
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:32:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7410.37.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/grafo7410.37.lp
Reading time = 0.30 seconds
: 249308 rows, 2236 columns, 750011 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 249308 rows, 2236 columns and 750011 nonzeros
Model fingerprint: 0xb334220f
Variable types: 48 continuous, 2188 integer (2188 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 108483 rows and 15 columns
Presolve time: 1.39s
Presolved: 140825 rows, 2221 columns, 424884 nonzeros
Variable types: 0 continuous, 2221 integer (2173 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2209 rows, 143034 columns, 427105 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26195    5.2942077e+01   0.000000e+00   1.898182e+06      5s
   58602    4.6806652e+01   0.000000e+00   5.407982e+03     10s
   78194    4.7000000e+01   0.000000e+00   0.000000e+00     13s
   78194    4.7000000e+01   0.000000e+00   0.000000e+00     13s
   78194    4.7000000e+01   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 4.700000e+01, 78194 iterations, 11.59 seconds (11.18 work units)
Total elapsed time = 34.81s (DegenMoves)
Total elapsed time = 37.77s (DegenMoves)

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

     0     0   47.00000    0  793    9.00000   47.00000   422%     -   50s

Explored 1 nodes (99023 simplex iterations) in 50.03 seconds (79.13 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 3 

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

Wrote result file './lp_solutions/grafo7410.37.sol'

