Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:03:01 2012 Optimize a model with 3921 rows, 126 columns and 7842 nonzeros Presolve removed 2762 rows and 0 columns Presolve time: 0.13s Presolved: 1159 rows, 126 columns, 7959 nonzeros Variable types: 0 continuous, 126 integer (126 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.682718e+01, 614 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 16.82718 0 120 8.00000 16.82718 110% - 0s 0 0 16.27316 0 125 8.00000 16.27316 103% - 0s H 0 0 10.0000000 16.27316 62.7% - 0s 0 0 16.26337 0 126 10.00000 16.26337 62.6% - 0s 0 0 16.23436 0 126 10.00000 16.23436 62.3% - 0s 0 0 16.22262 0 125 10.00000 16.22262 62.2% - 0s 0 0 16.22220 0 125 10.00000 16.22220 62.2% - 1s 0 0 16.22005 0 125 10.00000 16.22005 62.2% - 1s 0 0 16.21813 0 126 10.00000 16.21813 62.2% - 1s 0 0 16.21323 0 126 10.00000 16.21323 62.1% - 1s 0 0 16.20411 0 126 10.00000 16.20411 62.0% - 1s 0 0 16.20301 0 126 10.00000 16.20301 62.0% - 2s 0 0 16.20279 0 126 10.00000 16.20279 62.0% - 2s 0 0 16.20103 0 126 10.00000 16.20103 62.0% - 2s 0 0 16.19546 0 126 10.00000 16.19546 62.0% - 2s 0 0 16.19530 0 126 10.00000 16.19530 62.0% - 2s 0 0 16.19530 0 126 10.00000 16.19530 62.0% - 3s 0 2 16.19483 0 126 10.00000 16.19483 61.9% - 3s 253 90 11.63196 17 54 10.00000 14.12184 41.2% 77.7 5s Cutting planes: Clique: 127 Explored 414 nodes (31893 simplex iterations) in 5.86 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%