
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:53:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7388.50.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo7388.50.lp
Reading time = 0.26 seconds
: 145442 rows, 3394 columns, 439458 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 145442 rows, 3394 columns and 439458 nonzeros
Model fingerprint: 0x75e95f1f
Variable types: 60 continuous, 3334 integer (3334 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 6e+01]
Presolve removed 21662 rows and 1 columns
Presolve time: 0.90s
Presolved: 123780 rows, 3393 columns, 374854 nonzeros
Variable types: 0 continuous, 3393 integer (3333 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 3351 rows, 127131 columns, 378247 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16102    5.9987855e+01   0.000000e+00   1.642374e+05      5s
   32544    5.9966228e+01   0.000000e+00   4.624079e+04     10s
   47061    5.9956232e+01   0.000000e+00   2.657109e+04     15s
   61101    5.9950239e+01   0.000000e+00   1.303747e+04     20s
   74673    5.9946865e+01   0.000000e+00   6.875497e+04     25s
   87777    5.9944785e+01   0.000000e+00   1.718477e+03     30s
  101349    5.9943633e+01   0.000000e+00   6.774139e+02     35s
  114921    5.9943159e+01   0.000000e+00   7.294873e+01     40s
  118044    6.0000000e+01   0.000000e+00   0.000000e+00     41s
  118044    6.0000000e+01   0.000000e+00   0.000000e+00     41s
  118044    6.0000000e+01   0.000000e+00   0.000000e+00     41s

Root relaxation: objective 6.000000e+01, 118044 iterations, 40.15 seconds (32.89 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   60.00000    0 1935   12.00000   60.00000   400%     -   50s

Explored 1 nodes (121207 simplex iterations) in 50.05 seconds (42.59 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 12 

Time limit reached
Best objective 1.200000000000e+01, best bound 6.000000000000e+01, gap 400.0000%

Wrote result file './lp_solutions/grafo7388.50.sol'

