
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:37:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6441.41.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/grafo6441.41.lp
Reading time = 0.20 seconds
: 113696 rows, 2358 columns, 343138 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 113696 rows, 2358 columns and 343138 nonzeros
Model fingerprint: 0x4e659287
Variable types: 48 continuous, 2310 integer (2310 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 2.0000000
Presolve removed 35108 rows and 29 columns
Presolve time: 1.03s
Presolved: 78588 rows, 2329 columns, 238414 nonzeros
Variable types: 0 continuous, 2329 integer (2281 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2329 rows, 80917 columns, 240743 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16601    4.7737704e+01   0.000000e+00   9.563985e+04      5s
   35508    4.7651749e+01   0.000000e+00   2.794744e+04     10s
   54021    4.7638221e+01   0.000000e+00   6.166533e+02     15s
   60409    4.8000000e+01   0.000000e+00   0.000000e+00     17s
   60409    4.8000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 4.800000e+01, 60409 iterations, 15.64 seconds (9.54 work units)
Total elapsed time = 28.50s (DegenMoves)
Total elapsed time = 30.04s (DegenMoves)

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

     0     0   48.00000    0  507    7.00000   48.00000   586%     -   32s
H    0     0                      10.0000000   48.00000   380%     -   32s
     0     0   48.00000    0  774   10.00000   48.00000   380%     -   48s
     0     0          -    0        10.00000   48.00000   380%     -   50s

Cutting planes:
  Gomory: 4
  Cover: 2
  Clique: 12
  MIR: 74
  GUB cover: 1
  Zero half: 11
  RLT: 36
  BQP: 3

Explored 1 nodes (81831 simplex iterations) in 50.04 seconds (39.39 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 7 2 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.800000000000e+01, gap 380.0000%

Wrote result file './lp_solutions/grafo6441.41.sol'

