
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:14:43 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5507.46.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/grafo5507.46.lp
Reading time = 0.31 seconds
: 189174 rows, 3051 columns, 570275 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 189174 rows, 3051 columns and 570275 nonzeros
Model fingerprint: 0xbf7c0885
Variable types: 55 continuous, 2996 integer (2996 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 59321 rows and 26 columns
Presolve time: 1.40s
Presolved: 129853 rows, 3025 columns, 392932 nonzeros
Variable types: 0 continuous, 3025 integer (2970 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3022 rows, 132875 columns, 395957 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16603    7.3743826e+01   0.000000e+00   5.683526e+05      5s
   33523    6.0624269e+01   0.000000e+00   2.444996e+05     10s
   50732    6.0587453e+01   0.000000e+00   1.656976e+04     15s
   67833    6.0574871e+01   0.000000e+00   4.233293e+03     20s
   84927    6.0569575e+01   0.000000e+00   2.872048e+03     25s
  102021    6.0568200e+01   0.000000e+00   1.292740e+02     30s
  104426    6.1000000e+01   0.000000e+00   0.000000e+00     31s
  104426    6.1000000e+01   0.000000e+00   0.000000e+00     31s
  104426    6.1000000e+01   0.000000e+00   0.000000e+00     31s

Root relaxation: objective 6.100000e+01, 104426 iterations, 29.23 seconds (24.94 work units)

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

     0     0   61.00000    0 1871    9.00000   61.00000   578%     -   50s

Explored 1 nodes (113790 simplex iterations) in 50.07 seconds (45.28 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 6.100000000000e+01, gap 577.7778%

Wrote result file './lp_solutions/grafo5507.46.sol'

