
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:21:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1630.31.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/grafo1630.31.lp
Reading time = 0.09 seconds
: 33129 rows, 1362 columns, 100492 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 33129 rows, 1362 columns and 100492 nonzeros
Model fingerprint: 0xef5a5d95
Variable types: 38 continuous, 1324 integer (1324 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 4636 rows and 33 columns
Presolve time: 0.28s
Presolved: 28493 rows, 1329 columns, 86863 nonzeros
Variable types: 0 continuous, 1329 integer (1291 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 15562 rows, 14260 columns, 61001 nonzeros


Root relaxation: objective 3.100000e+01, 2040 iterations, 0.86 seconds (0.50 work units)
Total elapsed time = 5.49s (DegenMoves)

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

     0     0   31.00000    0  317    5.00000   31.00000   520%     -    5s
H    0     0                       7.0000000   31.00000   343%     -    5s
H    0     0                       8.0000000   31.00000   287%     -    5s
H    0     0                      10.0000000   31.00000   210%     -    6s
     0     0   31.00000    0  453   10.00000   31.00000   210%     -    9s
     0     0   31.00000    0  463   10.00000   31.00000   210%     -   10s
     0     0   31.00000    0  294   10.00000   31.00000   210%     -   25s
     0     0   31.00000    0  305   10.00000   31.00000   210%     -   26s
     0     0   31.00000    0  346   10.00000   31.00000   210%     -   31s
     0     0   31.00000    0  278   10.00000   31.00000   210%     -   32s
H    0     0                      11.0000000   31.00000   182%     -   38s
     0     0   31.00000    0  270   11.00000   31.00000   182%     -   38s
     0     0   30.75000    0  231   11.00000   30.75000   180%     -   38s
     0     0   30.66667    0  314   11.00000   30.66667   179%     -   44s
     0     0   30.66667    0  285   11.00000   30.66667   179%     -   45s
     0     0   30.66667    0  412   11.00000   30.66667   179%     -   50s

Cutting planes:
  Cover: 21
  Clique: 2
  MIR: 133
  StrongCG: 4
  GUB cover: 3
  Zero half: 23
  RLT: 51

Explored 1 nodes (61402 simplex iterations) in 50.07 seconds (29.05 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 11 10 8 ... 2

Time limit reached
Best objective 1.100000000000e+01, best bound 3.000000000000e+01, gap 172.7273%

Wrote result file './lp_solutions/grafo1630.31.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 02:58:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1630.31.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/grafo1630.31.lp
Reading time = 0.08 seconds
: 33129 rows, 1362 columns, 100492 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 33129 rows, 1362 columns and 100492 nonzeros
Model fingerprint: 0xef5a5d95
Variable types: 38 continuous, 1324 integer (1324 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 4636 rows and 33 columns
Presolve time: 0.27s
Presolved: 28493 rows, 1329 columns, 86863 nonzeros
Variable types: 0 continuous, 1329 integer (1291 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 15562 rows, 14260 columns, 61001 nonzeros


Root relaxation: objective 3.100000e+01, 2040 iterations, 0.72 seconds (0.50 work units)
Total elapsed time = 5.09s (DegenMoves)

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

     0     0   31.00000    0  317    5.00000   31.00000   520%     -    5s
H    0     0                       7.0000000   31.00000   343%     -    5s
H    0     0                       8.0000000   31.00000   287%     -    5s
H    0     0                      10.0000000   31.00000   210%     -    6s
     0     0   31.00000    0  453   10.00000   31.00000   210%     -    9s
     0     0   31.00000    0  463   10.00000   31.00000   210%     -    9s
     0     0   31.00000    0  294   10.00000   31.00000   210%     -   25s
     0     0   31.00000    0  305   10.00000   31.00000   210%     -   25s
     0     0   31.00000    0  346   10.00000   31.00000   210%     -   30s
     0     0   31.00000    0  278   10.00000   31.00000   210%     -   30s
H    0     0                      11.0000000   31.00000   182%     -   37s
     0     0   31.00000    0  270   11.00000   31.00000   182%     -   37s
     0     0   30.75000    0  231   11.00000   30.75000   180%     -   37s
     0     0   30.66667    0  314   11.00000   30.66667   179%     -   43s
     0     0   30.66667    0  285   11.00000   30.66667   179%     -   44s
     0     0   30.66667    0  397   11.00000   30.66667   179%     -   50s

Cutting planes:
  Cover: 21
  Clique: 2
  MIR: 133
  StrongCG: 4
  GUB cover: 3
  Zero half: 23
  RLT: 51

Explored 1 nodes (64005 simplex iterations) in 50.05 seconds (30.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 11 10 8 ... 2

Time limit reached
Best objective 1.100000000000e+01, best bound 3.000000000000e+01, gap 172.7273%

Wrote result file './lp_solutions/grafo1630.31.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 20 04:01:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1630.31.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/grafo1630.31.lp
Reading time = 0.06 seconds
: 33129 rows, 1362 columns, 100492 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 33129 rows, 1362 columns and 100492 nonzeros
Model fingerprint: 0xef5a5d95
Variable types: 38 continuous, 1324 integer (1324 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 4636 rows and 33 columns
Presolve time: 0.25s
Presolved: 28493 rows, 1329 columns, 86863 nonzeros
Variable types: 0 continuous, 1329 integer (1291 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 15562 rows, 14260 columns, 61001 nonzeros


Root relaxation: objective 3.100000e+01, 2040 iterations, 0.64 seconds (0.50 work units)

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

     0     0   31.00000    0  317    5.00000   31.00000   520%     -    4s
H    0     0                       7.0000000   31.00000   343%     -    4s
H    0     0                       8.0000000   31.00000   287%     -    4s
H    0     0                      10.0000000   31.00000   210%     -    5s
     0     0   31.00000    0  453   10.00000   31.00000   210%     -    7s
     0     0   31.00000    0  463   10.00000   31.00000   210%     -    8s
     0     0   31.00000    0  294   10.00000   31.00000   210%     -   21s
     0     0   31.00000    0  305   10.00000   31.00000   210%     -   21s
     0     0   31.00000    0  346   10.00000   31.00000   210%     -   25s
     0     0   31.00000    0  278   10.00000   31.00000   210%     -   25s
H    0     0                      11.0000000   31.00000   182%     -   30s
     0     0   31.00000    0  270   11.00000   31.00000   182%     -   30s
     0     0   30.75000    0  231   11.00000   30.75000   180%     -   30s
     0     0   30.66667    0  314   11.00000   30.66667   179%     -   36s
     0     0   30.66667    0  285   11.00000   30.66667   179%     -   36s
H    0     0                      12.0000000   30.66667   156%     -   45s
H    0     0                      13.0000000   30.66667   136%     -   45s
     0     0   30.50000    0  375   13.00000   30.50000   135%     -   45s
     0     0   30.50000    0  381   13.00000   30.50000   135%     -   47s
     0     0   30.50000    0  423   13.00000   30.50000   135%     -   50s

Cutting planes:
  Lift-and-project: 2
  Cover: 23
  Clique: 2
  MIR: 167
  StrongCG: 4
  Zero half: 28
  RLT: 49

Explored 1 nodes (74994 simplex iterations) in 50.05 seconds (35.64 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 13 12 11 ... 2

Time limit reached
Best objective 1.300000000000e+01, best bound 3.000000000000e+01, gap 130.7692%

Wrote result file './lp_solutions/grafo1630.31.sol'

