
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:53:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1452.49.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/grafo1452.49.lp
Reading time = 0.71 seconds
: 372718 rows, 3687 columns, 1121776 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 372718 rows, 3687 columns and 1121776 nonzeros
Model fingerprint: 0xb95c59ac
Variable types: 62 continuous, 3625 integer (3625 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 149941 rows and 32 columns
Presolve time: 3.83s
Presolved: 222777 rows, 3655 columns, 672542 nonzeros
Variable types: 0 continuous, 3655 integer (3593 binary)
Root relaxation presolved: 3652 rows, 226429 columns, 676197 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    8.3950000e+02   0.000000e+00   7.978050e+05      6s
   16419    1.3375942e+02   0.000000e+00   1.089806e+06     11s
   28952    9.0362029e+01   0.000000e+00   7.448337e+05     15s
   39968    6.6933099e+01   0.000000e+00   1.685882e+07     20s
   50691    6.5759431e+01   0.000000e+00   2.468145e+05     25s
   61092    6.5710603e+01   0.000000e+00   1.332605e+05     30s
   71776    6.5671548e+01   0.000000e+00   8.843478e+04     35s
   82436    6.5647702e+01   0.000000e+00   5.156636e+04     40s
   92276    6.5634595e+01   0.000000e+00   4.139251e+04     45s
  102116    6.5624296e+01   0.000000e+00   3.712813e+04     50s

Root relaxation: time limit, 0 iterations, 45.46 seconds (24.87 work units)

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

H    0     0                       6.0000000  399.00000  6550%     -   50s

Explored 1 nodes (0 simplex iterations) in 50.08 seconds (28.21 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 3.990000000000e+02, gap 6550.0000%

Wrote result file './lp_solutions/grafo1452.49.sol'

