
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:07:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3266.46.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/grafo3266.46.lp
Reading time = 0.24 seconds
: 154327 rows, 2370 columns, 464748 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 154327 rows, 2370 columns and 464748 nonzeros
Model fingerprint: 0xa167e8bb
Variable types: 45 continuous, 2325 integer (2325 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]
Presolve removed 51961 rows and 32 columns
Presolve time: 1.17s
Presolved: 102366 rows, 2338 columns, 309138 nonzeros
Variable types: 0 continuous, 2338 integer (2293 binary)
Root relaxation presolved: 2338 rows, 104704 columns, 311476 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20397    4.1962150e+01   0.000000e+00   3.648293e+05      5s
   42029    4.1937644e+01   0.000000e+00   6.661239e+03     10s
   64433    4.1928841e+01   0.000000e+00   1.131113e+04     15s
   87265    4.1925761e+01   0.000000e+00   9.923493e+02     20s
  100505    4.2000000e+01   0.000000e+00   0.000000e+00     23s
  100505    4.2000000e+01   0.000000e+00   0.000000e+00     23s

Root relaxation: objective 4.200000e+01, 100505 iterations, 21.68 seconds (18.38 work units)
Total elapsed time = 37.78s (DegenMoves)

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

     0     0   42.00000    0  574          -   42.00000      -     -   50s
H    0     0                       4.0000000   42.00000   950%     -   50s

Explored 1 nodes (121035 simplex iterations) in 50.06 seconds (58.32 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 4.200000000000e+01, gap 950.0000%

Wrote result file './lp_solutions/grafo3266.46.sol'

