
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 04:46:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2199.44.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/grafo2199.44.lp
Reading time = 0.12 seconds
: 64818 rows, 2144 columns, 196041 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 64818 rows, 2144 columns and 196041 nonzeros
Model fingerprint: 0x7b1e9133
Variable types: 44 continuous, 2100 integer (2100 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 7144 rows and 1 columns
Presolve time: 0.54s
Presolved: 57674 rows, 2143 columns, 174878 nonzeros
Variable types: 0 continuous, 2143 integer (2099 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2116 rows, 59790 columns, 177021 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20610    3.8972096e+01   0.000000e+00   2.683228e+04      5s
   39539    3.9000000e+01   0.000000e+00   0.000000e+00     10s
   39539    3.9000000e+01   0.000000e+00   0.000000e+00     10s
   39539    3.9000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 3.900000e+01, 39539 iterations, 8.93 seconds (5.33 work units)
Total elapsed time = 17.32s (DegenMoves)

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

     0     0   39.00000    0  359    5.00000   39.00000   680%     -   18s
H    0     0                       8.0000000   39.00000   387%     -   18s
H    0     0                      11.0000000   39.00000   255%     -   18s
H    0     0                      12.0000000   39.00000   225%     -   18s
H    0     0                      13.0000000   39.00000   200%     -   19s
     0     0   39.00000    0  599   13.00000   39.00000   200%     -   27s
     0     0   39.00000    0  588   13.00000   39.00000   200%     -   28s
     0     0   39.00000    0  663   13.00000   39.00000   200%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 53
  Cover: 22
  Clique: 1
  MIR: 144
  StrongCG: 6
  Zero half: 38
  RLT: 59

Explored 1 nodes (67476 simplex iterations) in 50.07 seconds (31.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 11 ... 5

Time limit reached
Best objective 1.300000000000e+01, best bound 3.900000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo2199.44.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:10:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2199.44.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/grafo2199.44.lp
Reading time = 0.10 seconds
: 64818 rows, 2144 columns, 196041 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 64818 rows, 2144 columns and 196041 nonzeros
Model fingerprint: 0x7b1e9133
Variable types: 44 continuous, 2100 integer (2100 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 7144 rows and 1 columns
Presolve time: 0.36s
Presolved: 57674 rows, 2143 columns, 174878 nonzeros
Variable types: 0 continuous, 2143 integer (2099 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2116 rows, 59790 columns, 177021 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   30690    3.8968592e+01   0.000000e+00   1.349153e+03      5s
   39539    3.9000000e+01   0.000000e+00   0.000000e+00      7s
   39539    3.9000000e+01   0.000000e+00   0.000000e+00      7s
   39539    3.9000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 3.900000e+01, 39539 iterations, 6.19 seconds (5.33 work units)
Total elapsed time = 12.69s (DegenMoves)

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

     0     0   39.00000    0  359    5.00000   39.00000   680%     -   13s
H    0     0                       8.0000000   39.00000   387%     -   13s
H    0     0                      11.0000000   39.00000   255%     -   13s
H    0     0                      12.0000000   39.00000   225%     -   13s
H    0     0                      13.0000000   39.00000   200%     -   14s
     0     0   39.00000    0  599   13.00000   39.00000   200%     -   19s
     0     0   39.00000    0  588   13.00000   39.00000   200%     -   20s
H    0     0                      14.0000000   39.00000   179%     -   36s
H    0     0                      15.0000000   39.00000   160%     -   36s
     0     0   39.00000    0  496   15.00000   39.00000   160%     -   36s
H    0     0                      16.0000000   39.00000   144%     -   36s
     0     0   39.00000    0  505   16.00000   39.00000   144%     -   37s
     0     0   39.00000    0  610   16.00000   39.00000   144%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 15
  Clique: 2
  MIR: 165
  Zero half: 46
  RLT: 69

Explored 1 nodes (83429 simplex iterations) in 50.07 seconds (46.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 16 15 14 ... 5

Time limit reached
Best objective 1.600000000000e+01, best bound 3.900000000000e+01, gap 143.7500%

Wrote result file './lp_solutions/grafo2199.44.sol'

