Trace number 1084518

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 into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. 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.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. 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 X seconds (see the parameters in the trace). 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 X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    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.
  5. 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 provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
Abscon 112v4 ESACSAT 0.942856 0.999116

DiagnosticValue
CHECKS16536
NODES41

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-11.xml
MD5SUM73c919607a4e7a8e4ee912d3bd00ef1b
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
Satisfiable
(Un)Satisfiability was proved
Number of variables22
Number of constraints242
Maximum constraint arity2
Maximum domain size22
Number of constraints which are defined in extension0
Number of constraints which are defined in intension242
Global constraints used (with number of constraints)

Solver Data (download as text)

0.06/0.09	
0.06/0.09	Abscon 112 (May, 2008)
0.18/0.26	
0.18/0.26	   configuration
0.18/0.26	     name=esac.xml
0.18/0.29	   
0.18/0.29	   instance
0.18/0.29	     name=HOME/instance-1084518-1215230586.xml
0.29/0.33	   
0.29/0.33	   domains being loaded...
0.29/0.34	   
0.29/0.34	   variables being loaded...
0.29/0.36	     nbVariables=22  nbDomainTypes=1  minDomainSize=22  maxDomainSize=22  nbTotalValues=484
0.29/0.36	       =>  wckTime=0.106  cpuTime=0.1  mem=7M919
0.29/0.36	   
0.29/0.36	   predicates being loaded...
0.38/0.43	   
0.38/0.43	   constraints being loaded...
0.58/0.67	     nbConstraints=232  nbGlobalConstraints=1  nbMergedConstraints=11  nbConvertedConstraints=231
0.58/0.67	     nbConvertConstraintsChecks=5808  nbExtensionStructures=12  nbSharedExtensionStructures=219
0.58/0.67	     nbConflictsStructures=12  nbSharedConflictsStructures=219  nbSharedBinaryRepresentations=483  minDegree=22
0.58/0.67	     maxDegree=22  minArity=2  avgArity=2.09  maxArity=22  nbGenerators=0  nbFusions=0  symmetryWckTime=0.066
0.58/0.67	     symmetryCpuTime=0.04  nbCliques=1
0.58/0.68	       =>  wckTime=0.416  cpuTime=0.32  mem=14M831
0.67/0.72	   
0.67/0.72	   solver IterativeSystematicSolver being built... 
0.67/0.79	   
0.67/0.79	   INFO : Forward propagation technique limited 
0.77/0.86	       =>  wckTime=0.6  cpuTime=0.43  mem=19M725
0.87/0.90	   
0.87/0.90	   preprocessing
0.87/0.90	     nbConstraintChecks=10433  nbPropagations=425  nbRevisions=1091  nbUselessRevisions=707  nbSingletonTests=37
0.87/0.90	     nbEffectiveSingletonTests=0  nbACRemovals=154  nbFoundSingletons=0  nbRemovedValues=154  detectedInconsistency=no
0.87/0.90	       =>  wckTime=0.041  cpuTime=0.02  mem=19M725
0.87/0.94	   
0.87/0.94	   search
0.87/0.94	     run=0  nbConstraintChecks=6103  minDepth=8  maxDepth=22  nbPropagations=758  nbRevisions=2332
0.87/0.94	     nbUselessRevisions=1625  nbAssignments=41  nbFailedAssignments=7  nbBacktracks=12  nbVisitedNodes=53
0.87/0.94	     nbRestartNogoods=0  nbFoundSolutions=1  mapSize=6  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0
0.87/0.94	     nbREliminables=0  nbIEliminables=16.58  nbDEliminables=0  nbPEliminables=0
0.87/0.94	       =>  wckTime=0.077  cpuTime=0.04  mem=20M717
0.87/0.94	   
0.87/0.94	   global
0.87/0.94	     nbConstraintChecks=16536  nbPropagations=1183  nbRevisions=3423  nbUselessRevisions=2332  nbRestartNogoods=0
0.87/0.94	     solvingWckTime=0.079  solvingCpuTime=0.04  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.87/0.94	     firstSolutionCpuTime=0.47  globalCpuTime=0.51
0.87/0.94	       =>  wckTime=0.682  cpuTime=0.47  mem=20M717
0.87/0.94	   
0.87/0.94	s SATISFIABLE
0.87/0.94	v 19 3 4 15 10 11 1 5 7 2 0 21 6 8 20 16 18 9 14 17 13 12 
0.87/0.94	d NODES 41
0.87/0.94	d CHECKS 16536
0.87/0.94	   
0.87/0.94	   totalWckTime=0.752  totalCpuTime=0.52

