
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:35:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3016.41.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/grafo3016.41.lp
Reading time = 0.13 seconds
: 57242 rows, 1870 columns, 173042 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 57242 rows, 1870 columns and 173042 nonzeros
Model fingerprint: 0x9e945a4a
Variable types: 40 continuous, 1830 integer (1830 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 9622 rows and 22 columns
Presolve time: 0.54s
Presolved: 47620 rows, 1848 columns, 144496 nonzeros
Variable types: 0 continuous, 1848 integer (1808 binary)
Root relaxation presolved: 27080 rows, 22388 columns, 103416 nonzeros


Root relaxation: objective 4.100000e+01, 3799 iterations, 2.88 seconds (1.78 work units)
Total elapsed time = 7.38s (DegenMoves)

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

     0     0   41.00000    0  353          -   41.00000      -     -    8s
H    0     0                       9.0000000   41.00000   356%     -    8s
H    0     0                      10.0000000   41.00000   310%     -    9s
     0     0   41.00000    0  528   10.00000   41.00000   310%     -   12s
H    0     0                      11.0000000   41.00000   273%     -   13s
     0     0   41.00000    0  490   11.00000   41.00000   273%     -   13s
     0     0   41.00000    0  287   11.00000   41.00000   273%     -   25s
     0     0   41.00000    0  286   11.00000   41.00000   273%     -   25s
H    0     0                      13.0000000   41.00000   215%     -   26s
H    0     0                      14.0000000   41.00000   193%     -   32s
     0     0   41.00000    0  324   14.00000   41.00000   193%     -   32s
     0     0   41.00000    0  313   14.00000   41.00000   193%     -   33s
     0     0   41.00000    0  523   14.00000   41.00000   193%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 32
  Clique: 7
  MIR: 169
  StrongCG: 4
  GUB cover: 4
  Zero half: 38
  RLT: 55
  BQP: 1

Explored 1 nodes (48021 simplex iterations) in 50.07 seconds (33.35 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 14 13 11 ... 9

Time limit reached
Best objective 1.400000000000e+01, best bound 4.100000000000e+01, gap 192.8571%

Wrote result file './lp_solutions/grafo3016.41.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:49:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3016.41.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/grafo3016.41.lp
Reading time = 0.09 seconds
: 57242 rows, 1870 columns, 173042 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 57242 rows, 1870 columns and 173042 nonzeros
Model fingerprint: 0x9e945a4a
Variable types: 40 continuous, 1830 integer (1830 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 9622 rows and 22 columns
Presolve time: 0.38s
Presolved: 47620 rows, 1848 columns, 144496 nonzeros
Variable types: 0 continuous, 1848 integer (1808 binary)
Root relaxation presolved: 27080 rows, 22388 columns, 103416 nonzeros


Root relaxation: objective 4.100000e+01, 3799 iterations, 1.82 seconds (1.78 work units)
Total elapsed time = 5.02s (DegenMoves)

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

     0     0   41.00000    0  353          -   41.00000      -     -    5s
H    0     0                       9.0000000   41.00000   356%     -    5s
H    0     0                      10.0000000   41.00000   310%     -    6s
     0     0   41.00000    0  528   10.00000   41.00000   310%     -    8s
H    0     0                      11.0000000   41.00000   273%     -    8s
     0     0   41.00000    0  490   11.00000   41.00000   273%     -    8s
     0     0   41.00000    0  287   11.00000   41.00000   273%     -   16s
     0     0   41.00000    0  286   11.00000   41.00000   273%     -   16s
H    0     0                      13.0000000   41.00000   215%     -   16s
H    0     0                      14.0000000   41.00000   193%     -   20s
     0     0   41.00000    0  324   14.00000   41.00000   193%     -   20s
     0     0   41.00000    0  313   14.00000   41.00000   193%     -   21s
H    0     0                      15.0000000   41.00000   173%     -   40s
H    0     0                      16.0000000   41.00000   156%     -   40s
H    0     0                      17.0000000   41.00000   141%     -   40s
     0     0   40.66667    0  335   17.00000   40.66667   139%     -   40s
     0     0   40.66667    0  416   17.00000   40.66667   139%     -   41s
     0     0   40.66667    0  506   17.00000   40.66667   139%     -   50s

Cutting planes:
  Cover: 29
  Clique: 4
  MIR: 149
  StrongCG: 3
  GUB cover: 4
  Zero half: 59
  RLT: 67

Explored 1 nodes (68491 simplex iterations) in 50.08 seconds (46.67 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 17 16 15 ... 9

Time limit reached
Best objective 1.700000000000e+01, best bound 4.000000000000e+01, gap 135.2941%

Wrote result file './lp_solutions/grafo3016.41.sol'

