
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:26:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7616.43.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/grafo7616.43.lp
Reading time = 0.33 seconds
: 183716 rows, 3311 columns, 554547 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 183716 rows, 3311 columns and 554547 nonzeros
Model fingerprint: 0x5a294ba9
Variable types: 61 continuous, 3250 integer (3250 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 62612 rows and 67 columns
Presolve time: 2.17s
Presolved: 121104 rows, 3244 columns, 367279 nonzeros
Variable types: 0 continuous, 3244 integer (3183 binary)
Root relaxation presolved: 3242 rows, 124346 columns, 370523 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10177    8.6518768e+01   0.000000e+00   3.248010e+05      5s
   23536    7.5971053e+01   0.000000e+00   2.418099e+05     10s
   35720    7.5953369e+01   0.000000e+00   1.703737e+05     15s
   46493    7.5942629e+01   0.000000e+00   7.045604e+04     20s
   57725    7.5934974e+01   0.000000e+00   9.342016e+04     25s
   69425    7.5929908e+01   0.000000e+00   1.392378e+04     30s
   80493    7.5926590e+01   0.000000e+00   1.343032e+04     35s
   91526    7.5924831e+01   0.000000e+00   4.125114e+04     40s
  103043    7.5923956e+01   0.000000e+00   1.068008e+03     45s

Root relaxation: time limit, 0 iterations, 47.47 seconds (29.81 work units)

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

H    0     0                       7.0000000  319.00000  4457%     -   50s

Explored 1 nodes (0 simplex iterations) in 50.05 seconds (31.85 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 3.190000000000e+02, gap 4457.1429%

Wrote result file './lp_solutions/grafo7616.43.sol'

