Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:33:29 2013 Optimize a model with 11600 rows, 120300 columns and 270500 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.82s Presolved: 11500 rows, 120200 columns, 260400 nonzeros Variable types: 110200 continuous, 10000 integer (10000 binary) Root relaxation: objective 9.481640e+05, 13691 iterations, 1.83 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 948163.962 0 8 - 948163.962 - - 3s 0 0 948323.303 0 8 - 948323.303 - - 4s 0 0 948339.994 0 8 - 948339.994 - - 5s 0 0 948342.834 0 8 - 948342.834 - - 5s 0 0 948343.521 0 8 - 948343.521 - - 6s 0 0 948343.526 0 8 - 948343.526 - - 6s 0 0 948343.526 0 8 - 948343.526 - - 7s 0 0 948343.526 0 8 - 948343.526 - - 8s 0 0 948343.526 0 8 - 948343.526 - - 8s 0 0 948343.526 0 8 - 948343.526 - - 9s 0 0 948343.526 0 8 - 948343.526 - - 10s 0 2 948343.526 0 8 - 948343.526 - - 16s 8 10 950598.176 4 2 - 948601.110 - 433 20s 18 20 951871.123 9 4 - 948617.489 - 366 25s 31 33 950205.993 16 2 - 948617.489 - 385 30s * 49 13 25 950276.23626 948617.489 0.17% 304 33s 57 11 cutoff 5 950276.236 948617.489 0.17% 300 35s 111 3 949890.551 44 2 950276.236 949890.551 0.04% 175 40s 158 3 949953.062 91 2 950276.236 949953.062 0.03% 125 45s 199 3 949998.989 129 2 950276.236 949998.989 0.03% 103 50s 244 3 950068.658 173 2 950276.236 950068.658 0.02% 85.6 55s Cutting planes: Implied bound: 63 Flow cover: 9 Explored 294 nodes (39349 simplex iterations) in 59.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.502762362556e+05, best bound 9.501849272431e+05, gap 0.0096%