
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:57:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6724.46.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/grafo6724.46.lp
Reading time = 0.77 seconds
: 398130 rows, 3701 columns, 1198188 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 398130 rows, 3701 columns and 1198188 nonzeros
Model fingerprint: 0x7b61cf84
Variable types: 64 continuous, 3637 integer (3637 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 2.0000000
Presolve removed 153224 rows and 36 columns
Presolve time: 3.93s
Presolved: 244906 rows, 3665 columns, 739091 nonzeros
Variable types: 0 continuous, 3665 integer (3601 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 3662 rows, 248568 columns, 742756 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    1.0754200e+03   0.000000e+00   9.079719e+05      5s
   19728    1.4090252e+02   0.000000e+00   4.118752e+05     12s
   28834    1.1143423e+02   0.000000e+00   1.725593e+06     16s
   38974    8.9995795e+01   0.000000e+00   1.445568e+05     21s
   48699    7.9962143e+01   0.000000e+00   6.569848e+05     25s
   58440    6.8915465e+01   0.000000e+00   3.660455e+05     31s
   67378    6.8872751e+01   0.000000e+00   9.398674e+04     35s
   77554    6.6840107e+01   0.000000e+00   1.173703e+05     40s
   87709    6.5808109e+01   0.000000e+00   4.601827e+05     45s

Root relaxation: time limit, 96789 iterations, 45.65 seconds (27.95 work units)

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

     0     0          -    0         8.00000  422.00000  5175%     -   50s

Explored 1 nodes (96789 simplex iterations) in 50.05 seconds (31.55 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 2 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.220000000000e+02, gap 5175.0000%

Wrote result file './lp_solutions/grafo6724.46.sol'

