Gurobi 5.0.1 (linux64) logging started Sat Nov 17 09:31:12 2012 Optimize a model with 80675 rows, 59292 columns and 300103 nonzeros Presolve removed 1473 rows and 3645 columns (presolve time = 5s) ... Presolve removed 1475 rows and 3647 columns Presolve time: 7.35s Presolved: 79200 rows, 55645 columns, 292161 nonzeros Variable types: 0 continuous, 55645 integer (55645 binary) Found heuristic solution: objective 243.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 36654 3.0000913e+00 2.428095e+02 0.000000e+00 5s 41261 3.0000979e+00 5.700000e+01 0.000000e+00 10s 44803 3.0001001e+00 1.181024e+03 0.000000e+00 15s 47540 3.0001021e+00 1.618336e+02 0.000000e+00 20s 50277 3.0001044e+00 7.408586e+01 0.000000e+00 25s 52853 3.0001062e+00 1.312730e+02 0.000000e+00 30s 55268 3.0001076e+00 1.822584e+01 0.000000e+00 35s 57522 3.0001089e+00 4.849760e+01 0.000000e+00 40s 60098 3.0001105e+00 2.386516e+01 0.000000e+00 45s 62674 3.0001121e+00 6.421635e+01 0.000000e+00 50s 65411 3.0001145e+00 1.812182e+01 0.000000e+00 55s 68148 3.0001171e+00 1.915148e+01 0.000000e+00 60s 70724 3.0001198e+00 1.286875e+02 0.000000e+00 65s 73139 3.0001224e+00 5.559744e+01 0.000000e+00 70s 76470 3.0001266e+00 2.500000e-03 0.000000e+00 75s 76486 3.0000000e+00 0.000000e+00 0.000000e+00 75s Root relaxation: objective 3.000000e+00, 76486 iterations, 75.12 seconds Total elapsed time = 150.09s Total elapsed time = 178.87s Total elapsed time = 218.61s Total elapsed time = 228.16s 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% - 230s Explored 0 nodes (345363 simplex iterations) in 230.84 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%