
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:48:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7624.41.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/grafo7624.41.lp
Reading time = 0.29 seconds
: 158111 rows, 2397 columns, 476430 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 158111 rows, 2397 columns and 476430 nonzeros
Model fingerprint: 0xcc384d48
Variable types: 49 continuous, 2348 integer (2348 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 54474 rows and 33 columns
Presolve time: 1.69s
Presolved: 103637 rows, 2364 columns, 313387 nonzeros
Variable types: 0 continuous, 2364 integer (2315 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2364 rows, 106001 columns, 315751 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14981    4.8901500e+01   0.000000e+00   4.941224e+04      5s
   34326    4.8845626e+01   0.000000e+00   7.642313e+03     10s
   47649    4.9000000e+01   0.000000e+00   0.000000e+00     14s
   47649    4.9000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 4.900000e+01, 47649 iterations, 12.29 seconds (7.45 work units)
Total elapsed time = 34.36s (DegenMoves)
Total elapsed time = 37.14s (DegenMoves)
Total elapsed time = 40.30s (DegenMoves)

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

     0     0   49.00000    0  440   10.00000   49.00000   390%     -   40s
H    0     0                      12.0000000   49.00000   308%     -   41s
     0     0          -    0        12.00000   49.00000   308%     -   50s

Cutting planes:
  Gomory: 40
  Cover: 39
  Clique: 12
  MIR: 173
  StrongCG: 1
  GUB cover: 9
  Zero half: 62
  RLT: 57
  BQP: 1

Explored 1 nodes (68037 simplex iterations) in 50.03 seconds (41.42 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 10 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.900000000000e+01, gap 308.3333%

Wrote result file './lp_solutions/grafo7624.41.sol'

