Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:43:52 2013 Optimize a model with 91295 rows, 90345 columns and 361095 nonzeros Presolve removed 3588 rows and 0 columns Presolve time: 0.64s Presolved: 87707 rows, 90345 columns, 353919 nonzeros Variable types: 90250 continuous, 95 integer (95 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 18265 1.0696653e+05 3.586986e+01 0.000000e+00 5s 18307 1.0696690e+05 0.000000e+00 0.000000e+00 5s Root relaxation: objective 1.069669e+05, 18307 iterations, 5.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 106966.901 0 2 - 106966.901 - - 6s H 0 0 110704.00000 106966.901 3.38% - 6s 0 0 106967.498 0 3 110704.000 106967.498 3.38% - 7s 0 0 106967.498 0 3 110704.000 106967.498 3.38% - 8s H 0 0 108822.00000 106967.498 1.70% - 10s H 0 0 108358.00000 106967.498 1.28% - 10s H 0 0 107970.80702 106967.498 0.93% - 10s H 0 0 107774.00000 106967.498 0.75% - 10s 0 0 106967.498 0 2 107774.000 106967.498 0.75% - 16s 0 0 106967.970 0 3 107774.000 106967.970 0.75% - 16s 0 0 106968.408 0 3 107774.000 106968.408 0.75% - 17s 0 2 107009.933 0 3 107774.000 107009.933 0.71% - 19s 1 4 107168.535 1 4 107774.000 107163.063 0.57% 420 20s H 10 8 107483.00000 107177.895 0.28% 172 21s * 13 10 11 107445.00000 107177.895 0.25% 137 21s * 29 10 14 107373.00000 107221.048 0.14% 85.4 22s H 34 10 107354.21053 107225.174 0.12% 81.1 22s * 35 10 8 107339.00000 107225.174 0.11% 79.3 22s Cutting planes: Gomory: 1 Flow cover: 4 Explored 69 nodes (32145 simplex iterations) in 23.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.073390000000e+05, best bound 1.073390000000e+05, gap 0.0%