
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:22:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6164.41.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/grafo6164.41.lp
Reading time = 0.22 seconds
: 135682 rows, 2452 columns, 409180 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 135682 rows, 2452 columns and 409180 nonzeros
Model fingerprint: 0x95988610
Variable types: 50 continuous, 2402 integer (2402 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 -0.0000000
Presolve removed 42319 rows and 39 columns
Presolve time: 1.01s
Presolved: 93363 rows, 2413 columns, 282700 nonzeros
Variable types: 0 continuous, 2413 integer (2363 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2410 rows, 95773 columns, 285113 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20481    5.1889821e+01   0.000000e+00   6.173033e+04      5s
   42167    5.1785019e+01   0.000000e+00   8.800247e+04     10s
   61630    5.2000000e+01   0.000000e+00   0.000000e+00     14s
   61630    5.2000000e+01   0.000000e+00   0.000000e+00     14s
   61630    5.2000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 5.200000e+01, 61630 iterations, 13.38 seconds (10.11 work units)
Total elapsed time = 27.69s (DegenMoves)
Total elapsed time = 30.51s (DegenMoves)

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

     0     0   52.00000    0  716    8.00000   52.00000   550%     -   32s
     0     0          -    0         8.00000   52.00000   550%     -   50s

Cutting planes:
  Gomory: 34
  Cover: 19
  Clique: 15
  MIR: 91
  GUB cover: 6
  Zero half: 25
  RLT: 52
  BQP: 5

Explored 1 nodes (85934 simplex iterations) in 50.02 seconds (50.40 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 -0 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.200000000000e+01, gap 550.0000%

Wrote result file './lp_solutions/grafo6164.41.sol'

