
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:49:13 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2182.38.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/grafo2182.38.lp
Reading time = 0.17 seconds
: 140254 rows, 2280 columns, 422898 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 140254 rows, 2280 columns and 422898 nonzeros
Model fingerprint: 0xd6ec9c8d
Variable types: 49 continuous, 2231 integer (2231 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 61971 rows and 45 columns
Presolve time: 0.73s
Presolved: 78283 rows, 2235 columns, 237290 nonzeros
Variable types: 0 continuous, 2235 integer (2186 binary)
Root relaxation presolved: 2232 rows, 80515 columns, 239525 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   30057    4.9919757e+01   0.000000e+00   1.229021e+04      5s
   58078    5.0000000e+01   0.000000e+00   0.000000e+00      9s
   58078    5.0000000e+01   0.000000e+00   0.000000e+00     10s
   58078    5.0000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 5.000000e+01, 58078 iterations, 8.65 seconds (8.69 work units)
Total elapsed time = 17.78s (DegenMoves)

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

     0     0   50.00000    0  538          -   50.00000      -     -   19s
H    0     0                       5.0000000   50.00000   900%     -   20s
     0     0   50.00000    0 1018    5.00000   50.00000   900%     -   34s
H    0     0                      12.0000000   50.00000   317%     -   34s
     0     0   50.00000    0  974   12.00000   50.00000   317%     -   34s
     0     0   50.00000    0  997   12.00000   50.00000   317%     -   50s

Cutting planes:
  Gomory: 4
  Cover: 14
  Clique: 17
  MIR: 129
  GUB cover: 3
  Zero half: 59
  RLT: 82
  BQP: 8

Explored 1 nodes (91642 simplex iterations) in 50.02 seconds (59.51 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 5 

Time limit reached
Best objective 1.200000000000e+01, best bound 5.000000000000e+01, gap 316.6667%

Wrote result file './lp_solutions/grafo2182.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:33:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2182.38.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/grafo2182.38.lp
Reading time = 0.23 seconds
: 140254 rows, 2280 columns, 422898 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 140254 rows, 2280 columns and 422898 nonzeros
Model fingerprint: 0xd6ec9c8d
Variable types: 49 continuous, 2231 integer (2231 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 61971 rows and 45 columns
Presolve time: 0.91s
Presolved: 78283 rows, 2235 columns, 237290 nonzeros
Variable types: 0 continuous, 2235 integer (2186 binary)
Root relaxation presolved: 2232 rows, 80515 columns, 239525 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23721    4.9924373e+01   0.000000e+00   3.881334e+03      5s
   48274    4.9915217e+01   0.000000e+00   5.965772e+02     10s
   58078    5.0000000e+01   0.000000e+00   0.000000e+00     12s
   58078    5.0000000e+01   0.000000e+00   0.000000e+00     12s
   58078    5.0000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 5.000000e+01, 58078 iterations, 11.03 seconds (8.69 work units)
Total elapsed time = 22.12s (DegenMoves)

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

     0     0   50.00000    0  538          -   50.00000      -     -   23s
H    0     0                       5.0000000   50.00000   900%     -   25s
     0     0   50.00000    0 1018    5.00000   50.00000   900%     -   42s
H    0     0                      12.0000000   50.00000   317%     -   42s
     0     0   50.00000    0  974   12.00000   50.00000   317%     -   42s
     0     0          -    0        12.00000   50.00000   317%     -   50s

Cutting planes:
  Gomory: 4
  Cover: 14
  Clique: 17
  MIR: 129
  GUB cover: 3
  Zero half: 59
  RLT: 82
  BQP: 8

Explored 1 nodes (83714 simplex iterations) in 50.02 seconds (48.54 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 5 

Time limit reached
Best objective 1.200000000000e+01, best bound 5.000000000000e+01, gap 316.6667%

Wrote result file './lp_solutions/grafo2182.38.sol'

