
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:14:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6391.43.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/grafo6391.43.lp
Reading time = 0.30 seconds
: 183291 rows, 3140 columns, 553012 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 183291 rows, 3140 columns and 553012 nonzeros
Model fingerprint: 0xee775254
Variable types: 60 continuous, 3080 integer (3080 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, 6e+01]
Found heuristic solution: objective -0.0000000
Presolve removed 50773 rows and 39 columns
Presolve time: 1.47s
Presolved: 132518 rows, 3101 columns, 401142 nonzeros
Variable types: 0 continuous, 3101 integer (3041 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 3095 rows, 135613 columns, 404243 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15555    8.3938968e+01   0.000000e+00   3.738125e+05      5s
   32654    6.7830904e+01   0.000000e+00   6.498077e+05     10s
   49244    6.6731717e+01   0.000000e+00   6.919151e+04     15s
   66268    6.6703721e+01   0.000000e+00   6.837081e+04     20s
   82760    6.6692581e+01   0.000000e+00   1.443515e+04     25s
   98720    6.6687897e+01   0.000000e+00   2.429731e+03     30s
  109955    6.7000000e+01   0.000000e+00   0.000000e+00     34s
  109955    6.7000000e+01   0.000000e+00   0.000000e+00     34s
  109955    6.7000000e+01   0.000000e+00   0.000000e+00     34s

Root relaxation: objective 6.700000e+01, 109955 iterations, 32.01 seconds (25.06 work units)

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

     0     0   67.00000    0 1781    8.00000   67.00000   738%     -   50s

Explored 1 nodes (116787 simplex iterations) in 50.04 seconds (42.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 -0 

Time limit reached
Best objective 8.000000000000e+00, best bound 6.700000000000e+01, gap 737.5000%

Wrote result file './lp_solutions/grafo6391.43.sol'

