
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:56:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6237.46.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/grafo6237.46.lp
Reading time = 0.15 seconds
: 93471 rows, 2716 columns, 282774 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 93471 rows, 2716 columns and 282774 nonzeros
Model fingerprint: 0xfbec9d17
Variable types: 53 continuous, 2663 integer (2663 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 9903 rows and 1 columns
Presolve time: 0.51s
Presolved: 83568 rows, 2715 columns, 253427 nonzeros
Variable types: 0 continuous, 2715 integer (2662 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2676 rows, 86244 columns, 256142 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22259    4.6958279e+01   0.000000e+00   1.392420e+05      5s
   43259    4.6943620e+01   0.000000e+00   4.255822e+03     10s
   62328    4.7000000e+01   0.000000e+00   0.000000e+00     15s
   62328    4.7000000e+01   0.000000e+00   0.000000e+00     15s
   62328    4.7000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 4.700000e+01, 62328 iterations, 14.24 seconds (11.84 work units)
Total elapsed time = 15.14s (DegenMoves)
Total elapsed time = 28.13s (DegenMoves)
Total elapsed time = 30.26s (DegenMoves)

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

     0     0   47.00000    0  522    5.00000   47.00000   840%     -   31s
H    0     0                       7.0000000   47.00000   571%     -   31s
H    0     0                      10.0000000   47.00000   370%     -   31s
     0     0   47.00000    0  818   10.00000   47.00000   370%     -   39s
     0     0   47.00000    0  810   10.00000   47.00000   370%     -   40s
     0     0   47.00000    0  836   10.00000   47.00000   370%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 1
  Cover: 16
  MIR: 170
  Zero half: 95
  RLT: 55

Explored 1 nodes (91228 simplex iterations) in 50.04 seconds (48.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 7 5 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.700000000000e+01, gap 370.0000%

Wrote result file './lp_solutions/grafo6237.46.sol'

