
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:40:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7137.41.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/grafo7137.41.lp
Reading time = 0.24 seconds
: 151539 rows, 2968 columns, 457634 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 151539 rows, 2968 columns and 457634 nonzeros
Model fingerprint: 0x9384f9eb
Variable types: 58 continuous, 2910 integer (2910 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 38738 rows and 21 columns
Presolve time: 1.03s
Presolved: 112801 rows, 2947 columns, 342016 nonzeros
Variable types: 0 continuous, 2947 integer (2889 binary)
Root relaxation presolved: 2938 rows, 115739 columns, 344963 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16732    6.2656777e+01   0.000000e+00   5.399294e+04      5s
   34580    6.2585976e+01   0.000000e+00   3.426970e+04     10s
   52377    6.2567578e+01   0.000000e+00   2.451596e+04     15s
   70174    6.2560263e+01   0.000000e+00   4.605925e+03     20s
   87971    6.2558292e+01   0.000000e+00   1.217006e+03     25s
   91109    6.3000000e+01   0.000000e+00   0.000000e+00     26s
   91109    6.3000000e+01   0.000000e+00   0.000000e+00     26s
   91109    6.3000000e+01   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 6.300000e+01, 91109 iterations, 24.75 seconds (20.40 work units)

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

     0     0   63.00000    0 1839          -   63.00000      -     -   50s
H    0     0                       2.0000000   63.00000  3050%     -   50s

Explored 1 nodes (102571 simplex iterations) in 50.04 seconds (44.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 6.300000000000e+01, gap 3050.0000%

Wrote result file './lp_solutions/grafo7137.41.sol'

