
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:38:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7376.45.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/grafo7376.45.lp
Reading time = 0.75 seconds
: 362881 rows, 3574 columns, 1092327 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 362881 rows, 3574 columns and 1092327 nonzeros
Model fingerprint: 0x46ff8709
Variable types: 62 continuous, 3512 integer (3512 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 140257 rows and 28 columns
Presolve time: 3.30s
Presolved: 222624 rows, 3546 columns, 672160 nonzeros
Variable types: 0 continuous, 3546 integer (3484 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 3537 rows, 226161 columns, 675706 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    1773    3.4062586e+02   0.000000e+00   2.047196e+06      5s
   21664    1.2085014e+02   0.000000e+00   1.035220e+06     10s
   34716    8.8987802e+01   0.000000e+00   6.062154e+05     15s
   46421    7.5968740e+01   0.000000e+00   4.073096e+05     20s
   57005    6.6954607e+01   0.000000e+00   2.110592e+05     25s
   68359    6.6940052e+01   0.000000e+00   2.240717e+05     31s
   78528    6.6931148e+01   0.000000e+00   1.039763e+05     35s
   90409    6.6923319e+01   0.000000e+00   3.095247e+05     41s
  100360    6.6918516e+01   0.000000e+00   3.753222e+04     45s

Root relaxation: time limit, 110214 iterations, 46.00 seconds (28.82 work units)

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

     0     0          -    0         8.00000  469.00000  5762%     -   50s

Explored 1 nodes (110214 simplex iterations) in 50.04 seconds (32.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.690000000000e+02, gap 5762.5000%

Wrote result file './lp_solutions/grafo7376.45.sol'

