Gurobi 5.0.1 (linux64) logging started Wed Apr 24 10:31:40 2013 Optimize a model with 1210 rows, 121110 columns and 242110 nonzeros Presolve time: 0.23s Presolved: 1210 rows, 121110 columns, 242110 nonzeros Variable types: 121000 continuous, 110 integer (110 binary) Root relaxation: objective 1.472759e+05, 4783 iterations, 0.26 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 147275.879 0 6 - 147275.879 - - 0s H 0 0 155137.00000 147275.879 5.07% - 0s H 0 0 150534.00000 147275.879 2.16% - 1s 0 0 147447.211 0 5 150534.000 147447.211 2.05% - 1s 0 0 147480.189 0 6 150534.000 147480.189 2.03% - 1s 0 0 147496.147 0 4 150534.000 147496.147 2.02% - 1s 0 0 147499.179 0 4 150534.000 147499.179 2.02% - 1s 0 0 147500.080 0 4 150534.000 147500.080 2.02% - 2s 0 0 147500.157 0 3 150534.000 147500.157 2.02% - 2s 0 0 147500.157 0 3 150534.000 147500.157 2.02% - 2s H 0 0 150466.00000 147500.157 1.97% - 3s 0 0 147500.157 0 6 150466.000 147500.157 1.97% - 3s 0 0 147500.157 0 5 150466.000 147500.157 1.97% - 4s 0 0 147500.157 0 5 150466.000 147500.157 1.97% - 4s 0 0 147500.157 0 4 150466.000 147500.157 1.97% - 4s 0 0 147500.157 0 4 150466.000 147500.157 1.97% - 4s 0 0 147500.157 0 4 150466.000 147500.157 1.97% - 4s 0 0 147500.157 0 3 150466.000 147500.157 1.97% - 5s 0 0 147500.157 0 3 150466.000 147500.157 1.97% - 5s 0 2 147513.725 0 3 150466.000 147513.725 1.96% - 5s H 15 7 148655.00000 147772.697 0.59% 55.4 6s H 23 4 148304.00000 147772.697 0.36% 37.2 7s * 24 2 23 148209.00000 147772.697 0.29% 36.0 7s Cutting planes: Implied bound: 108 Flow cover: 6 Explored 32 nodes (11127 simplex iterations) in 7.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.482090000000e+05, best bound 1.482090000000e+05, gap 0.0%