
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:36:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1141.47.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/grafo1141.47.lp
Reading time = 0.31 seconds
: 124882 rows, 2842 columns, 377095 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 124882 rows, 2842 columns and 377095 nonzeros
Model fingerprint: 0xde8a29d1
Variable types: 53 continuous, 2789 integer (2789 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 2.0000000
Presolve removed 25570 rows and 0 columns
Presolve time: 0.95s
Presolved: 99312 rows, 2842 columns, 300799 nonzeros
Variable types: 0 continuous, 2842 integer (2789 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2800 rows, 102112 columns, 303641 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14275    4.6968446e+01   0.000000e+00   3.147648e+05      5s
   29921    4.6941509e+01   0.000000e+00   1.261892e+04     10s
   45905    4.6929428e+01   0.000000e+00   5.424141e+03     15s
   60593    4.6922785e+01   0.000000e+00   8.157227e+03     20s
   77024    4.6919430e+01   0.000000e+00   3.628205e+03     25s
   91712    4.6918601e+01   0.000000e+00   6.336850e+00     30s
   92604    4.7000000e+01   0.000000e+00   0.000000e+00     30s
   92604    4.7000000e+01   0.000000e+00   0.000000e+00     30s
   92604    4.7000000e+01   0.000000e+00   0.000000e+00     30s

Root relaxation: objective 4.700000e+01, 92604 iterations, 29.39 seconds (22.75 work units)
Total elapsed time = 45.93s (DegenMoves)

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

     0     0   47.00000    0  441    9.00000   47.00000   422%     -   49s

Explored 1 nodes (106318 simplex iterations) in 50.03 seconds (41.67 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 2 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.700000000000e+01, gap 422.2222%

Wrote result file './lp_solutions/grafo1141.47.sol'

