
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 22:07:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10341.41.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/grafo10341.41.lp
Reading time = 2.31 seconds
: 83845 rows, 2233 columns, 253455 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 83845 rows, 2233 columns and 253455 nonzeros
Model fingerprint: 0x062434cd
Variable types: 45 continuous, 2188 integer (2188 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 20720 rows and 14 columns (presolve time = 5s) ...
Presolve removed 20720 rows and 14 columns
Presolve time: 5.93s
Presolved: 63125 rows, 2219 columns, 191722 nonzeros
Variable types: 0 continuous, 2219 integer (2174 binary)
Root relaxation presolved: 2212 rows, 65337 columns, 193941 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    2.6479070e+02   0.000000e+00   7.260889e+04     11s
    4169    5.4071854e+01   0.000000e+00   6.208016e+05     15s
   12485    4.9966194e+01   0.000000e+00   2.668997e+05     20s
   23497    4.9957545e+01   0.000000e+00   1.783540e+03     25s
   33565    5.0000000e+01   0.000000e+00   0.000000e+00     30s
   33565    5.0000000e+01   0.000000e+00   0.000000e+00     30s
   33565    5.0000000e+01   0.000000e+00   0.000000e+00     30s

Root relaxation: objective 5.000000e+01, 33565 iterations, 22.23 seconds (4.54 work units)
Total elapsed time = 44.62s (DegenMoves)

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

     0     0   50.00000    0  561          -   50.00000      -     -   50s
H    0     0                      11.0000000   50.00000   355%     -   50s

Explored 1 nodes (44207 simplex iterations) in 50.05 seconds (14.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 11 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.000000000000e+01, gap 354.5455%

Wrote result file './lp_solutions/grafo10341.41.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:51:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10341.41.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/grafo10341.41.lp
Reading time = 0.13 seconds
: 83845 rows, 2233 columns, 253455 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 83845 rows, 2233 columns and 253455 nonzeros
Model fingerprint: 0x062434cd
Variable types: 45 continuous, 2188 integer (2188 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 20720 rows and 14 columns
Presolve time: 0.47s
Presolved: 63125 rows, 2219 columns, 191722 nonzeros
Variable types: 0 continuous, 2219 integer (2174 binary)
Root relaxation presolved: 2212 rows, 65337 columns, 193941 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   28843    4.9956872e+01   0.000000e+00   8.508097e+01      5s
   33565    5.0000000e+01   0.000000e+00   0.000000e+00      6s
   33565    5.0000000e+01   0.000000e+00   0.000000e+00      6s
   33565    5.0000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 5.000000e+01, 33565 iterations, 5.32 seconds (4.54 work units)
Total elapsed time = 11.82s (DegenMoves)
Total elapsed time = 24.24s (DegenMoves)
Total elapsed time = 25.30s (DegenMoves)

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

     0     0   50.00000    0  331          -   50.00000      -     -   26s
H    0     0                      11.0000000   50.00000   355%     -   26s
     0     0   50.00000    0  706   11.00000   50.00000   355%     -   34s
H    0     0                      12.0000000   50.00000   317%     -   34s
     0     0   50.00000    0  708   12.00000   50.00000   317%     -   34s
     0     0   50.00000    0  733   12.00000   50.00000   317%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 47
  Cover: 12
  Clique: 20
  MIR: 137
  Zero half: 32
  RLT: 69
  BQP: 4

Explored 1 nodes (74943 simplex iterations) in 50.07 seconds (52.88 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 11 

Time limit reached
Best objective 1.200000000000e+01, best bound 5.000000000000e+01, gap 316.6667%

Wrote result file './lp_solutions/grafo10341.41.sol'

