
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:57:27 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4853.49.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/grafo4853.49.lp
Reading time = 0.22 seconds
: 109717 rows, 3062 columns, 331861 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 109717 rows, 3062 columns and 331861 nonzeros
Model fingerprint: 0xb60438e1
Variable types: 54 continuous, 3008 integer (3008 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 16981 rows and 122 columns
Presolve time: 0.90s
Presolved: 92736 rows, 2940 columns, 281281 nonzeros
Variable types: 0 continuous, 2940 integer (2886 binary)
Root relaxation presolved: 2940 rows, 95676 columns, 284221 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14836    4.5950127e+01   0.000000e+00   9.406160e+04      5s
   30746    4.5923955e+01   0.000000e+00   2.792709e+04     10s
   45176    4.5913084e+01   0.000000e+00   7.755288e+03     15s
   58866    4.5908157e+01   0.000000e+00   2.752668e+03     20s
   72556    4.5906870e+01   0.000000e+00   3.711884e+01     25s
   76140    4.6000000e+01   0.000000e+00   0.000000e+00     27s
   76140    4.6000000e+01   0.000000e+00   0.000000e+00     27s

Root relaxation: objective 4.600000e+01, 76140 iterations, 25.41 seconds (18.15 work units)
Total elapsed time = 44.09s (DegenMoves)
Total elapsed time = 49.71s (DegenMoves)

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

     0     0   46.00000    0  447          -   46.00000      -     -   50s
H    0     0                      11.0000000   46.00000   318%     -   50s

Explored 1 nodes (94096 simplex iterations) in 50.08 seconds (40.61 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 11 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.600000000000e+01, gap 318.1818%

Wrote result file './lp_solutions/grafo4853.49.sol'

