Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:37:21 2012 Optimize a model with 145 rows, 457 columns and 457 nonzeros Model has 288 quadratic constraints Presolve removed 0 rows and 26 columns Presolve time: 1.68s Presolved: 145 rows, 431 columns, 431 nonzeros Variable types: 288 continuous, 143 integer (142 binary) Root relaxation: objective 0.000000e+00, 53 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 76.0000000 - - - 1s 0 0 0.00000 0 39 76.00000 0.00000 100% - 1s 0 0 0.00000 0 71 76.00000 0.00000 100% - 1s 0 0 0.00000 0 70 76.00000 0.00000 100% - 1s 0 2 0.00000 0 90 76.00000 0.00000 100% - 1s * 9 7 6 3.0000000 1.19298 60.2% 123 1s Cutting planes: Gomory: 1 Explored 40 nodes (2621 simplex iterations) in 1.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%