
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:46:43 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11637.38.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/grafo11637.38.lp
Reading time = 0.06 seconds
: 48795 rows, 1623 columns, 147501 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 48795 rows, 1623 columns and 147501 nonzeros
Model fingerprint: 0x3c00edca
Variable types: 37 continuous, 1586 integer (1586 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 9394 rows and 22 columns
Presolve time: 0.26s
Presolved: 39401 rows, 1601 columns, 119710 nonzeros
Variable types: 0 continuous, 1601 integer (1564 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 23195 rows, 17807 columns, 87298 nonzeros


Root relaxation: objective 3.000000e+01, 1839 iterations, 0.43 seconds (0.55 work units)

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

     0     0   30.00000    0  328    4.00000   30.00000   650%     -    1s
H    0     0                      10.0000000   30.00000   200%     -    1s
H    0     0                      11.0000000   30.00000   173%     -    2s
     0     0   30.00000    0  523   11.00000   30.00000   173%     -    4s
     0     0   30.00000    0  478   11.00000   30.00000   173%     -    4s
     0     0   30.00000    0  286   11.00000   30.00000   173%     -    9s
     0     0   30.00000    0  286   11.00000   30.00000   173%     -   10s
     0     0   30.00000    0  433   11.00000   30.00000   173%     -   13s
     0     0   30.00000    0  416   11.00000   30.00000   173%     -   13s
H    0     0                      12.0000000   30.00000   150%     -   24s
     0     0   30.00000    0  442   12.00000   30.00000   150%     -   24s
     0     0   30.00000    0  433   12.00000   30.00000   150%     -   24s
     0     0   30.00000    0  379   12.00000   30.00000   150%     -   31s
     0     0   30.00000    0  408   12.00000   30.00000   150%     -   31s
     0     0   30.00000    0  447   12.00000   30.00000   150%     -   35s
     0     0   30.00000    0  449   12.00000   30.00000   150%     -   35s
H    0     0                      13.0000000   30.00000   131%     -   40s
     0     0   30.00000    0  245   13.00000   30.00000   131%     -   40s
     0     0   30.00000    0  301   13.00000   30.00000   131%     -   40s
     0     0   30.00000    0  431   13.00000   30.00000   131%     -   43s
     0     0   30.00000    0  367   13.00000   30.00000   131%     -   46s

Cutting planes:
  Clique: 2
  MIR: 21
  StrongCG: 2
  RLT: 15

Explored 1 nodes (86196 simplex iterations) in 50.03 seconds (58.87 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 11 ... 4

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

Wrote result file './lp_solutions/grafo11637.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:30:32 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11637.38.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/grafo11637.38.lp
Reading time = 0.08 seconds
: 48795 rows, 1623 columns, 147501 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 48795 rows, 1623 columns and 147501 nonzeros
Model fingerprint: 0x3c00edca
Variable types: 37 continuous, 1586 integer (1586 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 9394 rows and 22 columns
Presolve time: 0.36s
Presolved: 39401 rows, 1601 columns, 119710 nonzeros
Variable types: 0 continuous, 1601 integer (1564 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 23195 rows, 17807 columns, 87298 nonzeros


Root relaxation: objective 3.000000e+01, 1839 iterations, 0.59 seconds (0.55 work units)

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

     0     0   30.00000    0  328    4.00000   30.00000   650%     -    2s
H    0     0                      10.0000000   30.00000   200%     -    2s
H    0     0                      11.0000000   30.00000   173%     -    3s
     0     0   30.00000    0  523   11.00000   30.00000   173%     -    5s
     0     0   30.00000    0  478   11.00000   30.00000   173%     -    6s
     0     0   30.00000    0  286   11.00000   30.00000   173%     -   12s
     0     0   30.00000    0  286   11.00000   30.00000   173%     -   13s
     0     0   30.00000    0  433   11.00000   30.00000   173%     -   17s
     0     0   30.00000    0  416   11.00000   30.00000   173%     -   18s
H    0     0                      12.0000000   30.00000   150%     -   30s
     0     0   30.00000    0  442   12.00000   30.00000   150%     -   30s
     0     0   30.00000    0  433   12.00000   30.00000   150%     -   31s
     0     0   30.00000    0  379   12.00000   30.00000   150%     -   40s
     0     0   30.00000    0  408   12.00000   30.00000   150%     -   40s
     0     0   30.00000    0  447   12.00000   30.00000   150%     -   44s
     0     0   30.00000    0  449   12.00000   30.00000   150%     -   44s
     0     0   30.00000    0  396   12.00000   30.00000   150%     -   50s

Cutting planes:
  Cover: 15
  Clique: 6
  MIR: 65
  GUB cover: 3
  Zero half: 34
  RLT: 46

Explored 1 nodes (70816 simplex iterations) in 50.05 seconds (45.98 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 11 10 4 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.000000000000e+01, gap 150.0000%

Wrote result file './lp_solutions/grafo11637.38.sol'

