Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:30:53 2013 Optimize a model with 2400 rows, 102800 columns and 215900 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.24s Presolved: 2300 rows, 102700 columns, 213800 nonzeros Variable types: 102200 continuous, 500 integer (500 binary) Root relaxation: objective 9.481640e+05, 6179 iterations, 0.46 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 948163.962 0 12 - 948163.962 - - 0s 0 0 948316.869 0 12 - 948316.869 - - 1s 0 0 948357.665 0 12 - 948357.665 - - 1s 0 0 948371.051 0 12 - 948371.051 - - 1s 0 0 948371.051 0 12 - 948371.051 - - 2s 0 0 948380.409 0 12 - 948380.409 - - 2s 0 0 948380.409 0 12 - 948380.409 - - 2s 0 0 948380.409 0 12 - 948380.409 - - 2s 0 0 948380.409 0 12 - 948380.409 - - 3s 0 0 948380.409 0 12 - 948380.409 - - 4s H 0 0 983075.33122 948380.409 3.53% - 4s 0 2 948410.592 0 12 983075.331 948410.592 3.53% - 5s 18 20 950361.186 15 6 983075.331 948481.815 3.52% 196 10s H 27 26 956843.02747 948481.815 0.87% 162 12s 44 36 951943.739 39 1 956843.027 948481.815 0.87% 108 15s H 54 27 953824.57082 948481.815 0.56% 88.7 15s 112 52 949533.088 5 9 953824.571 948762.590 0.53% 65.8 20s H 135 40 951993.92228 948762.590 0.34% 71.2 21s * 148 42 38 951933.15721 948762.590 0.33% 67.1 23s 163 38 cutoff 7 951933.157 948913.931 0.32% 77.6 25s H 189 18 950591.28258 949329.832 0.13% 96.5 29s 211 40 950468.813 33 1 950591.283 949329.832 0.13% 89.5 30s H 326 100 950424.69480 949698.676 0.08% 70.1 33s 363 125 949898.956 22 3 950424.695 949738.307 0.07% 64.7 35s * 370 73 29 950276.23626 949738.307 0.06% 63.9 35s Cutting planes: Flow cover: 20 Explored 430 nodes (32270 simplex iterations) in 36.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.502762362556e+05, best bound 9.501827974694e+05, gap 0.0098%