
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:45:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5404.44.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/grafo5404.44.lp
Reading time = 0.80 seconds
: 430934 rows, 2965 columns, 1295558 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 430934 rows, 2965 columns and 1295558 nonzeros
Model fingerprint: 0xb1e9c3da
Variable types: 52 continuous, 2913 integer (2913 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 201816 rows and 8 columns
Presolve time: 3.82s
Presolved: 229118 rows, 2957 columns, 690757 nonzeros
Variable types: 0 continuous, 2957 integer (2905 binary)
Root relaxation presolved: 2951 rows, 232069 columns, 693714 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    9.4582000e+02   0.000000e+00   7.048602e+05      6s
   21567    1.1121775e+02   0.000000e+00   2.551564e+06     10s
   37094    6.9935925e+01   0.000000e+00   3.647414e+05     15s
   51331    5.7833260e+01   0.000000e+00   2.174708e+05     20s
   66321    5.7761365e+01   0.000000e+00   9.676711e+04     25s
   80757    5.7729629e+01   0.000000e+00   8.679704e+04     30s
   96149    5.7714022e+01   0.000000e+00   2.383247e+04     35s
  111541    5.7705092e+01   0.000000e+00   7.647503e+03     40s
  126933    5.7699864e+01   0.000000e+00   3.356813e+04     45s

Root relaxation: time limit, 0 iterations, 45.48 seconds (26.94 work units)

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

H    0     0                       6.0000000  488.00000  8033%     -   50s

Explored 1 nodes (0 simplex iterations) in 50.06 seconds (30.56 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.880000000000e+02, gap 8033.3333%

Wrote result file './lp_solutions/grafo5404.44.sol'

