
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:11:05 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3769.48.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/grafo3769.48.lp
Reading time = 0.22 seconds
: 134018 rows, 3191 columns, 404974 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 134018 rows, 3191 columns and 404974 nonzeros
Model fingerprint: 0xc50d7a3b
Variable types: 57 continuous, 3134 integer (3134 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 24096 rows and 21 columns
Presolve time: 0.97s
Presolved: 109922 rows, 3170 columns, 333313 nonzeros
Variable types: 0 continuous, 3170 integer (3113 binary)
Root relaxation presolved: 3156 rows, 113078 columns, 336483 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16610    5.7950482e+01   0.000000e+00   7.956465e+04      5s
   33487    5.7913986e+01   0.000000e+00   2.670951e+04     10s
   48535    5.7901602e+01   0.000000e+00   1.236461e+04     15s
   62671    5.7896111e+01   0.000000e+00   8.421598e+03     20s
   75895    5.7894094e+01   0.000000e+00   5.582795e+02     25s
   84978    5.8000000e+01   0.000000e+00   0.000000e+00     28s
   84978    5.8000000e+01   0.000000e+00   0.000000e+00     28s
   84978    5.8000000e+01   0.000000e+00   0.000000e+00     28s

Root relaxation: objective 5.800000e+01, 84978 iterations, 27.02 seconds (19.59 work units)

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

     0     0   58.00000    0 1683          -   58.00000      -     -   50s
H    0     0                       7.0000000   58.00000   729%     -   50s

Explored 1 nodes (95470 simplex iterations) in 50.07 seconds (39.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 5.800000000000e+01, gap 728.5714%

Wrote result file './lp_solutions/grafo3769.48.sol'

