
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:08:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3497.37.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/grafo3497.37.lp
Reading time = 0.12 seconds
: 41569 rows, 1399 columns, 125537 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 41569 rows, 1399 columns and 125537 nonzeros
Model fingerprint: 0xc031c905
Variable types: 33 continuous, 1366 integer (1366 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]
Found heuristic solution: objective -0.0000000
Presolve removed 9004 rows and 21 columns
Presolve time: 0.41s
Presolved: 32565 rows, 1378 columns, 98772 nonzeros
Variable types: 0 continuous, 1378 integer (1345 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 19339 rows, 14604 columns, 72320 nonzeros


Root relaxation: objective 3.200000e+01, 3062 iterations, 1.62 seconds (1.03 work units)
Total elapsed time = 5.97s (DegenMoves)

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

     0     0   32.00000    0  420    4.00000   32.00000   700%     -    6s
H    0     0                       5.0000000   32.00000   540%     -    6s
H    0     0                       6.0000000   32.00000   433%     -    6s
     0     0   32.00000    0  504    6.00000   32.00000   433%     -   10s
     0     0   32.00000    0  452    6.00000   32.00000   433%     -   11s
     0     0   32.00000    0  302    6.00000   32.00000   433%     -   23s
     0     0   32.00000    0  314    6.00000   32.00000   433%     -   24s
H    0     0                       7.0000000   32.00000   357%     -   35s
     0     0   32.00000    0  405    7.00000   32.00000   357%     -   35s
     0     0   32.00000    0  341    7.00000   32.00000   357%     -   36s
H    0     0                      10.0000000   32.00000   220%     -   41s
     0     0   32.00000    0  328   10.00000   32.00000   220%     -   42s
     0     0   32.00000    0  245   10.00000   32.00000   220%     -   42s
H    0     0                      12.0000000   32.00000   167%     -   46s
     0     0   32.00000    0  330   12.00000   32.00000   167%     -   46s
     0     0   32.00000    0  325   12.00000   32.00000   167%     -   47s
     0     0   32.00000    0  358   12.00000   32.00000   167%     -   50s

Cutting planes:
  Cover: 14
  Clique: 4
  MIR: 109
  Zero half: 17
  RLT: 45

Explored 1 nodes (56048 simplex iterations) in 50.05 seconds (31.70 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 12 10 7 ... -0

Time limit reached
Best objective 1.200000000000e+01, best bound 3.200000000000e+01, gap 166.6667%

Wrote result file './lp_solutions/grafo3497.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:26:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3497.37.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/grafo3497.37.lp
Reading time = 0.07 seconds
: 41569 rows, 1399 columns, 125537 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 41569 rows, 1399 columns and 125537 nonzeros
Model fingerprint: 0xc031c905
Variable types: 33 continuous, 1366 integer (1366 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]
Found heuristic solution: objective -0.0000000
Presolve removed 9004 rows and 21 columns
Presolve time: 0.29s
Presolved: 32565 rows, 1378 columns, 98772 nonzeros
Variable types: 0 continuous, 1378 integer (1345 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 19339 rows, 14604 columns, 72320 nonzeros


Root relaxation: objective 3.200000e+01, 3062 iterations, 1.08 seconds (1.03 work units)

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

     0     0   32.00000    0  420    4.00000   32.00000   700%     -    4s
H    0     0                       5.0000000   32.00000   540%     -    4s
H    0     0                       6.0000000   32.00000   433%     -    4s
     0     0   32.00000    0  504    6.00000   32.00000   433%     -    7s
     0     0   32.00000    0  452    6.00000   32.00000   433%     -    7s
     0     0   32.00000    0  302    6.00000   32.00000   433%     -   16s
     0     0   32.00000    0  314    6.00000   32.00000   433%     -   16s
H    0     0                       7.0000000   32.00000   357%     -   24s
     0     0   32.00000    0  405    7.00000   32.00000   357%     -   24s
     0     0   32.00000    0  341    7.00000   32.00000   357%     -   24s
H    0     0                      10.0000000   32.00000   220%     -   28s
     0     0   32.00000    0  328   10.00000   32.00000   220%     -   28s
     0     0   32.00000    0  245   10.00000   32.00000   220%     -   29s
H    0     0                      12.0000000   32.00000   167%     -   31s
     0     0   32.00000    0  330   12.00000   32.00000   167%     -   31s
     0     0   32.00000    0  325   12.00000   32.00000   167%     -   31s
     0     0   32.00000    0  241   12.00000   32.00000   167%     -   35s
     0     0   32.00000    0  317   12.00000   32.00000   167%     -   36s
     0     0   32.00000    0  308   12.00000   32.00000   167%     -   41s
     0     0   32.00000    0  366   12.00000   32.00000   167%     -   41s
     0     0   32.00000    0  313   12.00000   32.00000   167%     -   45s
     0     0   32.00000    0  273   12.00000   32.00000   167%     -   45s
H    0     0                      14.0000000   32.00000   129%     -   49s

Cutting planes:
  Lift-and-project: 1
  Cover: 2
  MIR: 13
  RLT: 10

Explored 1 nodes (80758 simplex iterations) in 50.01 seconds (48.02 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 14 12 10 ... -0

Time limit reached
Best objective 1.400000000000e+01, best bound 3.200000000000e+01, gap 128.5714%

Wrote result file './lp_solutions/grafo3497.37.sol'

