PB'05 competition: run trace

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided in four parts:

LAUNCHER DATA
These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provide some useful information on the computer.
SOLVER DATA
This is the output of the solver (stdout and stderr).
WATCHER DATA
This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to 1200 seconds. After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
VERIFIER DATA
The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.

General information on the benchmark

Name	normalized-opb/mps-v2-20-10/MIPLIB/miplib3/normalized-mps-v2-20-10-stein45.opb
MD5SUM	5c72b08d2dc855d07dab2f619386e796
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	30
Optimality of the best value was proved	NO
Number of terms in the objective function	45
Biggest coefficient in the objective function	1
Number of bits for the biggest coefficient in the objective function	1
Sum of the numbers in the objective function	45
Number of bits of the sum of numbers in the objective function	6
Biggest number in a constraint	22
Number of bits of the biggest number in a constraint	5
Biggest sum of numbers in a constraint	67
Number of bits of the biggest sum of numbers	7
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.01384
Number of variables	45
Total number of constraints	376
Number of constraints which are clauses	330
Number of constraints which are cardinality constraints (but not clauses)	46
Number of constraints which are nor clauses,nor cardinality constraints	0
Minimum length of a constraint	1
Maximum length of a constraint	45

Trace number 13725

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc27 THE 2005-04-20 21:46:49 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=13921 boxname=wulflinc27 idbench=1071 idsolver=11 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5c72b08d2dc855d07dab2f619386e796  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-stein45.opb
REAL COMMAND:  minisat+ -S /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-stein45.opb /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-stein45.opb
IDLAUNCH: 13921
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        783328 kB
Buffers:         33524 kB
Cached:         184756 kB
SwapCached:        136 kB
Active:         106700 kB
Inactive:       113976 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        783076 kB
SwapTotal:     2097892 kB
SwapFree:      2097324 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6220 kB
Slab:            24844 kB
Committed_AS:    63488 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-20 21:48:58 (client local time) WITH STATUS 30 IN 128.836 SECONDS
stats: 13921 0 128.836 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 331 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): ..........................................................................................................................................................................................................................................................................................................................................
c ---[   0]---> Sorter-cost:  718     Base:
c =================================[SATELITE+]==================================
c |           |     ORIGINAL     |              LEARNT              |          |
c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
c ==============================================================================
c |         0 |    1097     2792 |     329       0        0     nan |  0.000 % |
c   -- subsuming                       
c   -- var.elim.:  499/499          
c   -- var.elim.:  273/273          
c   -- subsuming                       
c   -- var.elim.:  204/204          
c   -- var.elim.:  113/113          
c   -- var.elim.:  99/99          
c   -- var.elim.:  100/100          
c |         0 |     810     3254 |      --       0       --      -- |     --   | -287/463
c |         0 |     810     3254 |     324       0        0     nan |  0.000 % |
c ==============================================================================
c (current CPU-time: 0.116982 s)
c ==============================================================================
c [1mFound solution: 35[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:  288     Base:
c =================================[SATELITE+]==================================
c |           |     ORIGINAL     |              LEARNT              |          |
c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
c ==============================================================================
c |         0 |    1528     4950 |     458       0        0     nan |  0.000 % |
c   -- subsuming                       
c   -- var.elim.:  541/541          
c   -- var.elim.:  305/305          
c   -- subsuming                       
c   -- var.elim.:  64/64          
c   -- var.elim.:  10/10          
c |         0 |    1437     4873 |      --       0       --      -- |     --   | -87/-65
c |         0 |    1437     4873 |     574       0        0     nan |  0.000 % |
c |       101 |    1437     4873 |     632     101      789     7.8 |  1.481 % |
c ==============================================================================
c (current CPU-time: 0.207968 s)
c ==============================================================================
c [1mFound solution: 33[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    0     Base:
c =================================[SATELITE+]==================================
c |           |     ORIGINAL     |              LEARNT              |          |
c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
c ==============================================================================
