
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:00:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6329.44.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/grafo6329.44.lp
Reading time = 0.36 seconds
: 190568 rows, 2706 columns, 574086 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 190568 rows, 2706 columns and 574086 nonzeros
Model fingerprint: 0xee8cc416
Variable types: 52 continuous, 2654 integer (2654 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 -0.0000000
Presolve removed 65299 rows and 30 columns
Presolve time: 1.82s
Presolved: 125269 rows, 2676 columns, 378526 nonzeros
Variable types: 0 continuous, 2676 integer (2624 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2676 rows, 127945 columns, 381202 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   12382    7.0886851e+01   0.000000e+00   2.389951e+07      5s
   28420    5.5936064e+01   0.000000e+00   4.633087e+04     10s
   43305    5.5918641e+01   0.000000e+00   6.515472e+04     15s
   58501    5.5909987e+01   0.000000e+00   2.561327e+04     20s
   72853    5.5906472e+01   0.000000e+00   7.898273e+02     25s
   85647    5.6000000e+01   0.000000e+00   0.000000e+00     30s
   85647    5.6000000e+01   0.000000e+00   0.000000e+00     30s

Root relaxation: objective 5.600000e+01, 85647 iterations, 27.75 seconds (20.70 work units)
Total elapsed time = 30.17s (DegenMoves)

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

     0     0   56.00000    0 1612    9.00000   56.00000   522%     -   50s

Explored 1 nodes (93657 simplex iterations) in 50.07 seconds (39.48 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 -0 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.600000000000e+01, gap 522.2222%

Wrote result file './lp_solutions/grafo6329.44.sol'

