Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:34:46 2013 Optimize a model with 89488 rows, 88548 columns and 353628 nonzeros Presolve removed 94 rows and 0 columns Presolve time: 0.44s Presolved: 89394 rows, 88548 columns, 353534 nonzeros Variable types: 88454 continuous, 94 integer (94 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8054 7.1885407e+04 5.687469e+04 0.000000e+00 5s 9924 7.2764298e+04 8.656226e+00 0.000000e+00 10s 9937 7.2764365e+04 0.000000e+00 0.000000e+00 10s Root relaxation: objective 7.276436e+04, 9937 iterations, 10.22 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 72764.3645 0 67 - 72764.3645 - - 11s H 0 0 114655.00000 72764.3645 36.5% - 16s H 0 0 95628.000000 72764.3645 23.9% - 54s 0 0 88231.3272 0 22 95628.0000 88231.3272 7.73% - 74s 0 0 92378.7245 0 11 95628.0000 92378.7245 3.40% - 80s H 0 0 95417.000000 92378.7245 3.18% - 80s 0 0 93013.7476 0 3 95417.0000 93013.7476 2.52% - 82s H 0 0 94795.000000 93013.7476 1.88% - 82s H 0 0 93110.000000 93013.7476 0.10% - 84s 0 0 93013.7476 0 60 93110.0000 93013.7476 0.10% - 96s 0 0 93013.7476 0 21 93110.0000 93013.7476 0.10% - 142s 0 0 93013.7476 0 7 93110.0000 93013.7476 0.10% - 146s 0 0 93034.7402 0 5 93110.0000 93034.7402 0.08% - 148s 0 0 93043.3193 0 3 93110.0000 93043.3193 0.07% - 149s 0 0 93050.7190 0 2 93110.0000 93050.7190 0.06% - 149s 0 0 93050.7190 0 2 93110.0000 93050.7190 0.06% - 150s 0 2 93050.7821 0 2 93110.0000 93050.7821 0.06% - 151s Cutting planes: Gomory: 1 Implied bound: 75 Explored 11 nodes (41396 simplex iterations) in 153.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.311000000000e+04, best bound 9.310699679076e+04, gap 0.0032%