
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:33:48 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3160.48.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/grafo3160.48.lp
Reading time = 0.44 seconds
: 227856 rows, 3322 columns, 686683 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 227856 rows, 3322 columns and 686683 nonzeros
Model fingerprint: 0xf5657993
Variable types: 58 continuous, 3264 integer (3264 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 76232 rows and 25 columns
Presolve time: 2.11s
Presolved: 151624 rows, 3297 columns, 458596 nonzeros
Variable types: 0 continuous, 3297 integer (3239 binary)
Root relaxation presolved: 3291 rows, 154915 columns, 461893 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10084    8.9339003e+01   0.000000e+00   1.102556e+07      5s
   24995    6.3027064e+01   0.000000e+00   3.899585e+05     10s
   36426    5.9956620e+01   0.000000e+00   1.083976e+05     15s
   47631    5.9929853e+01   0.000000e+00   1.250904e+05     20s
   58757    5.9915668e+01   0.000000e+00   2.762129e+04     25s
   69872    5.9905806e+01   0.000000e+00   4.787748e+04     30s
   80987    5.9899025e+01   0.000000e+00   7.248618e+04     35s
   92102    5.9894230e+01   0.000000e+00   2.469311e+05     40s
  103217    5.9891093e+01   0.000000e+00   7.823056e+03     45s

Root relaxation: time limit, 0 iterations, 47.46 seconds (29.82 work units)

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

H    0     0                       4.0000000  345.00000  8525%     -   50s

Explored 1 nodes (0 simplex iterations) in 50.06 seconds (31.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 3.450000000000e+02, gap 8525.0000%

Wrote result file './lp_solutions/grafo3160.48.sol'

