
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:47:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3899.38.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/grafo3899.38.lp
Reading time = 0.56 seconds
: 353220 rows, 2639 columns, 1062274 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 353220 rows, 2639 columns and 1062274 nonzeros
Model fingerprint: 0xdd09fe33
Variable types: 52 continuous, 2587 integer (2587 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 159819 rows and 4 columns
Presolve time: 2.33s
Presolved: 193401 rows, 2635 columns, 583217 nonzeros
Variable types: 0 continuous, 2635 integer (2583 binary)
Root relaxation presolved: 2631 rows, 196032 columns, 585852 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13030    1.5292035e+02   0.000000e+00   2.456195e+05      5s
   39392    9.0421930e+01   0.000000e+00   4.160854e+05     10s
   59505    6.8846209e+01   0.000000e+00   2.593773e+05     15s
   79700    6.8784673e+01   0.000000e+00   2.711678e+04     20s
   99860    6.8768306e+01   0.000000e+00   5.854156e+03     25s
  120020    6.8764060e+01   0.000000e+00   2.157736e+00     30s
  120905    6.9000000e+01   0.000000e+00   0.000000e+00     30s
  120905    6.9000000e+01   0.000000e+00   0.000000e+00     30s
  120905    6.9000000e+01   0.000000e+00   0.000000e+00     30s

Root relaxation: objective 6.900000e+01, 120905 iterations, 27.64 seconds (20.70 work units)

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

     0     0   69.00000    0 1508          -   69.00000      -     -   50s
H    0     0                       5.0000000   69.00000  1280%     -   50s

Explored 1 nodes (128835 simplex iterations) in 50.08 seconds (43.05 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 6.900000000000e+01, gap 1280.0000%

Wrote result file './lp_solutions/grafo3899.38.sol'

