
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:15:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6141.42.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/grafo6141.42.lp
Reading time = 0.25 seconds
: 155152 rows, 2327 columns, 467319 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 155152 rows, 2327 columns and 467319 nonzeros
Model fingerprint: 0xd04b11cb
Variable types: 46 continuous, 2281 integer (2281 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 1.0000000
Presolve removed 56690 rows and 8 columns
Presolve time: 0.99s
Presolved: 98462 rows, 2319 columns, 297587 nonzeros
Variable types: 0 continuous, 2319 integer (2273 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2306 rows, 100768 columns, 299906 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22419    5.6895778e+01   0.000000e+00   1.072298e+06      5s
   48298    5.6816104e+01   0.000000e+00   2.370411e+03     10s
   63471    5.7000000e+01   0.000000e+00   0.000000e+00     13s
   63471    5.7000000e+01   0.000000e+00   0.000000e+00     13s
   63471    5.7000000e+01   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 5.700000e+01, 63471 iterations, 11.86 seconds (9.01 work units)
Total elapsed time = 25.48s (DegenMoves)

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

     0     0   57.00000    0  618    9.00000   57.00000   533%     -   29s
H    0     0                      10.0000000   57.00000   470%     -   29s
     0     0   57.00000    0  877   10.00000   57.00000   470%     -   44s
     0     0   57.00000    0  860   10.00000   57.00000   470%     -   47s
     0     0          -    0        10.00000   57.00000   470%     -   50s

Cutting planes:
  Gomory: 6
  Cover: 33
  Clique: 38
  MIR: 169
  GUB cover: 1
  Zero half: 94
  RLT: 99
  BQP: 6

Explored 1 nodes (87518 simplex iterations) in 50.02 seconds (53.01 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.700000000000e+01, gap 470.0000%

Wrote result file './lp_solutions/grafo6141.42.sol'

