
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:36:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5779.45.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/grafo5779.45.lp
Reading time = 0.23 seconds
: 142047 rows, 2508 columns, 428119 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 142047 rows, 2508 columns and 428119 nonzeros
Model fingerprint: 0x5db7596e
Variable types: 47 continuous, 2461 integer (2461 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 45022 rows and 15 columns
Presolve time: 1.06s
Presolved: 97025 rows, 2493 columns, 293527 nonzeros
Variable types: 0 continuous, 2493 integer (2446 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2478 rows, 99503 columns, 296020 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23351    4.9945225e+01   0.000000e+00   7.004198e+05      5s
   45600    4.9915677e+01   0.000000e+00   3.249296e+04     10s
   66839    4.9908924e+01   0.000000e+00   1.473687e+03     15s
   74638    5.0000000e+01   0.000000e+00   0.000000e+00     17s
   74638    5.0000000e+01   0.000000e+00   0.000000e+00     17s
   74638    5.0000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 5.000000e+01, 74638 iterations, 15.73 seconds (13.93 work units)
Total elapsed time = 34.37s (DegenMoves)
Total elapsed time = 37.28s (DegenMoves)
Total elapsed time = 40.04s (DegenMoves)

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

     0     0   50.00000    0  667   13.00000   50.00000   285%     -   41s
H    0     0                      14.0000000   50.00000   257%     -   41s
     0     0          -    0        14.00000   50.00000   257%     -   50s

Cutting planes:
  Gomory: 27
  Cover: 38
  Clique: 34
  MIR: 160
  GUB cover: 1
  Zero half: 68
  RLT: 69

Explored 1 nodes (96916 simplex iterations) in 50.02 seconds (52.82 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 14 13 2 

Time limit reached
Best objective 1.400000000000e+01, best bound 5.000000000000e+01, gap 257.1429%

Wrote result file './lp_solutions/grafo5779.45.sol'

