
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 21:48:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10191.34.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/grafo10191.34.lp
Reading time = 1.04 seconds
: 36712 rows, 1167 columns, 110794 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 36712 rows, 1167 columns and 110794 nonzeros
Model fingerprint: 0x7f318524
Variable types: 29 continuous, 1138 integer (1138 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 9742 rows and 16 columns
Presolve time: 3.17s
Presolved: 26970 rows, 1151 columns, 81748 nonzeros
Variable types: 0 continuous, 1151 integer (1122 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 17332 rows, 10789 columns, 62472 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
     266    2.4999972e+01   7.744352e+02   0.000000e+00      5s
    1123    2.5000000e+01   0.000000e+00   0.000000e+00      6s
    1123    2.5000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 2.500000e+01, 1123 iterations, 1.97 seconds (0.27 work units)

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

     0     0   25.00000    0  197    8.00000   25.00000   212%     -    7s
H    0     0                       9.0000000   25.00000   178%     -    8s
     0     0   25.00000    0  363    9.00000   25.00000   178%     -   11s
H    0     0                      10.0000000   25.00000   150%     -   11s
     0     0   25.00000    0  343   10.00000   25.00000   150%     -   11s
     0     0   25.00000    0  183   10.00000   25.00000   150%     -   17s
     0     0   25.00000    0  167   10.00000   25.00000   150%     -   18s
     0     0   25.00000    0  197   10.00000   25.00000   150%     -   21s
     0     0   25.00000    0  299   10.00000   25.00000   150%     -   22s
H    0     0                      11.0000000   25.00000   127%     -   43s
     0     0   25.00000    0  274   11.00000   25.00000   127%     -   43s
     0     0   25.00000    0  292   11.00000   25.00000   127%     -   43s
     0     0   25.00000    0  185   11.00000   25.00000   127%     -   47s
     0     0   25.00000    0  157   11.00000   25.00000   127%     -   47s
     0     0   25.00000    0  320   11.00000   25.00000   127%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 1
  Cover: 22
  Clique: 11
  MIR: 82
  StrongCG: 1
  GUB cover: 2
  Inf proof: 1
  Zero half: 18
  RLT: 38
  BQP: 1

Explored 1 nodes (22525 simplex iterations) in 50.06 seconds (9.48 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 11 10 9 ... 4

Time limit reached
Best objective 1.100000000000e+01, best bound 2.500000000000e+01, gap 127.2727%

Wrote result file './lp_solutions/grafo10191.34.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 18:56:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10191.34.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/grafo10191.34.lp
Reading time = 0.06 seconds
: 36712 rows, 1167 columns, 110794 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 36712 rows, 1167 columns and 110794 nonzeros
Model fingerprint: 0x7f318524
Variable types: 29 continuous, 1138 integer (1138 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 9742 rows and 16 columns
Presolve time: 0.24s
Presolved: 26970 rows, 1151 columns, 81748 nonzeros
Variable types: 0 continuous, 1151 integer (1122 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 17332 rows, 10789 columns, 62472 nonzeros


Root relaxation: objective 2.500000e+01, 1123 iterations, 0.28 seconds (0.27 work units)

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

     0     0   25.00000    0  197    8.00000   25.00000   212%     -    1s
H    0     0                       9.0000000   25.00000   178%     -    1s
     0     0   25.00000    0  363    9.00000   25.00000   178%     -    2s
H    0     0                      10.0000000   25.00000   150%     -    2s
     0     0   25.00000    0  343   10.00000   25.00000   150%     -    2s
     0     0   25.00000    0  183   10.00000   25.00000   150%     -    5s
     0     0   25.00000    0  167   10.00000   25.00000   150%     -    5s
     0     0   25.00000    0  197   10.00000   25.00000   150%     -    6s
     0     0   25.00000    0  299   10.00000   25.00000   150%     -    6s
H    0     0                      11.0000000   25.00000   127%     -    8s
     0     0   25.00000    0  274   11.00000   25.00000   127%     -    8s
     0     0   25.00000    0  292   11.00000   25.00000   127%     -    8s
     0     0   25.00000    0  185   11.00000   25.00000   127%     -   10s
     0     0   25.00000    0  157   11.00000   25.00000   127%     -   10s
     0     0   25.00000    0  273   11.00000   25.00000   127%     -   13s
     0     0   25.00000    0  219   11.00000   25.00000   127%     -   14s
     0     2   25.00000    0  219   11.00000   25.00000   127%     -   15s
   195   220   20.00000   37  117   11.00000   25.00000   127%   133   20s
H  201   220                      12.0000000   25.00000   108%   133   20s
   336   355   18.33333   56   91   12.00000   25.00000   108%   130   25s
   501   467   17.00000   73  237   12.00000   25.00000   108%   157   31s
   645   604   17.00000   83  227   12.00000   25.00000   108%   176   35s
   755   630 infeasible   93        12.00000   25.00000   108%   210   40s
  1109   962   21.75000   36  219   12.00000   25.00000   108%   191   46s

Explored 1110 nodes (245009 simplex iterations) in 50.04 seconds (59.23 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 12 11 10 ... 4

Time limit reached
Best objective 1.200000000000e+01, best bound 2.500000000000e+01, gap 108.3333%

Wrote result file './lp_solutions/grafo10191.34.sol'

