Gurobi 5.0.1 (linux64) logging started Sat Nov 17 06:50:44 2012 Optimize a model with 70831 rows, 54522 columns and 265851 nonzeros Presolve removed 957 rows and 5825 columns (presolve time = 5s) ... Presolve removed 959 rows and 5827 columns Presolve time: 5.50s Presolved: 69872 rows, 48695 columns, 257096 nonzeros Variable types: 0 continuous, 48695 integer (48695 binary) Found heuristic solution: objective 233.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 38911 3.0000761e+00 2.150000e+02 0.000000e+00 5s 45254 3.0001077e+00 7.937795e+02 0.000000e+00 10s 48294 3.0001107e+00 9.711980e+01 0.000000e+00 15s 51334 3.0001124e+00 8.971803e+02 0.000000e+00 20s 54070 3.0001139e+00 2.823121e+02 0.000000e+00 25s 56958 3.0001158e+00 1.412452e+01 0.000000e+00 30s 59694 3.0001175e+00 4.034100e+01 0.000000e+00 35s 62278 3.0001190e+00 4.236409e+01 0.000000e+00 40s 64862 3.0001201e+00 1.935152e+01 0.000000e+00 45s 67446 3.0001221e+00 1.734313e+02 0.000000e+00 50s 70030 3.0001250e+00 1.529344e+02 0.000000e+00 55s 73720 3.0001313e+00 7.603518e+00 0.000000e+00 60s 74549 3.0000000e+00 0.000000e+00 0.000000e+00 61s Root relaxation: objective 3.000000e+00, 74549 iterations, 60.54 seconds Total elapsed time = 98.19s Total elapsed time = 102.80s Total elapsed time = 108.68s Total elapsed time = 112.86s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 70 233.00000 3.00000 98.7% - 113s H 0 0 3.0000000 3.00000 0.0% - 113s Explored 0 nodes (181292 simplex iterations) in 113.79 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%