
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:48:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3193.40.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/grafo3193.40.lp
Reading time = 0.10 seconds
: 57903 rows, 2004 columns, 175342 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 57903 rows, 2004 columns and 175342 nonzeros
Model fingerprint: 0x6ae16529
Variable types: 44 continuous, 1960 integer (1960 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 7068 rows and 32 columns
Presolve time: 0.46s
Presolved: 50835 rows, 1972 columns, 154523 nonzeros
Variable types: 0 continuous, 1972 integer (1928 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 27711 rows, 25096 columns, 108275 nonzeros


Root relaxation: objective 3.700000e+01, 3309 iterations, 2.11 seconds (1.30 work units)
Total elapsed time = 5.08s (DegenMoves)

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

     0     0   37.00000    0  295   11.00000   37.00000   236%     -    5s
H    0     0                      13.0000000   37.00000   185%     -    5s
     0     0   37.00000    0  547   13.00000   37.00000   185%     -   10s
H    0     0                      14.0000000   37.00000   164%     -   11s
     0     0   36.83333    0  541   14.00000   36.83333   163%     -   11s
H    0     0                      15.0000000   36.00000   140%     -   21s
H    0     0                      17.0000000   36.00000   112%     -   21s
     0     0   36.00000    0  349   17.00000   36.00000   112%     -   21s
H    0     0                      18.0000000   36.00000   100%     -   22s
     0     0   36.00000    0  346   18.00000   36.00000   100%     -   22s
H    0     0                      19.0000000   36.00000  89.5%     -   33s
     0     0   36.00000    0  247   19.00000   36.00000  89.5%     -   33s
     0     0   36.00000    0  228   19.00000   36.00000  89.5%     -   34s
H    0     0                      20.0000000   36.00000  80.0%     -   43s
     0     0   36.00000    0  418   20.00000   36.00000  80.0%     -   43s
     0     0   36.00000    0  333   20.00000   36.00000  80.0%     -   43s
     0     0   36.00000    0  299   20.00000   36.00000  80.0%     -   49s

Cutting planes:
  Cover: 1
  Clique: 3
  MIR: 16
  Zero half: 2
  RLT: 15
  BQP: 1

Explored 1 nodes (46675 simplex iterations) in 50.11 seconds (28.79 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 20 19 18 ... 11

Time limit reached
Best objective 2.000000000000e+01, best bound 3.600000000000e+01, gap 80.0000%

Wrote result file './lp_solutions/grafo3193.40.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:05:08 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3193.40.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/grafo3193.40.lp
Reading time = 0.09 seconds
: 57903 rows, 2004 columns, 175342 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 57903 rows, 2004 columns and 175342 nonzeros
Model fingerprint: 0x6ae16529
Variable types: 44 continuous, 1960 integer (1960 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 7068 rows and 32 columns
Presolve time: 0.38s
Presolved: 50835 rows, 1972 columns, 154523 nonzeros
Variable types: 0 continuous, 1972 integer (1928 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 27711 rows, 25096 columns, 108275 nonzeros


Root relaxation: objective 3.700000e+01, 3309 iterations, 1.35 seconds (1.30 work units)

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

     0     0   37.00000    0  295   11.00000   37.00000   236%     -    3s
H    0     0                      13.0000000   37.00000   185%     -    3s
     0     0   37.00000    0  547   13.00000   37.00000   185%     -    7s
H    0     0                      14.0000000   37.00000   164%     -    7s
     0     0   36.83333    0  541   14.00000   36.83333   163%     -    7s
H    0     0                      15.0000000   36.00000   140%     -   14s
H    0     0                      17.0000000   36.00000   112%     -   14s
     0     0   36.00000    0  349   17.00000   36.00000   112%     -   14s
H    0     0                      18.0000000   36.00000   100%     -   14s
     0     0   36.00000    0  346   18.00000   36.00000   100%     -   14s
H    0     0                      19.0000000   36.00000  89.5%     -   22s
     0     0   36.00000    0  247   19.00000   36.00000  89.5%     -   22s
     0     0   36.00000    0  228   19.00000   36.00000  89.5%     -   22s
H    0     0                      20.0000000   36.00000  80.0%     -   28s
     0     0   36.00000    0  418   20.00000   36.00000  80.0%     -   28s
     0     0   36.00000    0  333   20.00000   36.00000  80.0%     -   29s
     0     0   36.00000    0  299   20.00000   36.00000  80.0%     -   32s
     0     0   36.00000    0  398   20.00000   36.00000  80.0%     -   33s
     0     0   36.00000    0  366   20.00000   36.00000  80.0%     -   38s
     0     0   36.00000    0  363   20.00000   36.00000  80.0%     -   38s
     0     0   36.00000    0  349   20.00000   36.00000  80.0%     -   43s
     0     0   36.00000    0  325   20.00000   36.00000  80.0%     -   44s
H    0     0                      21.0000000   36.00000  71.4%     -   46s

Cutting planes:
  Cover: 1
  Clique: 2
  MIR: 17
  Inf proof: 1
  Zero half: 3
  RLT: 21

Explored 1 nodes (66133 simplex iterations) in 50.03 seconds (43.79 work units)
Thread count was 8 (of 8 available processors)

Solution count 9: 21 20 19 ... 11

Time limit reached
Best objective 2.100000000000e+01, best bound 3.600000000000e+01, gap 71.4286%

Wrote result file './lp_solutions/grafo3193.40.sol'

