
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:11:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3121.47.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/grafo3121.47.lp
Reading time = 0.19 seconds
: 106107 rows, 2507 columns, 320254 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 106107 rows, 2507 columns and 320254 nonzeros
Model fingerprint: 0x17511040
Variable types: 46 continuous, 2461 integer (2461 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 28037 rows and 58 columns
Presolve time: 0.77s
Presolved: 78070 rows, 2449 columns, 236511 nonzeros
Variable types: 0 continuous, 2449 integer (2403 binary)
Root relaxation presolved: 2443 rows, 80513 columns, 238960 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19051    4.1898730e+01   0.000000e+00   3.991869e+04      5s
   37377    4.1884177e+01   0.000000e+00   2.082300e+03     10s
   45969    4.2000000e+01   0.000000e+00   0.000000e+00     12s
   45969    4.2000000e+01   0.000000e+00   0.000000e+00     12s
   45969    4.2000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.200000e+01, 45969 iterations, 11.49 seconds (7.34 work units)
Total elapsed time = 23.15s (DegenMoves)
Total elapsed time = 25.11s (DegenMoves)

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

     0     0   42.00000    0  454          -   42.00000      -     -   25s
H    0     0                       5.0000000   42.00000   740%     -   27s
     0     0   42.00000    0  767    5.00000   42.00000   740%     -   36s
H    0     0                      10.0000000   42.00000   320%     -   36s
     0     0   42.00000    0  787   10.00000   42.00000   320%     -   37s
     0     0   42.00000    0  801   10.00000   42.00000   320%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 5
  Clique: 14
  MIR: 115
  StrongCG: 1
  Zero half: 99
  RLT: 61
  BQP: 3

Explored 1 nodes (72908 simplex iterations) in 50.04 seconds (38.03 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 5 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.200000000000e+01, gap 320.0000%

Wrote result file './lp_solutions/grafo3121.47.sol'

