
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:59:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6140.41.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/grafo6140.41.lp
Reading time = 0.13 seconds
: 81798 rows, 2373 columns, 247523 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 81798 rows, 2373 columns and 247523 nonzeros
Model fingerprint: 0x832c7288
Variable types: 50 continuous, 2323 integer (2323 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 12632 rows and 1 columns
Presolve time: 0.46s
Presolved: 69166 rows, 2372 columns, 209969 nonzeros
Variable types: 0 continuous, 2372 integer (2322 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2348 rows, 71514 columns, 212341 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23806    5.0700428e+01   0.000000e+00   1.049590e+04      5s
   46576    5.0692745e+01   0.000000e+00   4.906181e+01     10s
   48541    5.1000000e+01   0.000000e+00   0.000000e+00     10s
   48541    5.1000000e+01   0.000000e+00   0.000000e+00     10s
   48541    5.1000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 5.100000e+01, 48541 iterations, 9.89 seconds (8.09 work units)
Total elapsed time = 22.12s (DegenMoves)
Total elapsed time = 26.61s (DegenMoves)

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

     0     0   51.00000    0  756    7.00000   51.00000   629%     -   27s
H    0     0                      10.0000000   51.00000   410%     -   27s
H    0     0                      12.0000000   51.00000   325%     -   27s
     0     0   51.00000    0 1086   12.00000   51.00000   325%     -   48s
     0     0          -    0        12.00000   51.00000   325%     -   50s

Cutting planes:
  Gomory: 3
  MIR: 68
  Zero half: 9
  RLT: 43

Explored 1 nodes (78062 simplex iterations) in 50.06 seconds (46.35 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 10 7 

Time limit reached
Best objective 1.200000000000e+01, best bound 5.100000000000e+01, gap 325.0000%

Wrote result file './lp_solutions/grafo6140.41.sol'

