
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:45:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5364.47.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/grafo5364.47.lp
Reading time = 0.24 seconds
: 119192 rows, 2765 columns, 359891 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 119192 rows, 2765 columns and 359891 nonzeros
Model fingerprint: 0x7f3d29bb
Variable types: 51 continuous, 2714 integer (2714 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 26092 rows and 26 columns
Presolve time: 1.30s
Presolved: 93100 rows, 2739 columns, 282084 nonzeros
Variable types: 0 continuous, 2739 integer (2688 binary)
Root relaxation presolved: 2733 rows, 95833 columns, 284823 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13915    5.0802231e+01   0.000000e+00   1.023118e+05      5s
   32552    5.0708231e+01   0.000000e+00   2.302499e+05     10s
   47600    5.0694439e+01   0.000000e+00   3.245290e+03     15s
   57104    5.0692434e+01   0.000000e+00   2.549483e+03     20s
   60736    5.1000000e+01   0.000000e+00   0.000000e+00     22s
   60736    5.1000000e+01   0.000000e+00   0.000000e+00     22s
   60736    5.1000000e+01   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 5.100000e+01, 60736 iterations, 20.36 seconds (11.13 work units)
Total elapsed time = 38.02s (DegenMoves)
Total elapsed time = 40.94s (DegenMoves)

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

     0     0   51.00000    0  510          -   51.00000      -     -   45s
H    0     0                      10.0000000   51.00000   410%     -   45s
H    0     0                      12.0000000   51.00000   325%     -   45s
     0     0          -    0        12.00000   51.00000   325%     -   50s

Cutting planes:
  Gomory: 25
  Cover: 41
  Clique: 15
  MIR: 229
  GUB cover: 6
  Zero half: 87
  RLT: 67

Explored 1 nodes (80009 simplex iterations) in 50.02 seconds (36.87 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 5.100000000000e+01, gap 325.0000%

Wrote result file './lp_solutions/grafo5364.47.sol'

