Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:31:39 2013 Optimize a model with 6600 rows, 110300 columns and 235500 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.49s Presolved: 6500 rows, 110200 columns, 230400 nonzeros Variable types: 105200 continuous, 5000 integer (5000 binary) Root relaxation: objective 7.918217e+05, 8345 iterations, 0.80 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 791821.709 0 4 - 791821.709 - - 1s 0 0 791895.416 0 4 - 791895.416 - - 3s 0 0 791930.998 0 6 - 791930.998 - - 3s 0 0 791944.220 0 4 - 791944.220 - - 3s 0 0 791944.220 0 4 - 791944.220 - - 4s 0 0 791944.776 0 4 - 791944.776 - - 4s 0 0 791947.122 0 4 - 791947.122 - - 4s 0 0 791947.130 0 4 - 791947.130 - - 5s 0 0 791947.384 0 4 - 791947.384 - - 5s 0 0 791947.594 0 4 - 791947.594 - - 5s 0 0 791947.673 0 4 - 791947.673 - - 6s 0 0 791947.789 0 4 - 791947.789 - - 6s 0 0 791947.801 0 4 - 791947.801 - - 7s 0 0 791947.821 0 4 - 791947.821 - - 7s 0 0 791947.831 0 4 - 791947.831 - - 8s 0 0 791947.831 0 4 - 791947.831 - - 9s H 0 0 803907.97236 791947.831 1.49% - 10s 0 2 791947.831 0 4 803907.972 791947.831 1.49% - 11s 7 9 800903.582 4 4 803907.972 792581.158 1.41% 536 15s 22 22 803609.117 11 6 803907.972 792581.158 1.41% 356 20s H 27 11 793845.64239 792581.158 0.16% 322 21s * 30 8 16 793357.35859 792581.158 0.10% 301 22s * 47 2 5 793200.24980 793024.070 0.02% 215 24s Cutting planes: Implied bound: 33 Flow cover: 15 Explored 56 nodes (23609 simplex iterations) in 24.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.932002498024e+05, best bound 7.932002498024e+05, gap 0.0%