
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:30:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1416.48.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/grafo1416.48.lp
Reading time = 0.53 seconds
: 243022 rows, 3322 columns, 732164 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 243022 rows, 3322 columns and 732164 nonzeros
Model fingerprint: 0x5616e814
Variable types: 57 continuous, 3265 integer (3265 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, 6e+01]
Found heuristic solution: objective 7.0000000
Presolve removed 82878 rows and 20 columns
Presolve time: 1.91s
Presolved: 160144 rows, 3302 columns, 484144 nonzeros
Variable types: 0 continuous, 3302 integer (3245 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 3296 rows, 163440 columns, 487446 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    9290    1.0733667e+02   0.000000e+00   1.167122e+06      5s
   24165    5.9773756e+01   0.000000e+00   1.681729e+05     10s
   36683    5.9669819e+01   0.000000e+00   7.874651e+04     15s
   49788    5.9618188e+01   0.000000e+00   1.239254e+05     20s
   62268    5.9601849e+01   0.000000e+00   1.917091e+04     25s
   74124    5.9595024e+01   0.000000e+00   1.666179e+04     30s
   85356    5.9592410e+01   0.000000e+00   3.675208e+02     35s
   93636    6.0000000e+01   0.000000e+00   0.000000e+00     39s
   93636    6.0000000e+01   0.000000e+00   0.000000e+00     39s
   93636    6.0000000e+01   0.000000e+00   0.000000e+00     39s

Root relaxation: objective 6.000000e+01, 93636 iterations, 36.91 seconds (22.53 work units)

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

     0     0   60.00000    0 1540   12.00000   60.00000   400%     -   50s

Explored 1 nodes (97506 simplex iterations) in 50.09 seconds (34.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 7 

Time limit reached
Best objective 1.200000000000e+01, best bound 6.000000000000e+01, gap 400.0000%

Wrote result file './lp_solutions/grafo1416.48.sol'

