
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:32:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2254.48.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/grafo2254.48.lp
Reading time = 0.45 seconds
: 233228 rows, 3638 columns, 703375 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 233228 rows, 3638 columns and 703375 nonzeros
Model fingerprint: 0x2f43eeaa
Variable types: 63 continuous, 3575 integer (3575 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 66904 rows and 23 columns
Presolve time: 2.24s
Presolved: 166324 rows, 3615 columns, 503121 nonzeros
Variable types: 0 continuous, 3615 integer (3552 binary)
Root relaxation presolved: 3608 rows, 169932 columns, 506736 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    6876    1.1703370e+02   0.000000e+00   1.830999e+06      5s
   19831    6.7956993e+01   0.000000e+00   3.334913e+05     10s
   28924    6.5902325e+01   0.000000e+00   3.074650e+05     15s
   36681    6.5883303e+01   0.000000e+00   3.113159e+05     20s
   46274    6.5867784e+01   0.000000e+00   2.642252e+04     25s
   54814    6.5858936e+01   0.000000e+00   2.575430e+05     30s
   64582    6.5850558e+01   0.000000e+00   3.213444e+04     35s
   74591    6.5844550e+01   0.000000e+00   2.699122e+04     40s
   83711    6.5839831e+01   0.000000e+00   7.950848e+03     45s
   93476    6.5835884e+01   0.000000e+00   1.579083e+04     50s

Root relaxation: time limit, 0 iterations, 47.17 seconds (30.41 work units)

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

H    0     0                       9.0000000  335.00000  3622%     -   50s

Explored 1 nodes (0 simplex iterations) in 50.08 seconds (32.53 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.350000000000e+02, gap 3622.2222%

Wrote result file './lp_solutions/grafo2254.48.sol'

