
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:15:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5708.48.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/grafo5708.48.lp
Reading time = 0.79 seconds
: 456908 rows, 4485 columns, 1375652 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 456908 rows, 4485 columns and 1375652 nonzeros
Model fingerprint: 0x25656a76
Variable types: 73 continuous, 4412 integer (4412 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, 7e+01]
Presolve removed 162855 rows and 27 columns
Presolve time: 3.63s
Presolved: 294053 rows, 4458 columns, 887695 nonzeros
Variable types: 0 continuous, 4458 integer (4385 binary)
Root relaxation presolved: 4437 rows, 298490 columns, 892153 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    1.1680600e+03   0.000000e+00   8.270161e+05      6s
   14731    1.7350897e+02   0.000000e+00   4.982386e+06     10s
   26784    1.4892523e+02   0.000000e+00   4.467722e+06     17s
   33727    1.2750322e+02   0.000000e+00   4.320670e+05     20s
   42887    1.1208289e+02   0.000000e+00   3.772162e+06     26s
   51826    1.0576849e+02   0.000000e+00   3.198614e+06     31s
   59027    9.9725007e+01   0.000000e+00   1.701538e+06     35s
   69105    9.4682060e+01   0.000000e+00   7.165469e+05     40s
   78417    9.2648482e+01   0.000000e+00   1.187676e+05     45s

Root relaxation: time limit, 0 iterations, 45.60 seconds (29.46 work units)

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

H    0     0                       1.0000000  466.00000      -     -   50s

Explored 1 nodes (0 simplex iterations) in 50.08 seconds (33.63 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 1 

Time limit reached
Best objective 1.000000000000e+00, best bound 4.660000000000e+02, gap 46500.0000%

Wrote result file './lp_solutions/grafo5708.48.sol'

