Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:37:58 2013 Optimize a model with 78496 rows, 77616 columns and 309936 nonzeros Presolve removed 88 rows and 0 columns Presolve time: 0.37s Presolved: 78408 rows, 77616 columns, 309848 nonzeros Variable types: 77528 continuous, 88 integer (88 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8230 7.5981019e+04 2.822804e+04 0.000000e+00 5s 10150 7.6717949e+04 2.813210e+03 0.000000e+00 10s 10276 7.6723092e+04 0.000000e+00 0.000000e+00 11s Root relaxation: objective 7.672309e+04, 10276 iterations, 10.76 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 76723.0915 0 69 - 76723.0915 - - 11s H 0 0 132887.00000 76723.0915 42.3% - 19s 0 0 98010.5601 0 22 132887.000 98010.5601 26.2% - 38s H 0 0 126838.00000 98010.5601 22.7% - 42s 0 0 106597.753 0 10 126838.000 106597.753 16.0% - 47s H 0 0 120222.55636 106597.753 11.3% - 47s H 0 0 114391.00000 106597.753 6.81% - 47s 0 0 108240.080 0 3 114391.000 108240.080 5.38% - 49s H 0 0 109191.09653 108240.080 0.87% - 49s H 0 0 108924.00000 108240.080 0.63% - 49s 0 2 108249.989 0 3 108924.000 108249.989 0.62% - 50s H 1 1 108701.52995 108249.989 0.42% 0.0 50s H 6 4 108450.00000 108283.904 0.15% 69.0 51s H 7 5 108434.55131 108283.957 0.14% 60.9 51s H 9 5 108399.34211 108283.957 0.11% 69.0 51s H 10 5 108397.26667 108283.957 0.10% 68.7 51s * 12 5 12 108342.00000 108283.957 0.05% 68.8 52s Cutting planes: Gomory: 1 Implied bound: 88 Explored 18 nodes (26682 simplex iterations) in 52.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.083420000000e+05, best bound 1.083382109920e+05, gap 0.0035%