
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:03:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5687.43.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/grafo5687.43.lp
Reading time = 0.35 seconds
: 176312 rows, 2482 columns, 531041 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 176312 rows, 2482 columns and 531041 nonzeros
Model fingerprint: 0x20f1b763
Variable types: 48 continuous, 2434 integer (2434 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 66761 rows and 18 columns
Presolve time: 1.57s
Presolved: 109551 rows, 2464 columns, 331115 nonzeros
Variable types: 0 continuous, 2464 integer (2416 binary)
Root relaxation presolved: 2464 rows, 112015 columns, 333579 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14216    5.7804886e+01   0.000000e+00   1.628172e+05      5s
   30782    5.0711774e+01   0.000000e+00   3.823601e+04     10s
   48122    5.0686985e+01   0.000000e+00   5.784386e+04     15s
   64952    5.0680409e+01   0.000000e+00   6.704346e+02     20s
   74658    5.1000000e+01   0.000000e+00   0.000000e+00     23s
   74658    5.1000000e+01   0.000000e+00   0.000000e+00     23s

Root relaxation: objective 5.100000e+01, 74658 iterations, 21.21 seconds (12.66 work units)

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

     0     0   51.00000    0 1435          -   51.00000      -     -   50s
H    0     0                       5.0000000   51.00000   920%     -   50s

Explored 1 nodes (88631 simplex iterations) in 50.05 seconds (37.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 5.100000000000e+01, gap 920.0000%

Wrote result file './lp_solutions/grafo5687.43.sol'

