
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:06:46 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7217.44.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/grafo7217.44.lp
Reading time = 0.18 seconds
: 96890 rows, 2354 columns, 292526 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 96890 rows, 2354 columns and 292526 nonzeros
Model fingerprint: 0xdf8cfa21
Variable types: 45 continuous, 2309 integer (2309 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 23426 rows and 18 columns
Presolve time: 0.76s
Presolved: 73464 rows, 2336 columns, 222733 nonzeros
Variable types: 0 continuous, 2336 integer (2291 binary)
Root relaxation presolved: 2336 rows, 75800 columns, 225069 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16998    4.3794485e+01   0.000000e+00   4.620626e+04      5s
   36468    4.3750706e+01   0.000000e+00   6.404672e+02     10s
   45256    4.4000000e+01   0.000000e+00   0.000000e+00     12s
   45256    4.4000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.400000e+01, 45256 iterations, 11.43 seconds (6.58 work units)
Total elapsed time = 23.42s (DegenMoves)
Total elapsed time = 38.89s (DegenMoves)
Total elapsed time = 41.49s (DegenMoves)

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

     0     0   44.00000    0  317          -   44.00000      -     -   43s
H    0     0                       6.0000000   44.00000   633%     -   45s
     0     0          -    0         6.00000   44.00000   633%     -   50s

Cutting planes:
  Gomory: 27
  Cover: 43
  Clique: 21
  MIR: 126
  StrongCG: 1
  GUB cover: 3
  Zero half: 39
  RLT: 36
  BQP: 4

Explored 1 nodes (78829 simplex iterations) in 50.13 seconds (45.34 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.400000000000e+01, gap 633.3333%

Wrote result file './lp_solutions/grafo7217.44.sol'

