Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:24:24 2012 Optimize a model with 1 rows, 142 columns and 142 nonzeros Model has 119 quadratic objective terms Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 120 rows, 236 columns, 474 nonzeros Variable types: 0 continuous, 236 integer (235 binary) Found heuristic solution: objective 30.0000000 Root relaxation: objective 0.000000e+00, 143 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 34 30.00000 0.00000 100% - 0s 0 0 0.00000 0 25 30.00000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 0 0.00000 0 24 17.00000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 23 9.00000 0.00000 100% - 0s 0 0 0.00000 0 21 9.00000 0.00000 100% - 0s 0 0 0.00000 0 17 9.00000 0.00000 100% - 0s 0 0 0.00000 0 16 9.00000 0.00000 100% - 0s 0 0 0.00000 0 35 9.00000 0.00000 100% - 0s 0 0 0.00000 0 11 9.00000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 2 0.00000 0 11 5.00000 0.00000 100% - 0s H 9 9 3.0000000 0.00000 100% 2.3 0s * 332 8 4 2.0000000 1.00000 50.0% 11.5 0s Cutting planes: Cover: 191 MIR: 5 Explored 341 nodes (4274 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%