
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:01:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7567.45.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/grafo7567.45.lp
Reading time = 0.22 seconds
: 141554 rows, 2927 columns, 427415 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 141554 rows, 2927 columns and 427415 nonzeros
Model fingerprint: 0xb3b3a5cf
Variable types: 56 continuous, 2871 integer (2871 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, 6e+01]
Found heuristic solution: objective 1.0000000
Presolve removed 32390 rows and 0 columns
Presolve time: 0.85s
Presolved: 109164 rows, 2927 columns, 330646 nonzeros
Variable types: 0 continuous, 2927 integer (2871 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2894 rows, 112058 columns, 333573 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17269    5.2746215e+01   0.000000e+00   2.361479e+05      5s
   37476    5.2660496e+01   0.000000e+00   1.211257e+04     10s
   52570    5.3000000e+01   0.000000e+00   0.000000e+00     14s
   52570    5.3000000e+01   0.000000e+00   0.000000e+00     14s
   52570    5.3000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 5.300000e+01, 52570 iterations, 13.28 seconds (10.58 work units)
Total elapsed time = 28.21s (DegenMoves)
Total elapsed time = 31.27s (DegenMoves)

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

     0     0   53.00000    0  755    8.00000   53.00000   562%     -   33s
H    0     0                      10.0000000   53.00000   430%     -   33s
     0     0          -    0        10.00000   53.00000   430%     -   50s

Cutting planes:
  Gomory: 27
  Cover: 37
  Clique: 18
  MIR: 166
  StrongCG: 4
  Zero half: 82
  RLT: 55
  BQP: 2

Explored 1 nodes (77198 simplex iterations) in 50.02 seconds (50.61 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 8 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.300000000000e+01, gap 430.0000%

Wrote result file './lp_solutions/grafo7567.45.sol'

