Gurobi 5.0.1 (linux64) logging started Mon Feb 4 22:00:24 2013 Optimize a model with 1143325 rows, 36100 columns and 3447550 nonzeros Presolve removed 25114 rows and 18116 columns (presolve time = 6s) ... Presolve removed 30546 rows and 18152 columns (presolve time = 11s) ... Presolve removed 38404 rows and 18169 columns (presolve time = 15s) ... Presolve removed 38404 rows and 18169 columns Presolve time: 18.44s Presolved: 1104921 rows, 17931 columns, 3330834 nonzeros Variable types: 86 continuous, 17845 integer (17845 binary) Found heuristic solution: objective 799496.00000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 6640 2.8835789e+05 0.000000e+00 3.990036e+08 6s 13280 2.9451828e+05 0.000000e+00 2.269080e+09 10s 23240 3.1375405e+05 0.000000e+00 4.273111e+09 15s 33200 3.3485149e+05 0.000000e+00 3.519450e+09 20s 43160 4.0144485e+05 0.000000e+00 1.234994e+09 26s 53120 4.4503359e+05 0.000000e+00 9.692789e+09 31s 59760 4.8221990e+05 0.000000e+00 6.432621e+09 35s 68060 5.0225945e+05 0.000000e+00 9.401188e+08 41s 79680 5.0856450e+05 0.000000e+00 3.184830e+08 45s 89640 5.1271561e+05 0.000000e+00 6.087590e+08 50s 99600 5.1727811e+05 0.000000e+00 2.931853e+08 55s 109560 5.2144357e+05 0.000000e+00 2.565039e+08 60s 119520 5.2525236e+05 0.000000e+00 1.826656e+08 65s 131140 5.2941765e+05 0.000000e+00 1.856775e+08 70s 141100 5.3296589e+05 0.000000e+00 4.469747e+08 75s 151060 5.3684013e+05 0.000000e+00 1.588064e+08 81s 161020 5.4050412e+05 0.000000e+00 3.590924e+08 85s 172640 5.4422270e+05 0.000000e+00 1.358701e+08 91s 180940 5.4666936e+05 0.000000e+00 9.942611e+07 95s 189240 5.4907710e+05 0.000000e+00 5.328276e+08 100s 195880 5.5081712e+05 0.000000e+00 1.291785e+09 105s 204180 5.5228398e+05 0.000000e+00 1.919847e+08 111s 212480 5.5363983e+05 0.000000e+00 9.903584e+07 115s 222440 5.5573160e+05 0.000000e+00 1.771330e+08 121s 230740 5.5840828e+05 0.000000e+00 2.545279e+07 125s 240700 5.6179864e+05 0.000000e+00 3.264526e+07 130s 253980 5.6690769e+05 0.000000e+00 5.248545e+06 136s 262282 5.7038912e+05 0.000000e+00 2.176649e+06 141s 267262 5.7096965e+05 0.000000e+00 2.467124e+06 147s 270582 5.7106266e+05 0.000000e+00 2.903465e+05 151s 271990 5.7103060e+05 9.375000e-03 0.000000e+00 156s 271992 5.7103060e+05 0.000000e+00 0.000000e+00 156s 271992 5.7103060e+05 0.000000e+00 0.000000e+00 156s Root relaxation: objective 5.710306e+05, 271992 iterations, 155.82 seconds Total elapsed time = 180.50s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 571030.600 0 22 799496.000 571030.600 28.6% - 181s H 0 0 571050.00000 571030.600 0.00% - 182s Explored 0 nodes (272767 simplex iterations) in 182.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.710500000000e+05, best bound 5.710310000000e+05, gap 0.0033%