
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:03:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7488.46.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/grafo7488.46.lp
Reading time = 0.24 seconds
: 135090 rows, 2779 columns, 407612 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 135090 rows, 2779 columns and 407612 nonzeros
Model fingerprint: 0xffa82deb
Variable types: 51 continuous, 2728 integer (2728 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]
Found heuristic solution: objective 3.0000000
Presolve removed 37928 rows and 32 columns
Presolve time: 1.22s
Presolved: 97162 rows, 2747 columns, 294511 nonzeros
Variable types: 0 continuous, 2747 integer (2696 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2744 rows, 99906 columns, 297258 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15392    5.1958708e+01   0.000000e+00   6.052138e+04      5s
   30985    5.1929553e+01   0.000000e+00   1.074830e+04     10s
   45673    5.1920816e+01   0.000000e+00   8.974496e+03     15s
   60361    5.1917003e+01   0.000000e+00   9.679137e+03     20s
   71136    5.2000000e+01   0.000000e+00   0.000000e+00     24s
   71136    5.2000000e+01   0.000000e+00   0.000000e+00     24s
   71136    5.2000000e+01   0.000000e+00   0.000000e+00     24s

Root relaxation: objective 5.200000e+01, 71136 iterations, 22.37 seconds (13.76 work units)
Total elapsed time = 43.17s (DegenMoves)
Total elapsed time = 45.41s (DegenMoves)

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

     0     0   52.00000    0  670   10.00000   52.00000   420%     -   45s
H    0     0                      11.0000000   52.00000   373%     -   45s

Cutting planes:
  Cover: 60
  Clique: 23
  MIR: 184
  StrongCG: 2
  GUB cover: 6

Explored 1 nodes (86123 simplex iterations) in 50.07 seconds (35.01 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 10 3 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.200000000000e+01, gap 372.7273%

Wrote result file './lp_solutions/grafo7488.46.sol'

