
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:24:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7441.43.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/grafo7441.43.lp
Reading time = 0.59 seconds
: 261890 rows, 3236 columns, 788989 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 261890 rows, 3236 columns and 788989 nonzeros
Model fingerprint: 0x7ecd29a4
Variable types: 60 continuous, 3176 integer (3176 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 92306 rows and 24 columns
Presolve time: 2.39s
Presolved: 169584 rows, 3212 columns, 512517 nonzeros
Variable types: 0 continuous, 3212 integer (3152 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 3209 rows, 172793 columns, 515729 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8099    1.3093257e+02   0.000000e+00   3.037585e+06      5s
   22580    8.3519765e+01   0.000000e+00   2.705912e+05     10s
   33916    7.0684833e+01   0.000000e+00   9.267416e+05     15s
   44895    6.8623835e+01   0.000000e+00   1.006588e+05     20s
   57208    6.8576555e+01   0.000000e+00   3.702025e+04     25s
   68836    6.8560907e+01   0.000000e+00   3.659951e+04     30s
   79780    6.8553328e+01   0.000000e+00   1.711601e+04     35s
   91408    6.8549535e+01   0.000000e+00   1.039646e+04     40s
  101740    6.9000000e+01   0.000000e+00   0.000000e+00     45s
  101740    6.9000000e+01   0.000000e+00   0.000000e+00     45s
  101740    6.9000000e+01   0.000000e+00   0.000000e+00     45s

Root relaxation: objective 6.900000e+01, 101740 iterations, 42.22 seconds (24.59 work units)

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

     0     0   69.00000    0 1634    5.00000   69.00000  1280%     -   50s

Explored 1 nodes (102734 simplex iterations) in 50.08 seconds (31.57 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 6.900000000000e+01, gap 1280.0000%

Wrote result file './lp_solutions/grafo7441.43.sol'

