
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:39:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3860.42.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/grafo3860.42.lp
Reading time = 0.13 seconds
: 63722 rows, 1685 columns, 192143 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 63722 rows, 1685 columns and 192143 nonzeros
Model fingerprint: 0xd0a49e78
Variable types: 35 continuous, 1650 integer (1650 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 15856 rows and 21 columns
Presolve time: 0.76s
Presolved: 47866 rows, 1664 columns, 144802 nonzeros
Variable types: 0 continuous, 1664 integer (1629 binary)
Root relaxation presolved: 1664 rows, 49530 columns, 146466 nonzeros


Root relaxation: objective 3.300000e+01, 2230 iterations, 0.87 seconds (0.62 work units)
Total elapsed time = 7.26s (DegenMoves)

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

     0     0   33.00000    0  517          -   33.00000      -     -    8s
H    0     0                       5.0000000   33.00000   560%     -    8s
H    0     0                       7.0000000   33.00000   371%     -   11s
H    0     0                       8.0000000   33.00000   312%     -   22s
H    0     0                       9.0000000   33.00000   267%     -   22s
     0     0   33.00000    0  878    9.00000   33.00000   267%     -   22s
     0     0   33.00000    0  724    9.00000   33.00000   267%     -   24s
     0     0   33.00000    0  545    9.00000   33.00000   267%     -   50s

Cutting planes:
  Gomory: 5
  Cover: 1
  Clique: 17
  MIR: 56
  StrongCG: 1
  Zero half: 37
  RLT: 48
  BQP: 3

Explored 1 nodes (37663 simplex iterations) in 50.06 seconds (35.66 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 7 5 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.300000000000e+01, gap 266.6667%

Wrote result file './lp_solutions/grafo3860.42.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:21:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3860.42.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/grafo3860.42.lp
Reading time = 0.10 seconds
: 63722 rows, 1685 columns, 192143 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 63722 rows, 1685 columns and 192143 nonzeros
Model fingerprint: 0xd0a49e78
Variable types: 35 continuous, 1650 integer (1650 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 15856 rows and 21 columns
Presolve time: 0.44s
Presolved: 47866 rows, 1664 columns, 144802 nonzeros
Variable types: 0 continuous, 1664 integer (1629 binary)
Root relaxation presolved: 1664 rows, 49530 columns, 146466 nonzeros


Root relaxation: objective 3.300000e+01, 2230 iterations, 0.52 seconds (0.62 work units)
Total elapsed time = 5.17s (DegenMoves)

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

     0     0   33.00000    0  517          -   33.00000      -     -    5s
H    0     0                       5.0000000   33.00000   560%     -    5s
H    0     0                       7.0000000   33.00000   371%     -    7s
H    0     0                       8.0000000   33.00000   312%     -   15s
H    0     0                       9.0000000   33.00000   267%     -   15s
     0     0   33.00000    0  878    9.00000   33.00000   267%     -   15s
     0     0   33.00000    0  724    9.00000   33.00000   267%     -   16s
H    0     0                      10.0000000   33.00000   230%     -   38s
     0     0   33.00000    0  545   10.00000   33.00000   230%     -   38s
H    0     0                      11.0000000   33.00000   200%     -   38s
     0     0   33.00000    0  559   11.00000   33.00000   200%     -   40s
     0     0   33.00000    0  597   11.00000   33.00000   200%     -   50s

Cutting planes:
  Cover: 17
  Clique: 16
  MIR: 100
  StrongCG: 1
  Zero half: 37
  RLT: 51
  BQP: 1

Explored 1 nodes (52864 simplex iterations) in 50.03 seconds (49.17 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 11 10 9 ... 5

Time limit reached
Best objective 1.100000000000e+01, best bound 3.300000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo3860.42.sol'

