
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:59:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3629.42.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/grafo3629.42.lp
Reading time = 0.18 seconds
: 112259 rows, 2437 columns, 338863 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 112259 rows, 2437 columns and 338863 nonzeros
Model fingerprint: 0xe4174417
Variable types: 49 continuous, 2388 integer (2388 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]
Presolve removed 32020 rows and 31 columns
Presolve time: 0.79s
Presolved: 80239 rows, 2406 columns, 243370 nonzeros
Variable types: 0 continuous, 2406 integer (2357 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2403 rows, 82642 columns, 245776 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21440    5.1658357e+01   0.000000e+00   1.454636e+04      5s
   44637    5.1641923e+01   0.000000e+00   1.262125e+03     10s
   58763    5.2000000e+01   0.000000e+00   0.000000e+00     13s
   58763    5.2000000e+01   0.000000e+00   0.000000e+00     13s
   58763    5.2000000e+01   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 5.200000e+01, 58763 iterations, 12.26 seconds (10.90 work units)
Total elapsed time = 29.02s (DegenMoves)
Total elapsed time = 34.72s (DegenMoves)
Total elapsed time = 35.46s (DegenMoves)

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

     0     0   52.00000    0  772    5.00000   52.00000   940%     -   36s
H    0     0                      11.0000000   52.00000   373%     -   36s
     0     0          -    0        11.00000   52.00000   373%     -   50s

Cutting planes:
  Gomory: 28
  Cover: 33
  Clique: 7
  MIR: 96
  GUB cover: 6
  Zero half: 9
  RLT: 55

Explored 1 nodes (85209 simplex iterations) in 50.02 seconds (51.44 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 5 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.200000000000e+01, gap 372.7273%

Wrote result file './lp_solutions/grafo3629.42.sol'

