Gurobi 5.0.1 (linux64) logging started Wed Apr 24 09:57:06 2013 Optimize a model with 101100 rows, 100100 columns and 400100 nonzeros Presolve removed 4410 rows and 0 columns Presolve time: 0.74s Presolved: 96690 rows, 100100 columns, 391280 nonzeros Variable types: 100000 continuous, 100 integer (100 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 20153 1.3913614e+05 8.513738e+02 0.000000e+00 5s 20658 1.3921481e+05 0.000000e+00 0.000000e+00 6s Root relaxation: objective 1.392148e+05, 20658 iterations, 5.54 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 139214.807 0 5 - 139214.807 - - 6s H 0 0 143854.00000 139214.807 3.22% - 7s H 0 0 139521.00000 139214.807 0.22% - 7s 0 0 139217.347 0 7 139521.000 139217.347 0.22% - 8s 0 0 139217.627 0 7 139521.000 139217.627 0.22% - 9s 0 0 139217.627 0 7 139521.000 139217.627 0.22% - 9s 0 0 139217.627 0 5 139521.000 139217.627 0.22% - 17s 0 0 139218.803 0 7 139521.000 139218.803 0.22% - 18s 0 0 139219.045 0 7 139521.000 139219.045 0.22% - 18s 0 0 139219.045 0 7 139521.000 139219.045 0.22% - 19s 0 2 139227.892 0 7 139521.000 139227.892 0.21% - 22s * 22 12 12 139483.00000 139321.368 0.12% 67.0 24s Cutting planes: Gomory: 4 Flow cover: 11 Explored 47 nodes (31579 simplex iterations) in 24.94 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.394830000000e+05, best bound 1.394830000000e+05, gap 0.0%