Presolve time: 1.49s Presolved: 129 rows, 376 columns, 376 nonzeros Variable types: 256 continuous, 120 integer (119 binary) Root relaxation: objective 0.000000e+00, 47 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 58.0000000 - - - 1s 0 0 0.00000 0 2 58.00000 0.00000 100% - 1s 0 0 0.00000 0 3 58.00000 0.00000 100% - 1s 0 0 0.00000 0 3 58.00000 0.00000 100% - 1s 0 2 0.00000 0 2 58.00000 0.00000 100% - 1s * 25 23 18 6.0000000 0.00000 100% 42.8 1s H 56 34 6.0000000 0.19444 96.8% 36.1 1s * 134 45 21 5.0000000 1.00000 80.0% 24.5 1s H 175 47 5.0000000 1.00000 80.0% 24.7 1s * 175 22 8 4.0000000 1.00000 75.0% 24.7 1s Cutting planes: Gomory: 1 Explored 239 nodes (7048 simplex iterations) in 1.70 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%