
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:26:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7026.42.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/grafo7026.42.lp
Reading time = 0.67 seconds
: 315251 rows, 2685 columns, 948249 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 315251 rows, 2685 columns and 948249 nonzeros
Model fingerprint: 0x724723d8
Variable types: 51 continuous, 2634 integer (2634 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, 5e+01]
Presolve removed 136516 rows and 10 columns
Presolve time: 2.69s
Presolved: 178735 rows, 2675 columns, 539039 nonzeros
Variable types: 0 continuous, 2675 integer (2624 binary)
Root relaxation presolved: 2662 rows, 181397 columns, 541714 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    5429    1.3456998e+02   0.000000e+00   3.068887e+05      5s
   26958    6.4247194e+01   0.000000e+00   1.183911e+05     10s
   43288    5.3865474e+01   0.000000e+00   1.927788e+05     15s
   58777    5.3779685e+01   0.000000e+00   8.997841e+04     20s
   74177    5.3759765e+01   0.000000e+00   7.713416e+03     25s
   89577    5.3751715e+01   0.000000e+00   1.878100e+03     30s
  102935    5.4000000e+01   0.000000e+00   0.000000e+00     35s
  102935    5.4000000e+01   0.000000e+00   0.000000e+00     35s
  102935    5.4000000e+01   0.000000e+00   0.000000e+00     35s

Root relaxation: objective 5.400000e+01, 102935 iterations, 31.41 seconds (18.70 work units)

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

     0     0   54.00000    0 1462          -   54.00000      -     -   50s
H    0     0                       6.0000000   54.00000   800%     -   50s

Explored 1 nodes (109306 simplex iterations) in 50.11 seconds (34.64 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 5.400000000000e+01, gap 800.0000%

Wrote result file './lp_solutions/grafo7026.42.sol'

