
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:57:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5267.43.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/grafo5267.43.lp
Reading time = 0.25 seconds
: 131680 rows, 2803 columns, 397710 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 131680 rows, 2803 columns and 397710 nonzeros
Model fingerprint: 0x9b06883a
Variable types: 53 continuous, 2750 integer (2750 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 34736 rows and 37 columns
Presolve time: 1.10s
Presolved: 96944 rows, 2766 columns, 294077 nonzeros
Variable types: 0 continuous, 2766 integer (2713 binary)
Root relaxation presolved: 2762 rows, 99706 columns, 296843 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15952    6.6011539e+01   0.000000e+00   1.656162e+05      5s
   31422    5.3974841e+01   0.000000e+00   3.442137e+04     10s
   46438    5.3961036e+01   0.000000e+00   3.327465e+04     15s
   61256    5.3954022e+01   0.000000e+00   7.313430e+03     20s
   76039    5.3951638e+01   0.000000e+00   1.709271e+03     25s
   90201    5.3951266e+01   0.000000e+00   1.353962e+00     30s
   90223    5.4000000e+01   0.000000e+00   0.000000e+00     30s
   90223    5.4000000e+01   0.000000e+00   0.000000e+00     30s
   90223    5.4000000e+01   0.000000e+00   0.000000e+00     30s

Root relaxation: objective 5.400000e+01, 90223 iterations, 28.85 seconds (19.57 work units)

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

     0     0   54.00000    0 1796          -   54.00000      -     -   50s
H    0     0                       8.0000000   54.00000   575%     -   50s

Explored 1 nodes (99183 simplex iterations) in 50.06 seconds (36.53 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.400000000000e+01, gap 575.0000%

Wrote result file './lp_solutions/grafo5267.43.sol'

