
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:14:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7259.44.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/grafo7259.44.lp
Reading time = 0.44 seconds
: 275142 rows, 3134 columns, 828538 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 275142 rows, 3134 columns and 828538 nonzeros
Model fingerprint: 0x804f1138
Variable types: 58 continuous, 3076 integer (3076 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 101533 rows and 27 columns
Presolve time: 1.99s
Presolved: 173609 rows, 3107 columns, 524437 nonzeros
Variable types: 0 continuous, 3107 integer (3049 binary)
Root relaxation presolved: 3098 rows, 176707 columns, 527544 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13897    8.9826466e+01   0.000000e+00   1.988318e+05      5s
   32358    6.6495318e+01   0.000000e+00   3.779953e+05     10s
   49209    5.7735032e+01   0.000000e+00   2.207875e+05     15s
   66539    5.7679984e+01   0.000000e+00   6.790576e+04     20s
   83867    5.7661779e+01   0.000000e+00   7.636291e+03     25s
  101195    5.7654010e+01   0.000000e+00   3.842173e+03     30s
  117801    5.7650689e+01   0.000000e+00   2.177946e+03     35s
  126505    5.8000000e+01   0.000000e+00   0.000000e+00     38s
  126505    5.8000000e+01   0.000000e+00   0.000000e+00     38s
  126505    5.8000000e+01   0.000000e+00   0.000000e+00     38s

Root relaxation: objective 5.800000e+01, 126505 iterations, 35.38 seconds (27.14 work units)

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

     0     0   58.00000    0 1736          -   58.00000      -     -   50s
H    0     0                       4.0000000   58.00000  1350%     -   50s

Explored 1 nodes (132585 simplex iterations) in 50.07 seconds (42.62 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 5.800000000000e+01, gap 1350.0000%

Wrote result file './lp_solutions/grafo7259.44.sol'

