
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:07:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2631.34.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/grafo2631.34.lp
Reading time = 0.08 seconds
: 39253 rows, 1458 columns, 118841 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 39253 rows, 1458 columns and 118841 nonzeros
Model fingerprint: 0x3eea9669
Variable types: 37 continuous, 1421 integer (1421 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 7026 rows and 27 columns
Presolve time: 0.48s
Presolved: 32227 rows, 1431 columns, 98110 nonzeros
Variable types: 0 continuous, 1431 integer (1394 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 18473 rows, 15185 columns, 70602 nonzeros


Root relaxation: objective 3.200000e+01, 2029 iterations, 0.76 seconds (0.49 work units)

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

     0     0   32.00000    0  326    6.00000   32.00000   433%     -    3s
H    0     0                       9.0000000   32.00000   256%     -    3s
     0     0   32.00000    0  450    9.00000   32.00000   256%     -    6s
H    0     0                      10.0000000   32.00000   220%     -    6s
     0     0   32.00000    0  416   10.00000   32.00000   220%     -    6s
     0     0   32.00000    0  303   10.00000   32.00000   220%     -   14s
     0     0   32.00000    0  293   10.00000   32.00000   220%     -   14s
     0     0   32.00000    0  410   10.00000   32.00000   220%     -   22s
     0     0   32.00000    0  356   10.00000   32.00000   220%     -   22s
H    0     0                      11.0000000   32.00000   191%     -   27s
     0     0   32.00000    0  415   11.00000   32.00000   191%     -   27s
     0     0   32.00000    0  361   11.00000   32.00000   191%     -   28s
H    0     0                      12.0000000   32.00000   167%     -   37s
     0     0   32.00000    0  421   12.00000   32.00000   167%     -   37s
     0     0   32.00000    0  433   12.00000   32.00000   167%     -   38s
     0     0   32.00000    0  391   12.00000   32.00000   167%     -   49s
     0     0   32.00000    0  391   12.00000   32.00000   167%     -   50s

Cutting planes:
  Cover: 2
  Clique: 5
  MIR: 28
  Zero half: 1
  RLT: 19

Explored 1 nodes (58013 simplex iterations) in 50.04 seconds (31.92 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 12 11 10 ... 2

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

Wrote result file './lp_solutions/grafo2631.34.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 05:20:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2631.34.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/grafo2631.34.lp
Reading time = 0.07 seconds
: 39253 rows, 1458 columns, 118841 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 39253 rows, 1458 columns and 118841 nonzeros
Model fingerprint: 0x3eea9669
Variable types: 37 continuous, 1421 integer (1421 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 7026 rows and 27 columns
Presolve time: 0.26s
Presolved: 32227 rows, 1431 columns, 98110 nonzeros
Variable types: 0 continuous, 1431 integer (1394 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 18473 rows, 15185 columns, 70602 nonzeros


Root relaxation: objective 3.200000e+01, 2029 iterations, 0.52 seconds (0.49 work units)

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

     0     0   32.00000    0  326    6.00000   32.00000   433%     -    2s
H    0     0                       9.0000000   32.00000   256%     -    2s
     0     0   32.00000    0  450    9.00000   32.00000   256%     -    4s
H    0     0                      10.0000000   32.00000   220%     -    4s
     0     0   32.00000    0  416   10.00000   32.00000   220%     -    4s
     0     0   32.00000    0  303   10.00000   32.00000   220%     -    9s
     0     0   32.00000    0  293   10.00000   32.00000   220%     -    9s
     0     0   32.00000    0  410   10.00000   32.00000   220%     -   14s
     0     0   32.00000    0  356   10.00000   32.00000   220%     -   15s
H    0     0                      11.0000000   32.00000   191%     -   18s
     0     0   32.00000    0  415   11.00000   32.00000   191%     -   18s
     0     0   32.00000    0  361   11.00000   32.00000   191%     -   19s
H    0     0                      12.0000000   32.00000   167%     -   25s
     0     0   32.00000    0  421   12.00000   32.00000   167%     -   25s
     0     0   32.00000    0  433   12.00000   32.00000   167%     -   26s
     0     0   32.00000    0  391   12.00000   32.00000   167%     -   33s
     0     0   32.00000    0  328   12.00000   32.00000   167%     -   35s
     0     2   32.00000    0  296   12.00000   32.00000   167%     -   39s
     1     4   32.00000    1  269   12.00000   32.00000   167%  1502   40s
    65    78   31.50000   11  243   12.00000   32.00000   167%   354   48s
H   93   109                      13.0000000   32.00000   146%   398   49s
   108   122   30.50000   14  269   13.00000   32.00000   146%   377   50s

Cutting planes:
  Cover: 5
  Clique: 9
  MIR: 92
  StrongCG: 1
  Zero half: 2
  RLT: 50

Explored 121 nodes (104891 simplex iterations) in 50.05 seconds (58.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 13 12 11 ... 2

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

Wrote result file './lp_solutions/grafo2631.34.sol'

