Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:54:00 2012 Optimize a model with 175 rows, 534 columns and 534 nonzeros Model has 348 quadratic constraints Presolve removed 0 rows and 28 columns Presolve time: 2.03s Presolved: 175 rows, 506 columns, 506 nonzeros Variable types: 348 continuous, 158 integer (157 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 96.0000000 - - - 2s 0 0 0.00000 0 2 96.00000 0.00000 100% - 2s 0 0 0.00000 0 2 96.00000 0.00000 100% - 2s 0 0 0.00000 0 96 96.00000 0.00000 100% - 2s 0 2 0.00000 0 95 96.00000 0.00000 100% - 2s * 14 14 11 9.0000000 1.50000 83.3% 75.0 2s * 511 134 25 8.0000000 4.71040 41.1% 14.1 2s * 528 65 9 7.0000000 4.85000 30.7% 13.9 2s Cutting planes: Explored 640 nodes (10117 simplex iterations) in 2.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%