
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:20:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6474.46.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/grafo6474.46.lp
Reading time = 0.21 seconds
: 125575 rows, 2938 columns, 379390 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 125575 rows, 2938 columns and 379390 nonzeros
Model fingerprint: 0x58a85934
Variable types: 55 continuous, 2883 integer (2883 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 24576 rows and 0 columns
Presolve time: 0.75s
Presolved: 100999 rows, 2938 columns, 306199 nonzeros
Variable types: 0 continuous, 2938 integer (2883 binary)
Root relaxation presolved: 2905 rows, 103904 columns, 309137 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19535    5.3970290e+01   0.000000e+00   7.199261e+04      5s
   39523    5.3938530e+01   0.000000e+00   3.478959e+04     10s
   57727    5.3928451e+01   0.000000e+00   2.343123e+04     15s
   75487    5.3923809e+01   0.000000e+00   7.715884e+03     20s
   93247    5.3922695e+01   0.000000e+00   1.036076e+02     25s
   99520    5.4000000e+01   0.000000e+00   0.000000e+00     27s
   99520    5.4000000e+01   0.000000e+00   0.000000e+00     27s
   99520    5.4000000e+01   0.000000e+00   0.000000e+00     27s

Root relaxation: objective 5.400000e+01, 99520 iterations, 25.81 seconds (20.04 work units)
Total elapsed time = 49.46s (DegenMoves)

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

     0     0   54.00000    0  955          -   54.00000      -     -   50s
H    0     0                       2.0000000   54.00000  2600%     -   50s

Explored 1 nodes (116261 simplex iterations) in 50.05 seconds (43.57 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 5.400000000000e+01, gap 2600.0000%

Wrote result file './lp_solutions/grafo6474.46.sol'

