
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:45:08 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3618.38.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/grafo3618.38.lp
Reading time = 0.90 seconds
: 564603 rows, 2580 columns, 1696375 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 564603 rows, 2580 columns and 1696375 nonzeros
Model fingerprint: 0x1f1080d5
Variable types: 51 continuous, 2529 integer (2529 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]
Found heuristic solution: objective 3.0000000
Presolve removed 268745 rows and 2 columns
Presolve time: 3.97s
Presolved: 295858 rows, 2578 columns, 890359 nonzeros
Variable types: 0 continuous, 2578 integer (2527 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2571 rows, 298429 columns, 892937 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    8.7600000e+02   0.000000e+00   2.044959e+06      6s
   34754    1.2522444e+02   0.000000e+00   6.986762e+05     11s
   58868    8.5493115e+01   0.000000e+00   1.402086e+06     16s
   75942    6.2987911e+01   0.000000e+00   3.078010e+05     20s
   97075    5.9932497e+01   0.000000e+00   2.200617e+05     25s
  115662    5.9869136e+01   0.000000e+00   1.004952e+05     30s
  135772    5.9837925e+01   0.000000e+00   7.080072e+04     35s
  157057    5.9824699e+01   0.000000e+00   1.708913e+04     40s
  177032    5.9819622e+01   0.000000e+00   4.479291e+04     45s

Root relaxation: time limit, 196494 iterations, 45.52 seconds (33.20 work units)

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

     0     0          -    0         9.00000  416.00000  4522%     -   50s

Explored 1 nodes (196494 simplex iterations) in 50.04 seconds (37.67 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 3 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.160000000000e+02, gap 4522.2222%

Wrote result file './lp_solutions/grafo3618.38.sol'

