Gurobi 5.0.1 (linux64) logging started Sat Nov 17 10:03:51 2012 Optimize a model with 78079 rows, 59780 columns and 292798 nonzeros Presolve removed 505 rows and 4148 columns (presolve time = 5s) ... Presolve removed 507 rows and 4150 columns Presolve time: 7.00s Presolved: 77572 rows, 55630 columns, 286794 nonzeros Variable types: 0 continuous, 55630 integer (55630 binary) Found heuristic solution: objective 244.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 30879 3.0000922e+00 2.434091e+01 0.000000e+00 5s 34536 3.0000946e+00 3.773479e+01 0.000000e+00 10s 37239 3.0000967e+00 2.175728e+01 0.000000e+00 15s 39942 3.0000990e+00 2.771875e+02 0.000000e+00 20s 42804 3.0001012e+00 2.563065e+02 0.000000e+00 25s 45507 3.0001029e+00 5.238313e+01 0.000000e+00 30s 48369 3.0001050e+00 3.758333e+01 0.000000e+00 35s 51390 3.0001083e+00 4.060477e+01 0.000000e+00 40s 54093 3.0001117e+00 3.840876e+01 0.000000e+00 45s 56796 3.0001142e+00 2.667004e+00 0.000000e+00 50s 59340 3.0001172e+00 4.005589e-02 0.000000e+00 55s 59357 3.0000000e+00 0.000000e+00 0.000000e+00 55s Root relaxation: objective 3.000000e+00, 59357 iterations, 55.23 seconds Total elapsed time = 67.38s Total elapsed time = 88.22s Total elapsed time = 95.16s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 98s Explored 0 nodes (160675 simplex iterations) in 98.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%