
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:27:46 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7172.40.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/grafo7172.40.lp
Reading time = 0.20 seconds
: 120545 rows, 2357 columns, 363729 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 120545 rows, 2357 columns and 363729 nonzeros
Model fingerprint: 0x9da37e4f
Variable types: 49 continuous, 2308 integer (2308 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]
Found heuristic solution: objective 2.0000000
Presolve removed 36786 rows and 10 columns
Presolve time: 0.74s
Presolved: 83759 rows, 2347 columns, 253721 nonzeros
Variable types: 0 continuous, 2347 integer (2298 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2340 rows, 86099 columns, 256068 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20806    6.0773264e+01   0.000000e+00   6.026442e+04      5s
   44971    6.0719391e+01   0.000000e+00   2.472472e+04     10s
   59601    6.1000000e+01   0.000000e+00   0.000000e+00     13s
   59601    6.1000000e+01   0.000000e+00   0.000000e+00     13s
   59601    6.1000000e+01   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 6.100000e+01, 59601 iterations, 12.48 seconds (10.34 work units)
Total elapsed time = 24.27s (DegenMoves)
Total elapsed time = 32.34s (DegenMoves)

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

     0     0   61.00000    0  589    8.00000   61.00000   662%     -   34s
H    0     0                      11.0000000   61.00000   455%     -   34s
     0     0          -    0        11.00000   61.00000   455%     -   50s

Cutting planes:
  Gomory: 47
  Cover: 46
  Clique: 30
  MIR: 169
  StrongCG: 2
  GUB cover: 2
  Zero half: 25
  RLT: 79
  BQP: 2

Explored 1 nodes (89325 simplex iterations) in 50.02 seconds (57.34 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 8 2 

Time limit reached
Best objective 1.100000000000e+01, best bound 6.100000000000e+01, gap 454.5455%

Wrote result file './lp_solutions/grafo7172.40.sol'