c |       109 |    1564     5202 |     469     109      825     7.6 |  1.481 % |
c   -- subsuming                       
c   -- var.elim.:  187/187          
c   -- var.elim.:  102/102          
c |       109 |    1470     5038 |      --     109       --      -- |     --   | -81/-69
c |       109 |    1470     5038 |     588     109      825     7.6 |  1.481 % |
c ==============================================================================
c (current CPU-time: 0.235964 s)
c ==============================================================================
c [1mFound solution: 32[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    0     Base:
c =================================[SATELITE+]==================================
c |           |     ORIGINAL     |              LEARNT              |          |
c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
c ==============================================================================
c |       109 |    1534     5209 |     460     109      825     7.6 |  1.481 % |
c   -- subsuming                       
c   -- var.elim.:  121/121          
c   -- var.elim.:  53/53          
c |       109 |    1491     5159 |      --     109       --      -- |     --   | -43/-49
c |       109 |    1491     5159 |     596     109      825     7.6 |  1.481 % |
c ==============================================================================
c (current CPU-time: 0.25896 s)
c ==============================================================================
c [1mFound solution: 31[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    0     Base:
c =================================[SATELITE+]==================================
c |           |     ORIGINAL     |              LEARNT              |          |
c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
c ==============================================================================
c |       113 |    1501     5186 |     450     113      972     8.6 |  1.481 % |
c   -- subsuming                       
c   -- var.elim.:  73/73          
c   -- var.elim.:  15/15          
c |       113 |    1486     5073 |      --     113       --      -- |     --   | -3/14
c |       113 |    1486     5073 |     594     113      972     8.6 |  1.481 % |
c |       214 |    1486     5073 |     653     214     3835    17.9 |  3.555 % |
c |       364 |    1486     5073 |     719     364     8222    22.6 |  3.557 % |
c |       589 |    1486     5073 |     791     589    15791    26.8 |  3.558 % |
c |       927 |    1477     5041 |     864     925    24425    26.4 |  4.031 % |
c |      1433 |    1454     4966 |     936     804    20614    25.6 |  5.454 % |
c |      2192 |    1454     4966 |    1030    1192    36199    30.4 |  5.453 % |
c |      3332 |    1454     4966 |    1133    1157    34791    30.1 |  5.454 % |
c |      5040 |    1439     4902 |    1233    1237    35825    29.0 |  6.877 % |
c ==============================================================================
c (current CPU-time: 1.67075 s)
c ==============================================================================
c [1mFound solution: 30[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    0     Base:
c =================================[SATELITE+]==================================
c |           |     ORIGINAL     |              LEARNT              |          |
c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
c ==============================================================================
c |      6560 |    1538     5167 |     461    1353    39768    29.4 |  6.877 % |
c   -- subsuming                       
c   -- var.elim.:  201/201          
c   -- var.elim.:  123/123          
c |      6560 |    1459     5086 |      --    1353       --      -- |     --   | -79/-80
c |      6560 |    1459     5086 |     583    1116    29693    26.6 |  6.877 % |
c |      6660 |    1459     5086 |     641     596    10377    17.4 |  8.041 % |
c |      6810 |    1459     5086 |     706     746    15526    20.8 |  8.041 % |
c |      7035 |    1459     5086 |     776     723    14964    20.7 |  8.042 % |
c |      7373 |    1459     5086 |     854     765    17143    22.4 |  8.042 % |
c |      7879 |    1459     5086 |     939     933    22826    24.5 |  8.042 % |
c |      8638 |    1459     5086 |    1033     973    21905    22.5 |  8.041 % |
c |      9778 |    1459     5086 |    1137     927    19234    20.7 |  8.041 % |
c |     11486 |    1459     5086 |    1250     949    18993    20.0 |  8.040 % |
c |     14048 |    1459     5086 |    1376    1184    26717    22.6 |  8.043 % |
c |     17893 |    1459     5086 |    1513    1498    35292    23.6 |  8.041 % |
c |     23659 |    1459     5086 |    1665    1175    26149    22.3 |  8.041 % |
c |     32308 |    1459     5086 |    1831    1400    32343    23.1 |  8.043 % |
c |     45283 |    1454     5057 |    2007    1840    46184    25.1 |  8.284 % |
c |     64744 |    1454     5057 |    2208    2027    53161    26.2 |  8.283 % |
c |     93936 |    1454     5057 |    2429    2220    58562    26.4 |  8.288 % |
c |    137726 |    1443     4974 |    2652    2312    62110    26.9 |  9.237 % |
c |    203411 |    1443     4974 |    2917    1970    56150    28.5 |  9.238 % |
c |    301937 |    1317     4326 |    2928    2283    54607    23.9 | 14.906 % |
c |    449726 |    1060     3283 |    2593    2823    48652    17.2 | 23.886 % |
c ==============================================================================
c [1mOptimal solution: 30[0m
s OPTIMUM FOUND
