
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:23:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6129.45.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/grafo6129.45.lp
Reading time = 0.27 seconds
: 141920 rows, 2516 columns, 427840 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 141920 rows, 2516 columns and 427840 nonzeros
Model fingerprint: 0x04d81266
Variable types: 48 continuous, 2468 integer (2468 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 42707 rows and 17 columns
Presolve time: 1.33s
Presolved: 99213 rows, 2499 columns, 300087 nonzeros
Variable types: 0 continuous, 2499 integer (2451 binary)
Root relaxation presolved: 2499 rows, 101712 columns, 302586 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14618    4.7881917e+01   0.000000e+00   1.244375e+05      5s
   32762    4.5745860e+01   0.000000e+00   3.445641e+04     10s
   47348    4.5728937e+01   0.000000e+00   4.203536e+03     15s
   61231    4.6000000e+01   0.000000e+00   0.000000e+00     19s
   61231    4.6000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 4.600000e+01, 61231 iterations, 17.62 seconds (10.10 work units)
Total elapsed time = 38.40s (DegenMoves)
Total elapsed time = 40.61s (DegenMoves)

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

     0     0   46.00000    0  418          -   46.00000      -     -   45s
H    0     0                       9.0000000   46.00000   411%     -   45s
H    0     0                      12.0000000   46.00000   283%     -   45s
     0     0          -    0        12.00000   46.00000   283%     -   50s

Cutting planes:
  Gomory: 33
  Cover: 50
  Clique: 19
  MIR: 113
  GUB cover: 7
  Zero half: 50
  RLT: 52
  BQP: 5

Explored 1 nodes (79895 simplex iterations) in 50.03 seconds (39.19 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 9 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.600000000000e+01, gap 283.3333%

Wrote result file './lp_solutions/grafo6129.45.sol'

