
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:32:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3722.40.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/grafo3722.40.lp
Reading time = 0.92 seconds
: 464865 rows, 2774 columns, 1397282 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 464865 rows, 2774 columns and 1397282 nonzeros
Model fingerprint: 0x1d899f99
Variable types: 53 continuous, 2721 integer (2721 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, 5e+01]
Presolve removed 216579 rows and 12 columns
Presolve time: 4.40s
Presolved: 248286 rows, 2762 columns, 748042 nonzeros
Variable types: 0 continuous, 2762 integer (2709 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2755 rows, 251041 columns, 750804 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    7.8638000e+02   0.000000e+00   1.109753e+06      6s
   21284    1.1482881e+02   0.000000e+00   3.612044e+05     10s
   39309    8.2996396e+01   0.000000e+00   4.809142e+05     16s
   54055    7.3927794e+01   0.000000e+00   2.896967e+06     21s
   67661    6.1871170e+01   0.000000e+00   3.660938e+05     25s
   84232    6.0804120e+01   0.000000e+00   2.137140e+05     30s
   99388    6.0770722e+01   0.000000e+00   2.033938e+04     35s
  115616    6.0752402e+01   0.000000e+00   9.785182e+03     40s
  130742    6.0742724e+01   0.000000e+00   3.969640e+03     45s

Root relaxation: time limit, 146428 iterations, 44.75 seconds (26.52 work units)

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

     0     0          -    0        10.00000  417.00000  4070%     -   50s

Explored 1 nodes (146428 simplex iterations) in 50.05 seconds (30.37 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 10 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.170000000000e+02, gap 4070.0000%

Wrote result file './lp_solutions/grafo3722.40.sol'

