Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:20:46 2012 Optimize a model with 1 rows, 125 columns and 125 nonzeros Model has 95 quadratic objective terms Presolve removed 0 rows and 30 columns Presolve time: 0.00s Presolved: 96 rows, 190 columns, 380 nonzeros Variable types: 0 continuous, 190 integer (189 binary) Found heuristic solution: objective 18.0000000 Root relaxation: objective 0.000000e+00, 107 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 20 18.00000 0.00000 100% - 0s 0 0 0.00000 0 14 18.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 26 12.00000 0.00000 100% - 0s 0 0 0.00000 0 12 12.00000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 14 11.00000 0.00000 100% - 0s 0 0 0.00000 0 13 11.00000 0.00000 100% - 0s 0 0 0.00000 0 11 11.00000 0.00000 100% - 0s 0 0 0.00000 0 11 11.00000 0.00000 100% - 0s 0 0 0.00000 0 11 11.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 2 0.00000 0 11 9.00000 0.00000 100% - 0s H 27 27 8.0000000 0.00000 100% 2.4 0s H 54 32 7.0000000 0.00000 100% 2.8 0s H 73 47 6.0000000 0.00000 100% 2.6 0s * 74 41 22 5.0000000 0.00000 100% 2.6 0s * 352 71 18 3.0000000 0.00000 100% 5.8 0s * 406 25 17 2.0000000 1.00000 50.0% 7.9 0s Cutting planes: Cover: 158 MIR: 3 Explored 432 nodes (4642 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%