
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:16:48 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7425.44.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/grafo7425.44.lp
Reading time = 0.21 seconds
: 131857 rows, 2246 columns, 397263 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 131857 rows, 2246 columns and 397263 nonzeros
Model fingerprint: 0x835baceb
Variable types: 44 continuous, 2202 integer (2202 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 43433 rows and 21 columns
Presolve time: 0.98s
Presolved: 88424 rows, 2225 columns, 267308 nonzeros
Variable types: 0 continuous, 2225 integer (2181 binary)
Root relaxation presolved: 2219 rows, 90643 columns, 269533 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23344    3.9822589e+01   0.000000e+00   6.227061e+03      5s
   42526    4.0000000e+01   0.000000e+00   0.000000e+00      9s
   42526    4.0000000e+01   0.000000e+00   0.000000e+00      9s
   42526    4.0000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.000000e+01, 42526 iterations, 7.53 seconds (6.13 work units)
Total elapsed time = 14.24s (DegenMoves)
Total elapsed time = 24.77s (DegenMoves)
Total elapsed time = 27.85s (DegenMoves)

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

     0     0   40.00000    0  354          -   40.00000      -     -   29s
H    0     0                       5.0000000   40.00000   700%     -   30s
     0     0   40.00000    0  606    5.00000   40.00000   700%     -   37s
H    0     0                       9.0000000   40.00000   344%     -   38s
     0     0   40.00000    0  608    9.00000   40.00000   344%     -   38s
     0     0   40.00000    0  572    9.00000   40.00000   344%     -   50s

Cutting planes:
  Gomory: 8
  Lift-and-project: 43
  Cover: 7
  Clique: 18
  MIR: 98
  Zero half: 55
  RLT: 55
  BQP: 1

Explored 1 nodes (78234 simplex iterations) in 50.04 seconds (59.21 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 5 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.000000000000e+01, gap 344.4444%

Wrote result file './lp_solutions/grafo7425.44.sol'

