Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:36:36 2012 Optimize a model with 140 rows, 445 columns and 445 nonzeros Model has 278 quadratic constraints Presolve removed 0 rows and 32 columns Presolve time: 1.61s Presolved: 140 rows, 413 columns, 413 nonzeros Variable types: 278 continuous, 135 integer (134 binary) Root relaxation: objective 0.000000e+00, 51 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 68.0000000 - - - 1s 0 0 0.00000 0 72 68.00000 0.00000 100% - 1s 0 0 0.00000 0 82 68.00000 0.00000 100% - 1s 0 0 0.00000 0 6 68.00000 0.00000 100% - 1s 0 2 0.00000 0 6 68.00000 0.00000 100% - 1s * 22 22 18 7.0000000 0.32174 95.4% 30.7 1s * 50 32 19 6.0000000 0.73810 87.7% 21.7 1s * 64 26 16 4.0000000 0.93846 76.5% 20.3 1s H 102 29 4.0000000 0.98750 75.3% 18.0 1s * 309 9 7 3.0000000 2.00000 33.3% 15.7 1s Cutting planes: Explored 323 nodes (6487 simplex iterations) in 1.84 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%