
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 06:14:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3685.50.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/grafo3685.50.lp
Reading time = 0.74 seconds
: 374188 rows, 4262 columns, 1126947 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 374188 rows, 4262 columns and 1126947 nonzeros
Model fingerprint: 0x32ca363b
Variable types: 68 continuous, 4194 integer (4194 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, 7e+01]
Found heuristic solution: objective 2.0000000
Presolve removed 129917 rows and 5 columns
Presolve time: 2.88s
Presolved: 244271 rows, 4257 columns, 737814 nonzeros
Variable types: 0 continuous, 4257 integer (4189 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 4240 rows, 248511 columns, 742071 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    4422    2.7742567e+02   0.000000e+00   1.468983e+06      5s
   16610    1.8095080e+02   0.000000e+00   5.672339e+05     10s
   28908    1.5214788e+02   0.000000e+00   2.917935e+06     17s
   36753    1.3512233e+02   0.000000e+00   6.068746e+05     21s
   46931    1.0935199e+02   0.000000e+00   8.539562e+05     26s
   55048    1.0430391e+02   0.000000e+00   4.074071e+05     31s
   63996    9.3784692e+01   0.000000e+00   1.934204e+05     36s
   73335    9.1744831e+01   0.000000e+00   8.566085e+05     41s
   80480    9.1713932e+01   0.000000e+00   2.267643e+05     45s

Root relaxation: time limit, 89471 iterations, 46.66 seconds (29.06 work units)

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

     0     0          -    0        10.00000  505.00000  4950%     -   50s

Explored 1 nodes (89471 simplex iterations) in 50.05 seconds (32.03 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 5.050000000000e+02, gap 4950.0000%

Wrote result file './lp_solutions/grafo3685.50.sol'

