
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:21:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7751.44.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/grafo7751.44.lp
Reading time = 0.19 seconds
: 120873 rows, 2808 columns, 365167 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 120873 rows, 2808 columns and 365167 nonzeros
Model fingerprint: 0x4eee6824
Variable types: 54 continuous, 2754 integer (2754 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, 5e+01]
Found heuristic solution: objective 3.0000000
Presolve removed 25855 rows and 30 columns
Presolve time: 0.84s
Presolved: 95018 rows, 2778 columns, 288063 nonzeros
Variable types: 0 continuous, 2778 integer (2724 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2778 rows, 97796 columns, 290841 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19681    6.1968415e+01   0.000000e+00   2.615682e+05      5s
   38481    6.1940155e+01   0.000000e+00   3.725179e+04     10s
   56509    6.1929083e+01   0.000000e+00   2.144736e+04     15s
   74325    6.1922486e+01   0.000000e+00   1.313643e+04     20s
   92764    6.1917749e+01   0.000000e+00   4.296872e+03     25s
  111348    6.1915074e+01   0.000000e+00   7.417623e+03     30s
  129945    6.1913930e+01   0.000000e+00   7.437111e+02     35s
  148590    6.1913396e+01   0.000000e+00   2.930017e+01     40s
  154507    6.2000000e+01   0.000000e+00   0.000000e+00     42s
  154507    6.2000000e+01   0.000000e+00   0.000000e+00     42s

Root relaxation: objective 6.200000e+01, 154507 iterations, 40.76 seconds (34.25 work units)

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

     0     0   62.00000    0 1769   13.00000   62.00000   377%     -   50s

Explored 1 nodes (158763 simplex iterations) in 50.03 seconds (43.93 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 3 

Time limit reached
Best objective 1.300000000000e+01, best bound 6.200000000000e+01, gap 376.9231%

Wrote result file './lp_solutions/grafo7751.44.sol'

