
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:40:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7302.41.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/grafo7302.41.lp
Reading time = 0.24 seconds
: 126496 rows, 2517 columns, 381789 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 126496 rows, 2517 columns and 381789 nonzeros
Model fingerprint: 0xcd3258ee
Variable types: 49 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 39613 rows and 44 columns
Presolve time: 1.27s
Presolved: 86883 rows, 2473 columns, 263494 nonzeros
Variable types: 0 continuous, 2473 integer (2424 binary)
Root relaxation presolved: 2470 rows, 89353 columns, 265967 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15939    5.5940050e+01   0.000000e+00   4.764199e+04      5s
   33891    5.5913408e+01   0.000000e+00   1.259024e+04     10s
   51027    5.5908253e+01   0.000000e+00   3.504681e+03     15s
   63885    5.6000000e+01   0.000000e+00   0.000000e+00     19s
   63885    5.6000000e+01   0.000000e+00   0.000000e+00     19s
   63885    5.6000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 5.600000e+01, 63885 iterations, 17.42 seconds (11.09 work units)
Total elapsed time = 35.93s (DegenMoves)
Total elapsed time = 41.55s (DegenMoves)

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

     0     0   56.00000    0  560          -   56.00000      -     -   42s
H    0     0                       6.0000000   56.00000   833%     -   45s
     0     0          -    0         6.00000   56.00000   833%     -   50s

Cutting planes:
  Gomory: 43
  Cover: 52
  Clique: 22
  MIR: 211
  StrongCG: 1
  GUB cover: 8
  Zero half: 67
  RLT: 50
  BQP: 3

Explored 1 nodes (82422 simplex iterations) in 50.03 seconds (40.79 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 5.600000000000e+01, gap 833.3333%

Wrote result file './lp_solutions/grafo7302.41.sol'

