Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:50:50 2013 Optimize a model with 10700 rows, 35100 columns and 90050 nonzeros Presolve removed 150 rows and 100 columns Presolve time: 0.35s Presolved: 10550 rows, 35000 columns, 79900 nonzeros Variable types: 30050 continuous, 4950 integer (4950 binary) Root relaxation: objective 2.252562e+05, 11675 iterations, 0.73 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 225256.157 0 1 - 225256.157 - - 1s 0 0 225489.575 0 3 - 225489.575 - - 1s 0 0 225500.670 0 3 - 225500.670 - - 1s 0 0 225500.794 0 3 - 225500.794 - - 1s 0 0 225500.794 0 3 - 225500.794 - - 2s 0 0 225500.794 0 3 - 225500.794 - - 2s 0 2 225506.709 0 3 - 225506.709 - - 4s 8 10 225936.702 6 2 - 225679.232 - 131 5s 75 77 227058.680 73 2 - 225679.232 - 62.6 10s 148 150 227533.013 137 1 - 225679.232 - 64.5 15s H 154 86 227571.84898 225679.232 0.83% 63.5 15s 251 146 227538.998 67 1 227571.849 225680.260 0.83% 53.0 20s H 345 69 226433.07400 225740.336 0.31% 45.5 22s 420 134 225987.477 101 1 226433.074 225740.336 0.31% 37.7 25s H 534 186 226216.22400 225740.336 0.21% 30.3 29s H 540 95 226141.10813 225740.336 0.18% 30.0 29s 572 121 226061.147 24 1 226141.108 225746.053 0.17% 29.3 30s H 609 22 225945.92372 225785.184 0.07% 28.2 30s * 610 15 10 225915.15199 225785.184 0.06% 28.2 30s Cutting planes: Gomory: 1 Flow cover: 9 Explored 643 nodes (30463 simplex iterations) in 31.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.259151519913e+05, best bound 2.259024195530e+05, gap 0.0056%