
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 04:26:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1890.33.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/grafo1890.33.lp
Reading time = 0.11 seconds
: 45445 rows, 1244 columns, 137135 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 45445 rows, 1244 columns and 137135 nonzeros
Model fingerprint: 0x337836c1
Variable types: 32 continuous, 1212 integer (1212 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 14121 rows and 15 columns
Presolve time: 0.42s
Presolved: 31324 rows, 1229 columns, 95002 nonzeros
Variable types: 0 continuous, 1229 integer (1197 binary)
Found heuristic solution: objective 3.0000000
Root relaxation presolved: 20908 rows, 11645 columns, 74170 nonzeros


Root relaxation: objective 3.200000e+01, 3471 iterations, 2.47 seconds (1.67 work units)
Total elapsed time = 5.32s (DegenMoves)

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

     0     0   32.00000    0  317    3.00000   32.00000   967%     -    5s
H    0     0                       7.0000000   32.00000   357%     -    5s
     0     0   32.00000    0  425    7.00000   32.00000   357%     -    9s
H    0     0                      10.0000000   32.00000   220%     -    9s
     0     0   32.00000    0  436   10.00000   32.00000   220%     -    9s
     0     0   32.00000    0  362   10.00000   32.00000   220%     -   22s
     0     0   32.00000    0  330   10.00000   32.00000   220%     -   22s
H    0     0                      11.0000000   32.00000   191%     -   28s
     0     0   32.00000    0  335   11.00000   32.00000   191%     -   28s
     0     0   32.00000    0  324   11.00000   32.00000   191%     -   29s
H    0     0                      12.0000000   32.00000   167%     -   45s
     0     0   32.00000    0  304   12.00000   32.00000   167%     -   45s
     0     0   32.00000    0  327   12.00000   32.00000   167%     -   46s
     0     0   32.00000    0  436   12.00000   32.00000   167%     -   50s

Cutting planes:
  Cover: 29
  Clique: 13
  MIR: 135
  GUB cover: 1
  Zero half: 21
  RLT: 49

Explored 1 nodes (51930 simplex iterations) in 50.07 seconds (32.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 10 ... 3

Time limit reached
Best objective 1.200000000000e+01, best bound 3.200000000000e+01, gap 166.6667%

Wrote result file './lp_solutions/grafo1890.33.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 11:40:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1890.33.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/grafo1890.33.lp
Reading time = 0.08 seconds
: 45445 rows, 1244 columns, 137135 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 45445 rows, 1244 columns and 137135 nonzeros
Model fingerprint: 0x337836c1
Variable types: 32 continuous, 1212 integer (1212 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 14121 rows and 15 columns
Presolve time: 0.30s
Presolved: 31324 rows, 1229 columns, 95002 nonzeros
Variable types: 0 continuous, 1229 integer (1197 binary)
Found heuristic solution: objective 3.0000000
Root relaxation presolved: 20908 rows, 11645 columns, 74170 nonzeros


Root relaxation: objective 3.200000e+01, 3471 iterations, 1.55 seconds (1.67 work units)

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

     0     0   32.00000    0  317    3.00000   32.00000   967%     -    3s
H    0     0                       7.0000000   32.00000   357%     -    3s
     0     0   32.00000    0  425    7.00000   32.00000   357%     -    5s
H    0     0                      10.0000000   32.00000   220%     -    5s
     0     0   32.00000    0  436   10.00000   32.00000   220%     -    5s
     0     0   32.00000    0  362   10.00000   32.00000   220%     -   14s
     0     0   32.00000    0  330   10.00000   32.00000   220%     -   15s
H    0     0                      11.0000000   32.00000   191%     -   19s
     0     0   32.00000    0  335   11.00000   32.00000   191%     -   19s
     0     0   32.00000    0  324   11.00000   32.00000   191%     -   20s
H    0     0                      12.0000000   32.00000   167%     -   31s
     0     0   32.00000    0  304   12.00000   32.00000   167%     -   31s
     0     0   32.00000    0  327   12.00000   32.00000   167%     -   31s
     0     0   32.00000    0  372   12.00000   32.00000   167%     -   35s
     0     0   32.00000    0  364   12.00000   32.00000   167%     -   36s
H    0     0                      13.0000000   32.00000   146%     -   41s
     0     0   32.00000    0  333   13.00000   32.00000   146%     -   41s
     0     0   32.00000    0  278   13.00000   32.00000   146%     -   42s
     0     2   32.00000    0  278   13.00000   32.00000   146%     -   46s
    19    23   32.00000    5  253   13.00000   32.00000   146%   733   50s

Cutting planes:
  Clique: 13
  MIR: 78
  StrongCG: 2
  Zero half: 5
  RLT: 39

Explored 22 nodes (78523 simplex iterations) in 50.03 seconds (52.19 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 13 12 11 ... 3

Time limit reached
Best objective 1.300000000000e+01, best bound 3.200000000000e+01, gap 146.1538%

Wrote result file './lp_solutions/grafo1890.33.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 04:43:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1890.33.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/grafo1890.33.lp
Reading time = 0.08 seconds
: 45445 rows, 1244 columns, 137135 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 45445 rows, 1244 columns and 137135 nonzeros
Model fingerprint: 0x337836c1
Variable types: 32 continuous, 1212 integer (1212 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 14121 rows and 15 columns
Presolve time: 0.32s
Presolved: 31324 rows, 1229 columns, 95002 nonzeros
Variable types: 0 continuous, 1229 integer (1197 binary)
Found heuristic solution: objective 3.0000000
Root relaxation presolved: 20908 rows, 11645 columns, 74170 nonzeros


Root relaxation: objective 3.200000e+01, 3471 iterations, 1.58 seconds (1.67 work units)

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

     0     0   32.00000    0  317    3.00000   32.00000   967%     -    3s
H    0     0                       7.0000000   32.00000   357%     -    3s
     0     0   32.00000    0  425    7.00000   32.00000   357%     -    5s
H    0     0                      10.0000000   32.00000   220%     -    6s
     0     0   32.00000    0  436   10.00000   32.00000   220%     -    6s
     0     0   32.00000    0  362   10.00000   32.00000   220%     -   14s
     0     0   32.00000    0  330   10.00000   32.00000   220%     -   14s
H    0     0                      11.0000000   32.00000   191%     -   19s
     0     0   32.00000    0  335   11.00000   32.00000   191%     -   19s
     0     0   32.00000    0  324   11.00000   32.00000   191%     -   19s
H    0     0                      12.0000000   32.00000   167%     -   31s
     0     0   32.00000    0  304   12.00000   32.00000   167%     -   31s
     0     0   32.00000    0  327   12.00000   32.00000   167%     -   31s
     0     0   32.00000    0  372   12.00000   32.00000   167%     -   35s
     0     0   32.00000    0  364   12.00000   32.00000   167%     -   35s
H    0     0                      13.0000000   32.00000   146%     -   41s
     0     0   32.00000    0  333   13.00000   32.00000   146%     -   41s
     0     0   32.00000    0  278   13.00000   32.00000   146%     -   41s
     0     2   32.00000    0  278   13.00000   32.00000   146%     -   46s
    19    24   32.00000    5  253   13.00000   32.00000   146%   733   50s

Cutting planes:
  Clique: 13
  MIR: 78
  StrongCG: 2
  Zero half: 5
  RLT: 39

Explored 23 nodes (79903 simplex iterations) in 50.04 seconds (52.26 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 13 12 11 ... 3

Time limit reached
Best objective 1.300000000000e+01, best bound 3.200000000000e+01, gap 146.1538%

Wrote result file './lp_solutions/grafo1890.33.sol'

