
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 22:00:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3247.38.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/grafo3247.38.lp
Reading time = 0.10 seconds
: 58073 rows, 1635 columns, 175371 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 58073 rows, 1635 columns and 175371 nonzeros
Model fingerprint: 0xdc31b99c
Variable types: 37 continuous, 1598 integer (1598 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 4.0000000
Presolve removed 16383 rows and 23 columns
Presolve time: 0.44s
Presolved: 41690 rows, 1612 columns, 126567 nonzeros
Variable types: 0 continuous, 1612 integer (1575 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 25484 rows, 17818 columns, 94155 nonzeros


Root relaxation: objective 3.400000e+01, 1765 iterations, 0.66 seconds (0.59 work units)

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

     0     0   34.00000    0  319   11.00000   34.00000   209%     -    2s
H    0     0                      12.0000000   34.00000   183%     -    2s
     0     0   34.00000    0  445   12.00000   34.00000   183%     -    5s
     0     0   34.00000    0  413   12.00000   34.00000   183%     -    5s
H    0     0                      13.0000000   34.00000   162%     -   11s
H    0     0                      14.0000000   34.00000   143%     -   11s
     0     0   34.00000    0  315   14.00000   34.00000   143%     -   11s
     0     0   34.00000    0  364   14.00000   34.00000   143%     -   11s
     0     0   34.00000    0  350   14.00000   34.00000   143%     -   23s
     0     0   34.00000    0  295   14.00000   34.00000   143%     -   23s
H    0     0                      15.0000000   34.00000   127%     -   32s
H    0     0                      17.0000000   34.00000   100%     -   32s
     0     0   34.00000    0  324   17.00000   34.00000   100%     -   32s
     0     0   34.00000    0  323   17.00000   34.00000   100%     -   33s
     0     0   34.00000    0  393   17.00000   34.00000   100%     -   40s
     0     0   34.00000    0  405   17.00000   34.00000   100%     -   41s
     0     0   34.00000    0  359   17.00000   34.00000   100%     -   50s

Cutting planes:
  Cover: 1
  Clique: 7
  MIR: 15
  Zero half: 1
  RLT: 20

Explored 1 nodes (54512 simplex iterations) in 50.07 seconds (37.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 17 15 14 ... 4

Time limit reached
Best objective 1.700000000000e+01, best bound 3.400000000000e+01, gap 100.0000%

Wrote result file './lp_solutions/grafo3247.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:44:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3247.38.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/grafo3247.38.lp
Reading time = 0.09 seconds
: 58073 rows, 1635 columns, 175371 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 58073 rows, 1635 columns and 175371 nonzeros
Model fingerprint: 0xdc31b99c
Variable types: 37 continuous, 1598 integer (1598 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 4.0000000
Presolve removed 16383 rows and 23 columns
Presolve time: 0.38s
Presolved: 41690 rows, 1612 columns, 126567 nonzeros
Variable types: 0 continuous, 1612 integer (1575 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 25484 rows, 17818 columns, 94155 nonzeros


Root relaxation: objective 3.400000e+01, 1765 iterations, 0.60 seconds (0.59 work units)

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

     0     0   34.00000    0  319   11.00000   34.00000   209%     -    2s
H    0     0                      12.0000000   34.00000   183%     -    2s
     0     0   34.00000    0  445   12.00000   34.00000   183%     -    4s
     0     0   34.00000    0  413   12.00000   34.00000   183%     -    5s
H    0     0                      13.0000000   34.00000   162%     -   10s
H    0     0                      14.0000000   34.00000   143%     -   10s
     0     0   34.00000    0  315   14.00000   34.00000   143%     -   10s
     0     0   34.00000    0  364   14.00000   34.00000   143%     -   10s
     0     0   34.00000    0  350   14.00000   34.00000   143%     -   20s
     0     0   34.00000    0  295   14.00000   34.00000   143%     -   21s
H    0     0                      15.0000000   34.00000   127%     -   27s
H    0     0                      17.0000000   34.00000   100%     -   27s
     0     0   34.00000    0  324   17.00000   34.00000   100%     -   27s
     0     0   34.00000    0  323   17.00000   34.00000   100%     -   28s
     0     0   34.00000    0  393   17.00000   34.00000   100%     -   34s
     0     0   34.00000    0  405   17.00000   34.00000   100%     -   35s
     0     0   34.00000    0  359   17.00000   34.00000   100%     -   43s
     0     0   34.00000    0  357   17.00000   34.00000   100%     -   44s
     0     2   34.00000    0  357   17.00000   34.00000   100%     -   49s
     1     3   34.00000    1  337   17.00000   34.00000   100%  1863   50s

Cutting planes:
  Cover: 1
  Clique: 7
  MIR: 15
  Zero half: 1
  RLT: 20

Explored 2 nodes (58610 simplex iterations) in 50.03 seconds (46.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 17 15 14 ... 4

Time limit reached
Best objective 1.700000000000e+01, best bound 3.400000000000e+01, gap 100.0000%

Wrote result file './lp_solutions/grafo3247.38.sol'