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084518-1215230586/watcher-1084518-1215230586 -o /tmp/evaluation-result-1084518-1215230586/solver-1084518-1215230586 -C 1800 -W 2200 -M 900 --output-limit 1,15 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-1084518-1215230586.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2200 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.23 2.05 2.02 4/81 22541
/proc/meminfo: memFree=1758168/2055920 swapFree=4180436/4192956
[pid=22541] ppid=22539 vsize=18572 CPUtime=0
/proc/22541/stat : 22541 (runsolver) R 22539 22541 19582 0 -1 4194368 16 0 0 0 0 0 0 0 19 0 1 0 1552730355 19017728 292 996147200 4194304 4296836 548682068336 18446744073709551615 269757246759 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/22541/statm: 4643 292 257 25 0 2626 0

[startup+0.0799911 s]
/proc/loadavg: 2.23 2.05 2.02 4/81 22541
/proc/meminfo: memFree=1758168/2055920 swapFree=4180436/4192956
[pid=22541] ppid=22539 vsize=865856 CPUtime=0.06
/proc/22541/stat : 22541 (java) S 22539 22541 19582 0 -1 0 3500 0 1 0 5 1 0 0 19 0 9 0 1552730355 886636544 2990 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/22541/statm: 216464 2990 1619 9 0 211026 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 865856

[startup+0.101995 s]
/proc/loadavg: 2.23 2.05 2.02 4/81 22541
/proc/meminfo: memFree=1758168/2055920 swapFree=4180436/4192956
[pid=22541] ppid=22539 vsize=865884 CPUtime=0.08
/proc/22541/stat : 22541 (java) S 22539 22541 19582 0 -1 0 3732 0 1 0 7 1 0 0 19 0 9 0 1552730355 886665216 3195 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/22541/statm: 216471 3195 1693 9 0 211026 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865884

[startup+0.302019 s]
/proc/loadavg: 2.23 2.05 2.02 4/81 22541
/proc/meminfo: memFree=1758168/2055920 swapFree=4180436/4192956
[pid=22541] ppid=22539 vsize=866284 CPUtime=0.29
/proc/22541/stat : 22541 (java) S 22539 22541 19582 0 -1 0 5801 0 1 0 26 3 0 0 19 0 9 0 1552730355 887074816 5175 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/22541/statm: 216571 5175 1953 9 0 211099 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866284

[startup+0.701076 s]
/proc/loadavg: 2.23 2.05 2.02 4/81 22541
/proc/meminfo: memFree=1758168/2055920 swapFree=4180436/4192956
[pid=22541] ppid=22539 vsize=867724 CPUtime=0.67
/proc/22541/stat : 22541 (java) S 22539 22541 19582 0 -1 0 10436 282 1 0 61 6 0 0 19 0 9 0 1552730355 888549376 7667 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/22541/statm: 216931 7667 2078 9 0 211437 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 867724

Solver just ended. Dumping a history of the last processes samples

[startup+0.901099 s]
/proc/loadavg: 2.23 2.05 2.02 4/81 22541
/proc/meminfo: memFree=1758168/2055920 swapFree=4180436/4192956
[pid=22541] ppid=22539 vsize=867844 CPUtime=0.87
/proc/22541/stat : 22541 (java) S 22539 22541 19582 0 -1 0 15442 282 1 0 78 9 0 0 19 0 9 0 1552730355 888672256 10150 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/22541/statm: 216961 10150 2631 9 0 211467 0
Current children cumulated CPU time (s) 0.87
Current children cumulated vsize (KiB) 867844

Child status: 0
Real time (s): 0.999116
CPU time (s): 0.942856
CPU user time (s): 0.833873
CPU system time (s): 0.108983
CPU usage (%): 94.369
Max. virtual memory (cumulated for all children) (KiB): 867844

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.833873
system time used= 0.108983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16112
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 970
involuntary context switches= 1055

runsolver used 0.004999 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node13 at 2008-07-05 06:03:06
IDJOB=1084518
IDBENCH=57569
IDSOLVER=364
FILE ID=node13/1084518-1215230586
PBS_JOBID= 7881759
Free space on /tmp= 66524 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-11.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084518-1215230586/watcher-1084518-1215230586 -o /tmp/evaluation-result-1084518-1215230586/solver-1084518-1215230586 -C 1800 -W 2200 -M 900 --output-limit 1,15  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-1084518-1215230586.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 73c919607a4e7a8e4ee912d3bd00ef1b
RANDOM SEED=242270814

node13.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.238
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.238
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1758648 kB
Buffers:         47888 kB
Cached:         158132 kB
SwapCached:       6956 kB
Active:         125428 kB
Inactive:       109948 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1758648 kB
SwapTotal:     4192956 kB
SwapFree:      4180436 kB
Dirty:            2364 kB
Writeback:           0 kB
Mapped:          45272 kB
Slab:            46988 kB
Committed_AS:  3100432 kB
PageTables:       2020 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66524 MiB
End job on node13 at 2008-07-05 06:03:07