
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:40:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo118.43.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/grafo118.43.lp
Reading time = 0.24 seconds
: 146923 rows, 2532 columns, 442913 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 146923 rows, 2532 columns and 442913 nonzeros
Model fingerprint: 0xc38c15aa
Variable types: 49 continuous, 2483 integer (2483 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]
Presolve removed 47750 rows and 10 columns
Presolve time: 0.97s
Presolved: 99173 rows, 2522 columns, 300050 nonzeros
Variable types: 0 continuous, 2522 integer (2473 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2509 rows, 101682 columns, 302572 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21862    5.7935544e+01   0.000000e+00   9.597445e+04      5s
   43523    5.7907722e+01   0.000000e+00   3.033978e+03     10s
   63415    5.7902580e+01   0.000000e+00   1.296162e+03     15s
   75563    5.8000000e+01   0.000000e+00   0.000000e+00     18s
   75563    5.8000000e+01   0.000000e+00   0.000000e+00     18s
   75563    5.8000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 5.800000e+01, 75563 iterations, 16.79 seconds (13.84 work units)
Total elapsed time = 37.96s (DegenMoves)
Total elapsed time = 41.73s (DegenMoves)
Total elapsed time = 45.58s (DegenMoves)

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

     0     0   58.00000    0  726    8.00000   58.00000   625%     -   46s
H    0     0                      10.0000000   58.00000   480%     -   46s

Cutting planes:
  Gomory: 25
  Cover: 41
  Clique: 29
  MIR: 213
  GUB cover: 3
  Zero half: 40

Explored 1 nodes (95797 simplex iterations) in 50.24 seconds (52.98 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 8 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.800000000000e+01, gap 480.0000%

Wrote result file './lp_solutions/grafo118.43.sol'

