
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:50:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5720.47.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/grafo5720.47.lp
Reading time = 0.37 seconds
: 191186 rows, 3433 columns, 576896 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 191186 rows, 3433 columns and 576896 nonzeros
Model fingerprint: 0x8a8de8b2
Variable types: 61 continuous, 3372 integer (3372 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 49144 rows and 1 columns
Presolve time: 1.38s
Presolved: 142042 rows, 3432 columns, 430073 nonzeros
Variable types: 0 continuous, 3432 integer (3371 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 3396 rows, 145438 columns, 433505 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14333    7.6044487e+01   0.000000e+00   1.187769e+06      5s
   27838    6.8970745e+01   0.000000e+00   4.543923e+05     10s
   40629    6.7952054e+01   0.000000e+00   2.033601e+05     15s
   51272    6.7941704e+01   0.000000e+00   5.886965e+05     20s
   63950    6.7932517e+01   0.000000e+00   9.086686e+05     25s
   77152    6.7925480e+01   0.000000e+00   5.223135e+04     30s
   89098    6.7920541e+01   0.000000e+00   1.843793e+05     35s
  102010    6.7916546e+01   0.000000e+00   1.174766e+05     40s
  113805    6.7913065e+01   0.000000e+00   1.811483e+04     45s

Root relaxation: time limit, 125071 iterations, 48.29 seconds (33.37 work units)

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

     0     0          -    0        11.00000  319.00000  2800%     -   50s

Explored 1 nodes (125071 simplex iterations) in 50.02 seconds (34.97 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 11 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.190000000000e+02, gap 2800.0000%

Wrote result file './lp_solutions/grafo5720.47.sol'

