
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 22:15:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10403.38.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/grafo10403.38.lp
Reading time = 3.95 seconds
: 159747 rows, 2268 columns, 481282 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 159747 rows, 2268 columns and 481282 nonzeros
Model fingerprint: 0x49a7f502
Variable types: 48 continuous, 2220 integer (2220 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 2.0000000
Presolve removed 60305 rows and 29 columns
Presolve time: 2.77s
Presolved: 99442 rows, 2239 columns, 300807 nonzeros
Variable types: 0 continuous, 2239 integer (2191 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2239 rows, 101681 columns, 303046 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    4900    8.8712967e+01   0.000000e+00   4.185622e+06      5s
   17020    5.8953654e+01   0.000000e+00   1.580906e+05     10s
   26433    5.2937681e+01   0.000000e+00   7.886735e+03     15s
   35346    5.2930518e+01   0.000000e+00   1.907141e+04     20s
   44259    5.2927175e+01   0.000000e+00   4.057991e+03     25s
   53169    5.2925756e+01   0.000000e+00   9.106082e+02     30s
   62083    5.2925463e+01   0.000000e+00   6.005797e+00     35s
   64433    5.3000000e+01   0.000000e+00   0.000000e+00     36s
   64433    5.3000000e+01   0.000000e+00   0.000000e+00     36s

Root relaxation: objective 5.300000e+01, 64433 iterations, 33.27 seconds (11.06 work units)

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

     0     0   53.00000    0 1230    9.00000   53.00000   489%     -   50s

Explored 1 nodes (67603 simplex iterations) in 50.07 seconds (18.80 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 2 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.300000000000e+01, gap 488.8889%

Wrote result file './lp_solutions/grafo10403.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:40:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10403.38.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/grafo10403.38.lp
Reading time = 0.19 seconds
: 159747 rows, 2268 columns, 481282 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 159747 rows, 2268 columns and 481282 nonzeros
Model fingerprint: 0x49a7f502
Variable types: 48 continuous, 2220 integer (2220 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 2.0000000
Presolve removed 60305 rows and 29 columns
Presolve time: 0.92s
Presolved: 99442 rows, 2239 columns, 300807 nonzeros
Variable types: 0 continuous, 2239 integer (2191 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2239 rows, 101681 columns, 303046 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   29403    5.2934740e+01   0.000000e+00   3.771460e+03      5s
   60103    5.2925481e+01   0.000000e+00   6.418126e+01     10s
   64433    5.3000000e+01   0.000000e+00   0.000000e+00     11s
   64433    5.3000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 5.300000e+01, 64433 iterations, 9.80 seconds (11.06 work units)
Total elapsed time = 21.61s (DegenMoves)

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

     0     0   53.00000    0  590    9.00000   53.00000   489%     -   23s
H    0     0                      10.0000000   53.00000   430%     -   23s
     0     0   53.00000    0  861   10.00000   53.00000   430%     -   38s
     0     0   53.00000    0  827   10.00000   53.00000   430%     -   39s
     0     0          -    0        10.00000   53.00000   430%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 25
  Cover: 6
  Clique: 50
  MIR: 117
  GUB cover: 1
  Zero half: 29
  RLT: 57
  BQP: 7

Explored 1 nodes (87694 simplex iterations) in 50.01 seconds (64.02 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 2 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.300000000000e+01, gap 430.0000%

Wrote result file './lp_solutions/grafo10403.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:24:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10403.38.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/grafo10403.38.lp
Reading time = 0.27 seconds
: 159747 rows, 2268 columns, 481282 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 159747 rows, 2268 columns and 481282 nonzeros
Model fingerprint: 0x49a7f502
Variable types: 48 continuous, 2220 integer (2220 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 2.0000000
Presolve removed 60305 rows and 29 columns
Presolve time: 1.23s
Presolved: 99442 rows, 2239 columns, 300807 nonzeros
Variable types: 0 continuous, 2239 integer (2191 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2239 rows, 101681 columns, 303046 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20980    5.2945839e+01   0.000000e+00   2.618158e+04      5s
   42774    5.2927602e+01   0.000000e+00   5.337707e+03     10s
   64433    5.3000000e+01   0.000000e+00   0.000000e+00     15s
   64433    5.3000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 5.300000e+01, 64433 iterations, 13.69 seconds (11.06 work units)
Total elapsed time = 29.01s (DegenMoves)
Total elapsed time = 30.41s (DegenMoves)

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

     0     0   53.00000    0  590    9.00000   53.00000   489%     -   31s
H    0     0                      10.0000000   53.00000   430%     -   31s
     0     0          -    0        10.00000   53.00000   430%     -   50s

Cutting planes:
  Gomory: 36
  Cover: 50
  Clique: 60
  MIR: 152
  GUB cover: 8
  Zero half: 41
  RLT: 80
  BQP: 8

Explored 1 nodes (82585 simplex iterations) in 50.03 seconds (48.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 2 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.300000000000e+01, gap 430.0000%

Wrote result file './lp_solutions/grafo10403.38.sol'

