
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:54:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3137.42.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/grafo3137.42.lp
Reading time = 0.48 seconds
: 234073 rows, 3008 columns, 705205 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 234073 rows, 3008 columns and 705205 nonzeros
Model fingerprint: 0x14f70799
Variable types: 57 continuous, 2951 integer (2951 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 83602 rows and 14 columns
Presolve time: 2.02s
Presolved: 150471 rows, 2994 columns, 454880 nonzeros
Variable types: 0 continuous, 2994 integer (2937 binary)
Root relaxation presolved: 2986 rows, 153457 columns, 457874 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10836    1.2306794e+02   0.000000e+00   3.930482e+05      5s
   28459    6.9839374e+01   0.000000e+00   2.427841e+05     10s
   41796    6.5765715e+01   0.000000e+00   1.164984e+05     15s
   55170    6.5716389e+01   0.000000e+00   1.132536e+05     20s
   69013    6.5681073e+01   0.000000e+00   3.838649e+04     25s
   82222    6.5665815e+01   0.000000e+00   2.355721e+04     30s
   95431    6.5656776e+01   0.000000e+00   4.481534e+04     35s
  108640    6.5650771e+01   0.000000e+00   5.758436e+03     40s
  121849    6.5647295e+01   0.000000e+00   6.468890e+03     45s

Root relaxation: time limit, 0 iterations, 47.51 seconds (27.39 work units)

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

H    0     0                       4.0000000  349.00000  8625%     -   50s

Explored 1 nodes (0 simplex iterations) in 50.05 seconds (29.39 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 3.490000000000e+02, gap 8625.0000%

Wrote result file './lp_solutions/grafo3137.42.sol'