v V0001_bit0 V0002_bit0 -V0003_bit0 V0004_bit0 -V0005_bit0 V0006_bit0 V0007_bit0 -V0008_bit0 V0009_bit0 -V0010_bit0 -V0011_bit0 -V0012_bit0 V0013_bit0 V0014_bit0 V0015_bit0 -V0016_bit0 V0017_bit0 V0018_bit0 -V0019_bit0 V0020_bit0 V0021_bit0 -V0022_bit0 V0023_bit0 -V0024_bit0 V0025_bit0 V0026_bit0 V0027_bit0 V0028_bit0 -V0029_bit0 -V0030_bit0 V0031_bit0 V0032_bit0 V0033_bit0 V0034_bit0 V0035_bit0 V0036_bit0 V0037_bit0 V0038_bit0 -V0039_bit0 V0040_bit0 V0041_bit0 V0042_bit0 -V0043_bit0 -V0044_bit0 V0045_bit0
c _______________________________________________________________________________
c 
c restarts              : 34
c conflicts             : 463559         (3599 /sec)
c decisions             : 528051         (4100 /sec)
c propagations          : 33546090       (260448 /sec)
c inspects              : 313754395      (2435954 /sec)
c CPU time              : 128.801 s
c _______________________________________________________________________________
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.85 0.94 0.90 2/54 5428
Raw data (stat): 5428 (runsolver) R 5427 18865 18864 0 -1 64 1 0 0 0 0 0 0 0 19 0 1 0 539787863 1052672 97 4294967295 134512640 135381576 3221224432 3221219804 135024803 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 97 215 215 0 42 0
vsize: 1028
[startup+10.0007 s]
Raw data (loadavg): 0.87 0.94 0.90 2/54 5428
Raw data (stat): 5428 (minisat+) R 5427 18865 18864 0 -1 0 548 0 0 0 997 1 0 0 25 0 1 0 539787863 3727360 526 4294967295 134512640 134672761 3221224544 3221223728 134615554 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 910 526 603 41 0 869 0
vsize: 3640
[startup+20.0008 s]
Raw data (loadavg): 0.89 0.94 0.90 2/54 5428
Raw data (stat): 5428 (minisat+) R 5427 18865 18864 0 -1 0 581 0 0 0 1997 1 0 0 25 0 1 0 539787863 3846144 559 4294967295 134512640 134672761 3221224544 3221223728 134615625 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 939 559 603 41 0 898 0
vsize: 3756
[startup+30.0018 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 5428
Raw data (stat): 5428 (minisat+) R 5427 18865 18864 0 -1 0 604 0 0 0 2997 1 0 0 25 0 1 0 539787863 3969024 582 4294967295 134512640 134672761 3221224544 3221223728 134615638 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 969 582 603 41 0 928 0
vsize: 3876
[startup+40.0014 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 5428
Raw data (stat): 5428 (minisat+) R 5427 18865 18864 0 -1 0 619 0 0 0 3997 2 0 0 25 0 1 0 539787863 3969024 597 4294967295 134512640 134672761 3221224544 3221223728 134615747 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 969 597 603 41 0 928 0
vsize: 3876
[startup+50.0015 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 5428
Raw data (stat): 5428 (minisat+) R 5427 18865 18864 0 -1 0 632 0 0 0 4997 2 0 0 25 0 1 0 539787863 4091904 610 4294967295 134512640 134672761 3221224544 3221223600 134645408 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 999 610 603 41 0 958 0
vsize: 3996
[startup+60.0014 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 5428
Raw data (stat): 5428 (minisat+) R 5427 18865 18864 0 -1 0 648 0 0 0 5997 2 0 0 25 0 1 0 539787863 4091904 626 4294967295 134512640 134672761 3221224544 3221223728 134615727 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 999 626 603 41 0 958 0
vsize: 3996
[startup+70.0011 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 5428
Raw data (stat): 5428 (minisat+) R 5427 18865 18864 0 -1 0 654 0 0 0 6998 2 0 0 25 0 1 0 539787863 4091904 632 4294967295 134512640 134672761 3221224544 3221223508 1075346949 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 999 632 603 41 0 958 0
vsize: 3996
[startup+80.0023 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 5428
Raw data (stat): 5428 (minisat+) R 5427 18865 18864 0 -1 0 663 0 0 0 7998 2 0 0 25 0 1 0 539787863 4214784 641 4294967295 134512640 134672761 3221224544 3221223584 134613012 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1029 641 603 41 0 988 0
vsize: 4116
[startup+90.0023 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 5428
Raw data (stat): 5428 (minisat+) R 5427 18865 18864 0 -1 0 663 0 0 0 8998 2 0 0 25 0 1 0 539787863 4214784 641 4294967295 134512640 134672761 3221224544 3221223728 134616001 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1029 641 603 41 0 988 0
vsize: 4116
[startup+100.002 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 5428
Raw data (stat): 5428 (minisat+) R 5427 18865 18864 0 -1 0 663 0 0 0 9998 2 0 0 25 0 1 0 539787863 4214784 641 4294967295 134512640 134672761 3221224544 3221223668 134566118 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1029 641 603 41 0 988 0
vsize: 4116
[startup+110.003 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 5428
Raw data (stat): 5428 (minisat+) R 5427 18865 18864 0 -1 0 668 0 0 0 10998 2 0 0 25 0 1 0 539787863 4214784 646 4294967295 134512640 134672761 3221224544 3221223728 134615625 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1029 646 603 41 0 988 0
vsize: 4116
[startup+120.004 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 5428
Raw data (stat): 5428 (minisat+) R 5427 18865 18864 0 -1 0 670 0 0 0 11998 2 0 0 25 0 1 0 539787863 4214784 648 4294967295 134512640 134672761 3221224544 3221223728 134615625 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1029 648 603 41 0 988 0
vsize: 4116
[startup+128.828 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 5428
Raw data (stat): 5428 (minisat+) R 5427 18865 18864 0 -1 0 670 0 0 0 11998 2 0 0 25 0 1 0 539787863 4214784 648 4294967295 134512640 134672761 3221224544 3221223728 134615625 0 0 5 16386 0 0 0 17 0 0 0
Raw data (statm): 1029 648 603 41 0 988 0
vsize: 0

Child status: 30
Real time (s): 128.828
CPU time (s): 128.836
CPU user time (s): 128.802
CPU system time (s): 0.033994
CPU usage (%): 100.006
Max. virtual memory (Kb): 4116
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	30
#### END VERIFIER DATA ####