Gurobi 5.0.1 (linux64) logging started Mon Feb 4 21:07:17 2013 Optimize a model with 818975 rows, 28900 columns and 2470950 nonzeros Presolve removed 20968 rows and 14496 columns (presolve time = 6s) ... Presolve removed 25441 rows and 14522 columns (presolve time = 10s) ... Presolve removed 25441 rows and 14522 columns Presolve time: 12.50s Presolved: 793534 rows, 14378 columns, 2393792 nonzeros Variable types: 79 continuous, 14299 integer (14299 binary) Found heuristic solution: objective 590813.00000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8100 2.0674779e+05 0.000000e+00 2.036915e+09 6s 16200 3.5050375e+05 0.000000e+00 6.026784e+08 11s 22950 3.5082646e+05 0.000000e+00 2.672350e+09 15s 31050 3.5198344e+05 0.000000e+00 7.009624e+08 20s 39150 3.5246970e+05 0.000000e+00 7.999569e+08 25s 47250 3.5391375e+05 0.000000e+00 1.189647e+09 31s 54000 3.5517203e+05 0.000000e+00 7.108914e+08 35s 62100 3.5570593e+05 0.000000e+00 9.591793e+08 41s 68850 3.5754144e+05 0.000000e+00 3.493428e+08 45s 78300 3.5856975e+05 0.000000e+00 7.060736e+08 51s 85050 3.6021875e+05 0.000000e+00 5.801476e+08 55s 94500 3.6124044e+05 0.000000e+00 2.625088e+08 60s 102600 3.6348245e+05 0.000000e+00 4.633549e+09 65s 113400 3.6485093e+05 0.000000e+00 3.998930e+08 70s 120150 3.6618002e+05 0.000000e+00 6.002204e+09 75s 129600 3.6934253e+05 0.000000e+00 1.599009e+09 81s 141813 3.7144980e+05 0.000000e+00 2.464900e+08 85s 154052 3.7381030e+05 0.000000e+00 5.779917e+09 90s 166210 3.7740884e+05 0.000000e+00 2.886082e+08 95s 179710 3.8096569e+05 0.000000e+00 2.367616e+08 100s 191860 3.8417934e+05 0.000000e+00 1.581422e+08 105s 204010 3.8827967e+05 0.000000e+00 3.854607e+08 110s 218865 3.9671807e+05 0.000000e+00 6.058968e+07 115s 235065 4.0583568e+05 0.000000e+00 1.532299e+07 120s 248565 4.1267280e+05 0.000000e+00 9.079654e+06 125s 262065 4.1838715e+05 0.000000e+00 6.705833e+06 131s 267465 4.1918917e+05 0.000000e+00 7.012858e+04 135s 268100 4.1916622e+05 0.000000e+00 0.000000e+00 137s 268100 4.1916622e+05 0.000000e+00 0.000000e+00 137s Root relaxation: objective 4.191662e+05, 268100 iterations, 137.46 seconds Total elapsed time = 155.50s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 419166.222 0 16 590813.000 419166.222 29.1% - 157s H 0 0 419189.00000 419166.222 0.01% - 157s Explored 0 nodes (269080 simplex iterations) in 157.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.191890000000e+05, best bound 4.191670000000e+05, gap 0.0052%