
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 03:09:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3061.32.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/grafo3061.32.lp
Reading time = 0.66 seconds
: 357129 rows, 1976 columns, 1073265 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 357129 rows, 1976 columns and 1073265 nonzeros
Model fingerprint: 0xb16f3612
Variable types: 44 continuous, 1932 integer (1932 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 3.0000000
Presolve removed 171580 rows and 13 columns
Presolve time: 2.82s
Presolved: 185549 rows, 1963 columns, 558800 nonzeros
Variable types: 0 continuous, 1963 integer (1919 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1960 rows, 187509 columns, 560763 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    2297    3.1453849e+01   5.242183e+02   0.000000e+00      5s
    3050    4.8000000e+01   0.000000e+00   0.000000e+00      6s
    3050    4.8000000e+01   0.000000e+00   0.000000e+00      6s
    3050    4.8000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.800000e+01, 3050 iterations, 2.70 seconds (3.54 work units)
Total elapsed time = 19.92s (DegenMoves)
Total elapsed time = 24.30s (DegenMoves)
Total elapsed time = 28.84s (DegenMoves)
Total elapsed time = 30.90s (DegenMoves)

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

     0     0   48.00000    0  624    9.00000   48.00000   433%     -   32s
H    0     0                      11.0000000   48.00000   336%     -   32s
     0     0          -    0        11.00000   48.00000   336%     -   50s

Cutting planes:
  Gomory: 18
  Cover: 53
  Clique: 92
  MIR: 87
  GUB cover: 4
  Zero half: 60
  RLT: 111
  BQP: 15

Explored 1 nodes (16853 simplex iterations) in 50.03 seconds (64.57 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 9 3 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.800000000000e+01, gap 336.3636%

Wrote result file './lp_solutions/grafo3061.32.sol'

