
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 03:36:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11623.43.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/grafo11623.43.lp
Reading time = 0.15 seconds
: 74189 rows, 2301 columns, 224407 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 74189 rows, 2301 columns and 224407 nonzeros
Model fingerprint: 0xc115d35f
Variable types: 47 continuous, 2254 integer (2254 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 10320 rows and 0 columns
Presolve time: 0.66s
Presolved: 63869 rows, 2301 columns, 193870 nonzeros
Variable types: 0 continuous, 2301 integer (2254 binary)
Root relaxation presolved: 2262 rows, 66131 columns, 196171 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17776    4.3761479e+01   0.000000e+00   8.561613e+03      5s
   22120    4.4000000e+01   0.000000e+00   0.000000e+00      6s
   22120    4.4000000e+01   0.000000e+00   0.000000e+00      6s
   22120    4.4000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.400000e+01, 22120 iterations, 5.32 seconds (2.91 work units)
Total elapsed time = 14.61s (DegenMoves)
Total elapsed time = 15.08s (DegenMoves)

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

     0     0   44.00000    0  488          -   44.00000      -     -   15s
H    0     0                       4.0000000   44.00000  1000%     -   15s
H    0     0                       7.0000000   44.00000   529%     -   15s
H    0     0                       8.0000000   44.00000   450%     -   17s
     0     0   44.00000    0  864    8.00000   44.00000   450%     -   27s
H    0     0                       9.0000000   44.00000   389%     -   28s
     0     0   44.00000    0  810    9.00000   44.00000   389%     -   30s
     0     0   44.00000    0  832    9.00000   44.00000   389%     -   50s

Cutting planes:
  Gomory: 6
  Lift-and-project: 26
  Cover: 20
  Clique: 1
  MIR: 114
  StrongCG: 1
  Zero half: 18
  RLT: 39

Explored 1 nodes (46730 simplex iterations) in 50.11 seconds (28.19 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 7 4 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.400000000000e+01, gap 388.8889%

Wrote result file './lp_solutions/grafo11623.43.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:45:42 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11623.43.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/grafo11623.43.lp
Reading time = 0.12 seconds
: 74189 rows, 2301 columns, 224407 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 74189 rows, 2301 columns and 224407 nonzeros
Model fingerprint: 0xc115d35f
Variable types: 47 continuous, 2254 integer (2254 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 10320 rows and 0 columns
Presolve time: 0.40s
Presolved: 63869 rows, 2301 columns, 193870 nonzeros
Variable types: 0 continuous, 2301 integer (2254 binary)
Root relaxation presolved: 2262 rows, 66131 columns, 196171 nonzeros


Root relaxation: objective 4.400000e+01, 22120 iterations, 3.56 seconds (2.91 work units)
Total elapsed time = 10.19s (DegenMoves)

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

     0     0   44.00000    0  488          -   44.00000      -     -   10s
H    0     0                       4.0000000   44.00000  1000%     -   10s
H    0     0                       7.0000000   44.00000   529%     -   10s
H    0     0                       8.0000000   44.00000   450%     -   12s
     0     0   44.00000    0  864    8.00000   44.00000   450%     -   18s
H    0     0                       9.0000000   44.00000   389%     -   19s
     0     0   44.00000    0  810    9.00000   44.00000   389%     -   19s
H    0     0                      10.0000000   44.00000   340%     -   40s
     0     0   44.00000    0  732   10.00000   44.00000   340%     -   40s
     0     0   44.00000    0  708   10.00000   44.00000   340%     -   43s
     0     0          -    0        10.00000   44.00000   340%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 23
  Clique: 1
  MIR: 181
  StrongCG: 1
  Zero half: 71
  RLT: 73

Explored 1 nodes (60545 simplex iterations) in 50.07 seconds (43.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 10 9 8 ... 4

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

Wrote result file './lp_solutions/grafo11623.43.sol'

