
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:07:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7204.41.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/grafo7204.41.lp
Reading time = 0.15 seconds
: 97391 rows, 2369 columns, 294229 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 97391 rows, 2369 columns and 294229 nonzeros
Model fingerprint: 0xcb37ddbd
Variable types: 49 continuous, 2320 integer (2320 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 22969 rows and 23 columns
Presolve time: 0.64s
Presolved: 74422 rows, 2346 columns, 225688 nonzeros
Variable types: 0 continuous, 2346 integer (2297 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2346 rows, 76768 columns, 228034 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23215    5.7942354e+01   0.000000e+00   2.236476e+04      5s
   45797    5.7928737e+01   0.000000e+00   1.681096e+03     10s
   62137    5.8000000e+01   0.000000e+00   0.000000e+00     14s
   62137    5.8000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 5.800000e+01, 62137 iterations, 13.00 seconds (11.60 work units)
Total elapsed time = 26.57s (DegenMoves)
Total elapsed time = 48.39s (DegenMoves)

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

     0     0   58.00000    0  703   10.00000   58.00000   480%     -   50s

Explored 1 nodes (96194 simplex iterations) in 50.03 seconds (64.90 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 2 

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

Wrote result file './lp_solutions/grafo7204.41.sol'

