
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:50:43 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6241.46.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/grafo6241.46.lp
Reading time = 0.28 seconds
: 148941 rows, 3021 columns, 449683 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 148941 rows, 3021 columns and 449683 nonzeros
Model fingerprint: 0x02c2ec3e
Variable types: 56 continuous, 2965 integer (2965 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]
Found heuristic solution: objective 5.0000000
Presolve removed 34706 rows and 1 columns
Presolve time: 1.21s
Presolved: 114235 rows, 3020 columns, 346034 nonzeros
Variable types: 0 continuous, 3020 integer (2964 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2993 rows, 117228 columns, 349054 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13505    5.0777792e+01   0.000000e+00   4.612127e+05      5s
   26404    4.9681311e+01   0.000000e+00   1.733656e+05     10s
   40393    4.9623516e+01   0.000000e+00   3.579014e+04     15s
   55304    4.9597545e+01   0.000000e+00   3.363489e+04     20s
   68772    4.9588723e+01   0.000000e+00   1.866875e+03     25s
   81759    4.9586035e+01   0.000000e+00   1.839762e+02     30s
   83688    5.0000000e+01   0.000000e+00   0.000000e+00     31s
   83688    5.0000000e+01   0.000000e+00   0.000000e+00     31s
   83688    5.0000000e+01   0.000000e+00   0.000000e+00     31s

Root relaxation: objective 5.000000e+01, 83688 iterations, 29.55 seconds (17.63 work units)

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

     0     0   50.00000    0 1648    9.00000   50.00000   456%     -   50s

Explored 1 nodes (94035 simplex iterations) in 50.05 seconds (34.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 5 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.000000000000e+01, gap 455.5556%

Wrote result file './lp_solutions/grafo6241.46.sol'

