
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:18:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6270.42.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/grafo6270.42.lp
Reading time = 0.21 seconds
: 126293 rows, 2415 columns, 380948 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 126293 rows, 2415 columns and 380948 nonzeros
Model fingerprint: 0x646d305a
Variable types: 49 continuous, 2366 integer (2366 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 37302 rows and 28 columns
Presolve time: 0.94s
Presolved: 88991 rows, 2387 columns, 269422 nonzeros
Variable types: 0 continuous, 2387 integer (2338 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2384 rows, 91375 columns, 271809 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22459    5.0959735e+01   0.000000e+00   7.241983e+04      5s
   45314    5.0941346e+01   0.000000e+00   1.946361e+03     10s
   65717    5.1000000e+01   0.000000e+00   0.000000e+00     14s
   65717    5.1000000e+01   0.000000e+00   0.000000e+00     14s
   65717    5.1000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 5.100000e+01, 65717 iterations, 13.44 seconds (11.18 work units)
Total elapsed time = 40.18s (DegenMoves)

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

     0     0   51.00000    0  887   10.00000   51.00000   410%     -   50s

Explored 1 nodes (90011 simplex iterations) in 50.04 seconds (55.65 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 1 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.100000000000e+01, gap 410.0000%

Wrote result file './lp_solutions/grafo6270.42.sol'

