Gurobi 5.0.1 (linux64) logging started Wed Apr 24 11:45:45 2013 Optimize a model with 226650 rows, 225150 columns and 900150 nonzeros Presolve removed 9249 rows and 0 columns Presolve time: 2.36s Presolved: 217401 rows, 225150 columns, 881652 nonzeros Variable types: 225000 continuous, 150 integer (150 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 20844 1.3353713e+05 2.818118e+04 0.000000e+00 5s 28649 1.6073428e+05 5.675604e+04 0.000000e+00 10s 31938 1.7523122e+05 7.018291e+04 0.000000e+00 15s 33203 1.7897896e+05 5.525096e+05 0.000000e+00 21s 34468 1.8294292e+05 8.857620e+04 0.000000e+00 26s 35733 1.8691550e+05 1.944475e+05 0.000000e+00 31s 36745 1.8972241e+05 8.638340e+05 0.000000e+00 35s 38010 1.9363220e+05 2.539569e+05 0.000000e+00 41s 39022 1.9670705e+05 2.273267e+05 0.000000e+00 46s 40034 1.9941251e+05 2.490092e+05 0.000000e+00 50s 41552 2.0367365e+05 4.980944e+04 0.000000e+00 56s 43070 2.0563156e+05 2.663068e+05 0.000000e+00 61s 44082 2.0701924e+05 5.999737e+04 0.000000e+00 65s 45347 2.0907889e+05 2.905046e+04 0.000000e+00 71s 46359 2.1059505e+05 1.282538e+05 0.000000e+00 75s 47624 2.1181191e+05 3.605306e+04 0.000000e+00 80s 49142 2.1273198e+05 3.184273e+04 0.000000e+00 86s 50660 2.1385745e+05 1.414435e+05 0.000000e+00 91s 51925 2.1425561e+05 4.256214e+03 0.000000e+00 95s 53190 2.1443743e+05 1.975000e+01 0.000000e+00 101s 53233 2.1443743e+05 0.000000e+00 0.000000e+00 101s Root relaxation: objective 2.144374e+05, 53233 iterations, 100.87 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 214437.427 0 2 - 214437.427 - - 104s H 0 0 215298.00000 214437.427 0.40% - 105s 0 0 214437.427 0 2 215298.000 214437.427 0.40% - 107s H 0 0 214998.00000 214437.427 0.26% - 113s 0 2 214438.622 0 2 214998.000 214438.622 0.26% - 120s 1 3 214515.752 1 1 214998.000 214478.700 0.24% 1867 127s 2 4 214591.644 1 2 214998.000 214530.273 0.22% 1867 132s 3 5 214563.344 2 3 214998.000 214563.344 0.20% 1498 136s 7 8 214596.000 6 1 214998.000 214594.893 0.19% 875 140s H 9 6 214747.00000 214594.893 0.07% 738 143s H 9 6 214691.00000 214594.893 0.04% 738 143s 12 3 cutoff 3 214691.000 214657.779 0.02% 691 146s 13 2 cutoff 2 214691.000 214661.087 0.01% 778 151s 14 1 cutoff 2 214691.000 214672.953 0.01% 987 158s Cutting planes: Flow cover: 2 Explored 15 nodes (67058 simplex iterations) in 158.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.146910000000e+05, best bound 2.146729529905e+05, gap 0.0084%