
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:32:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3825.49.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/grafo3825.49.lp
Reading time = 0.47 seconds
: 276158 rows, 3630 columns, 832018 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 276158 rows, 3630 columns and 832018 nonzeros
Model fingerprint: 0x6337c33c
Variable types: 62 continuous, 3568 integer (3568 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 89854 rows and 29 columns
Presolve time: 2.31s
Presolved: 186304 rows, 3601 columns, 562951 nonzeros
Variable types: 0 continuous, 3601 integer (3539 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3586 rows, 189890 columns, 566552 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    9170    1.2264500e+02   0.000000e+00   1.567972e+06      5s
   24305    7.1831994e+01   0.000000e+00   3.121530e+05     10s
   37271    6.3708569e+01   0.000000e+00   1.698429e+05     15s
   50191    6.2658797e+01   0.000000e+00   2.294324e+04     20s
   62431    6.2641143e+01   0.000000e+00   2.508740e+04     25s
   73991    6.2634997e+01   0.000000e+00   4.066237e+03     30s
   84871    6.2632928e+01   0.000000e+00   2.214889e+03     35s
   88682    6.3000000e+01   0.000000e+00   0.000000e+00     37s
   88682    6.3000000e+01   0.000000e+00   0.000000e+00     37s
   88682    6.3000000e+01   0.000000e+00   0.000000e+00     37s

Root relaxation: objective 6.300000e+01, 88682 iterations, 34.41 seconds (24.27 work units)

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

     0     0   63.00000    0 1667    9.00000   63.00000   600%     -   50s

Explored 1 nodes (92971 simplex iterations) in 50.07 seconds (38.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 6.300000000000e+01, gap 600.0000%

Wrote result file './lp_solutions/grafo3825.49.sol'

