
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:26:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7051.42.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/grafo7051.42.lp
Reading time = 0.14 seconds
: 88149 rows, 2312 columns, 266345 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 88149 rows, 2312 columns and 266345 nonzeros
Model fingerprint: 0x84ff9333
Variable types: 47 continuous, 2265 integer (2265 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 19735 rows and 27 columns
Presolve time: 0.59s
Presolved: 68414 rows, 2285 columns, 207661 nonzeros
Variable types: 0 continuous, 2285 integer (2238 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2279 rows, 70693 columns, 209946 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26222    4.9948191e+01   0.000000e+00   2.710441e+04      5s
   50642    4.9940281e+01   0.000000e+00   1.601580e+02     10s
   55482    5.0000000e+01   0.000000e+00   0.000000e+00     11s
   55482    5.0000000e+01   0.000000e+00   0.000000e+00     11s
   55482    5.0000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 5.000000e+01, 55482 iterations, 10.29 seconds (8.41 work units)
Total elapsed time = 23.06s (DegenMoves)
Total elapsed time = 26.43s (DegenMoves)
Total elapsed time = 30.04s (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   50.00000    0  715    7.00000   50.00000   614%     -   36s
H    0     0                      11.0000000   50.00000   355%     -   36s
H    0     0                      13.0000000   50.00000   285%     -   36s
     0     0          -    0        13.00000   50.00000   285%     -   50s

Cutting planes:
  Gomory: 31
  Cover: 25
  Clique: 12
  MIR: 146
  GUB cover: 4
  Zero half: 35
  RLT: 53
  BQP: 2

Explored 1 nodes (88822 simplex iterations) in 50.07 seconds (53.62 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 11 7 

Time limit reached
Best objective 1.300000000000e+01, best bound 5.000000000000e+01, gap 284.6154%

Wrote result file './lp_solutions/grafo7051.42.sol'

