
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:05:13 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2737.41.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/grafo2737.41.lp
Reading time = 0.23 seconds
: 121915 rows, 2453 columns, 367915 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 121915 rows, 2453 columns and 367915 nonzeros
Model fingerprint: 0x50b5c926
Variable types: 49 continuous, 2404 integer (2404 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 36037 rows and 20 columns
Presolve time: 1.04s
Presolved: 85878 rows, 2433 columns, 260300 nonzeros
Variable types: 0 continuous, 2433 integer (2384 binary)
Root relaxation presolved: 2433 rows, 88311 columns, 262733 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15021    5.4813193e+01   0.000000e+00   2.237431e+05      5s
   32594    5.4723469e+01   0.000000e+00   9.954480e+03     10s
   50954    5.4699866e+01   0.000000e+00   8.156936e+03     15s
   69722    5.4692393e+01   0.000000e+00   3.482346e+02     20s
   80633    5.5000000e+01   0.000000e+00   0.000000e+00     23s
   80633    5.5000000e+01   0.000000e+00   0.000000e+00     23s

Root relaxation: objective 5.500000e+01, 80633 iterations, 21.73 seconds (13.21 work units)
Total elapsed time = 35.76s (DegenMoves)

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

     0     0   55.00000    0  376          -   55.00000      -     -   38s
H    0     0                       5.0000000   55.00000  1000%     -   39s
     0     0          -    0         5.00000   55.00000  1000%     -   50s

Cutting planes:
  Gomory: 29
  Cover: 41
  Clique: 15
  MIR: 204
  StrongCG: 1
  GUB cover: 3
  Zero half: 60
  RLT: 69
  BQP: 2

Explored 1 nodes (98853 simplex iterations) in 50.02 seconds (37.70 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 5.500000000000e+01, gap 1000.0000%

Wrote result file './lp_solutions/grafo2737.41.sol'

