Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:16:47 2013 Optimize a model with 89394 rows, 88454 columns and 353534 nonzeros Presolve removed 5597 rows and 0 columns Presolve time: 0.62s Presolved: 83797 rows, 88454 columns, 342340 nonzeros Variable types: 88360 continuous, 94 integer (94 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 18101 1.1932482e+05 5.207410e+01 0.000000e+00 5s 18238 1.1933211e+05 0.000000e+00 0.000000e+00 5s Root relaxation: objective 1.193321e+05, 18238 iterations, 5.28 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 119332.112 0 2 - 119332.112 - - 6s H 0 0 122515.00000 119332.112 2.60% - 6s 0 0 119335.452 0 3 122515.000 119335.452 2.60% - 7s H 0 0 120728.00000 119335.452 1.15% - 7s 0 0 119336.000 0 1 120728.000 119336.000 1.15% - 8s H 0 0 120506.00000 119336.000 0.97% - 8s 0 0 119336.014 0 3 120506.000 119336.014 0.97% - 8s 0 0 119336.014 0 3 120506.000 119336.014 0.97% - 10s 0 2 119336.266 0 3 120506.000 119336.266 0.97% - 12s H 2 2 120061.00000 119346.515 0.60% 85.5 12s H 7 7 120049.16667 119425.099 0.52% 138 14s 7 9 119480.000 7 1 120049.167 119425.099 0.52% 185 15s H 13 13 119994.00000 119425.099 0.47% 141 16s H 15 14 119779.00000 119425.099 0.30% 135 16s H 24 5 119502.67123 119447.812 0.05% 150 19s * 26 2 7 119491.00000 119447.812 0.04% 154 19s Cutting planes: Gomory: 2 Flow cover: 2 Explored 28 nodes (22332 simplex iterations) in 19.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.194910000000e+05, best bound 1.194836605469e+05, gap 0.0061%