Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:54:39 2012 Optimize a model with 170 rows, 525 columns and 525 nonzeros Model has 338 quadratic constraints Presolve removed 0 rows and 26 columns Presolve time: 1.97s Presolved: 170 rows, 499 columns, 499 nonzeros Variable types: 338 continuous, 161 integer (160 binary) Root relaxation: objective 0.000000e+00, 61 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 - - - 1s 0 0 0.00000 0 8 87.00000 0.00000 100% - 1s 0 0 0.00000 0 2 87.00000 0.00000 100% - 1s 0 0 0.00000 0 68 87.00000 0.00000 100% - 1s 0 2 0.00000 0 68 87.00000 0.00000 100% - 2s H 27 25 5.0000000 1.58145 68.4% 24.3 2s H 103 50 5.0000000 2.33333 53.3% 12.8 2s * 174 17 8 4.0000000 3.23077 19.2% 13.0 2s Cutting planes: Explored 192 nodes (3821 simplex iterations) in 2.14 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%