Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:33:13 2012 Optimize a model with 1 rows, 159 columns and 159 nonzeros Model has 126 quadratic objective terms Presolve removed 0 rows and 35 columns Presolve time: 0.00s Presolved: 127 rows, 250 columns, 502 nonzeros Variable types: 0 continuous, 250 integer (249 binary) Found heuristic solution: objective 35.0000000 Root relaxation: objective 0.000000e+00, 152 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 33 35.00000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.00000 0 22 26.00000 0.00000 100% - 0s H 0 0 18.0000000 0.00000 100% - 0s H 0 0 15.0000000 0.00000 100% - 0s 0 0 0.00000 0 32 15.00000 0.00000 100% - 0s 0 0 0.00000 0 13 15.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s H 0 0 11.0000000 0.00000 100% - 0s 0 0 0.00000 0 18 11.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.00000 0 13 9.00000 0.00000 100% - 0s 0 0 0.00000 0 11 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 0 0 0.00000 0 15 7.00000 0.00000 100% - 0s 0 0 0.00000 0 15 7.00000 0.00000 100% - 0s 0 2 0.00000 0 15 7.00000 0.00000 100% - 0s H 81 31 4.0000000 0.00000 100% 3.4 0s H 286 49 3.0000000 0.00000 100% 10.2 0s Cutting planes: Cover: 214 MIR: 1 Explored 347 nodes (7691 simplex iterations) in 0.14 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%