
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:15:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5349.39.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/grafo5349.39.lp
Reading time = 0.20 seconds
: 122350 rows, 2230 columns, 368993 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 122350 rows, 2230 columns and 368993 nonzeros
Model fingerprint: 0xdc489b0f
Variable types: 48 continuous, 2182 integer (2182 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 38971 rows and 30 columns
Presolve time: 0.94s
Presolved: 83379 rows, 2200 columns, 252414 nonzeros
Variable types: 0 continuous, 2200 integer (2152 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2197 rows, 85576 columns, 254614 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20725    5.1886195e+01   0.000000e+00   6.629224e+05      5s
   46601    5.0813889e+01   0.000000e+00   2.228805e+04     10s
   71977    5.0804018e+01   0.000000e+00   2.068817e+01     15s
   73501    5.1000000e+01   0.000000e+00   0.000000e+00     15s
   73501    5.1000000e+01   0.000000e+00   0.000000e+00     15s
   73501    5.1000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 5.100000e+01, 73501 iterations, 14.24 seconds (10.54 work units)
Total elapsed time = 27.98s (DegenMoves)
Total elapsed time = 30.11s (DegenMoves)

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

     0     0   51.00000    0  649    8.00000   51.00000   537%     -   31s
H    0     0                      10.0000000   51.00000   410%     -   31s
     0     0   51.00000    0  829   10.00000   51.00000   410%     -   48s
     0     0          -    0        10.00000   51.00000   410%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 2
  Clique: 17
  MIR: 101
  StrongCG: 1
  Zero half: 10
  RLT: 32
  BQP: 2

Explored 1 nodes (96572 simplex iterations) in 50.02 seconds (47.89 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 8 

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

Wrote result file './lp_solutions/grafo5349.39.sol'

