
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:22:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10234.39.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/grafo10234.39.lp
Reading time = 0.17 seconds
: 105243 rows, 2181 columns, 317643 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 105243 rows, 2181 columns and 317643 nonzeros
Model fingerprint: 0x8d8a2a96
Variable types: 45 continuous, 2136 integer (2136 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 33374 rows and 23 columns
Presolve time: 0.76s
Presolved: 71869 rows, 2158 columns, 218133 nonzeros
Variable types: 0 continuous, 2158 integer (2113 binary)
Root relaxation presolved: 2158 rows, 74027 columns, 220291 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21537    4.3931360e+01   0.000000e+00   7.175022e+04      5s
   46549    4.3912152e+01   0.000000e+00   7.422215e+03     10s
   71912    4.3906997e+01   0.000000e+00   4.546066e+00     15s
   73640    4.4000000e+01   0.000000e+00   0.000000e+00     15s
   73640    4.4000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 4.400000e+01, 73640 iterations, 14.53 seconds (11.81 work units)
Total elapsed time = 24.62s (DegenMoves)
Total elapsed time = 25.19s (DegenMoves)

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

     0     0   44.00000    0  390          -   44.00000      -     -   25s
H    0     0                       9.0000000   44.00000   389%     -   26s
     0     0   44.00000    0  729    9.00000   44.00000   389%     -   35s
H    0     0                      10.0000000   44.00000   340%     -   36s
     0     0   44.00000    0  731   10.00000   44.00000   340%     -   36s
     0     0   44.00000    0  495   10.00000   44.00000   340%     -   50s

Cutting planes:
  Gomory: 4
  Cover: 11
  Clique: 22
  MIR: 142
  StrongCG: 1
  Zero half: 35
  RLT: 67
  BQP: 6

Explored 1 nodes (100194 simplex iterations) in 50.09 seconds (45.78 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 9 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.400000000000e+01, gap 340.0000%

Wrote result file './lp_solutions/grafo10234.39.sol'

