Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:13:09 2012 Optimize a model with 4496 rows, 134 columns and 8992 nonzeros Presolve removed 3229 rows and 0 columns Presolve time: 0.16s Presolved: 1267 rows, 134 columns, 8933 nonzeros Variable types: 0 continuous, 134 integer (134 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.732539e+01, 640 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.32539 0 133 8.00000 17.32539 117% - 0s H 0 0 9.0000000 17.32539 92.5% - 0s 0 0 16.80927 0 132 9.00000 16.80927 86.8% - 0s H 0 0 10.0000000 16.80927 68.1% - 0s 0 0 16.74255 0 134 10.00000 16.74255 67.4% - 0s 0 0 16.70073 0 134 10.00000 16.70073 67.0% - 0s 0 0 16.67867 0 134 10.00000 16.67867 66.8% - 1s 0 0 16.67462 0 133 10.00000 16.67462 66.7% - 1s 0 0 16.67355 0 133 10.00000 16.67355 66.7% - 1s 0 2 16.67247 0 133 10.00000 16.67247 66.7% - 1s 483 54 cutoff 13 10.00000 12.12642 21.3% 80.3 5s Cutting planes: Clique: 92 Explored 538 nodes (42264 simplex iterations) in 5.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%