Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:13:55 2012 Optimize a model with 4551 rows, 135 columns and 9102 nonzeros Presolve removed 3260 rows and 0 columns Presolve time: 0.17s Presolved: 1291 rows, 135 columns, 9171 nonzeros Variable types: 0 continuous, 135 integer (135 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.734622e+01, 626 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.34622 0 134 7.00000 17.34622 148% - 0s H 0 0 8.0000000 17.34622 117% - 0s 0 0 16.97436 0 133 8.00000 16.97436 112% - 0s 0 0 16.85149 0 134 8.00000 16.85149 111% - 0s 0 0 16.80787 0 134 8.00000 16.80787 110% - 0s 0 0 16.77434 0 135 8.00000 16.77434 110% - 1s 0 0 16.74673 0 134 8.00000 16.74673 109% - 1s H 0 0 9.0000000 16.74673 86.1% - 1s 0 0 16.67779 0 134 9.00000 16.67779 85.3% - 1s 0 0 16.66602 0 134 9.00000 16.66602 85.2% - 1s 0 0 16.66428 0 134 9.00000 16.66428 85.2% - 1s 0 0 16.66416 0 134 9.00000 16.66416 85.2% - 2s 0 2 16.66414 0 134 9.00000 16.66414 85.2% - 2s 415 217 11.01787 23 55 9.00000 14.76106 64.0% 71.9 5s 613 284 13.40448 16 77 9.00000 13.40448 48.9% 70.2 10s * 758 258 22 11.0000000 13.40448 21.9% 92.3 12s Cutting planes: Clique: 53 Explored 915 nodes (76292 simplex iterations) in 13.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%