
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:27:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7394.47.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/grafo7394.47.lp
Reading time = 0.24 seconds
: 136802 rows, 2758 columns, 412743 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 136802 rows, 2758 columns and 412743 nonzeros
Model fingerprint: 0x2ddb4c98
Variable types: 51 continuous, 2707 integer (2707 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 34283 rows and 33 columns
Presolve time: 1.21s
Presolved: 102519 rows, 2725 columns, 310389 nonzeros
Variable types: 0 continuous, 2725 integer (2674 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2725 rows, 105244 columns, 313114 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17248    4.1006013e+01   0.000000e+00   1.164673e+05      5s
   34375    4.0975634e+01   0.000000e+00   4.510164e+04     10s
   50791    4.0967147e+01   0.000000e+00   6.668078e+03     15s
   62489    4.1000000e+01   0.000000e+00   0.000000e+00     19s
   62489    4.1000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 4.100000e+01, 62489 iterations, 17.24 seconds (10.56 work units)
Total elapsed time = 38.03s (DegenMoves)
Total elapsed time = 42.89s (DegenMoves)

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

     0     0   41.00000    0  505    6.00000   41.00000   583%     -   45s
H    0     0                       8.0000000   41.00000   412%     -   45s
H    0     0                       9.0000000   41.00000   356%     -   45s
     0     0          -    0         9.00000   41.00000   356%     -   50s

Cutting planes:
  Gomory: 28
  Cover: 44
  Clique: 26
  MIR: 133
  StrongCG: 1
  GUB cover: 10
  Zero half: 55
  RLT: 60
  BQP: 6

Explored 1 nodes (81299 simplex iterations) in 50.04 seconds (40.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 8 6 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.100000000000e+01, gap 355.5556%

Wrote result file './lp_solutions/grafo7394.47.sol'

