Trace number 247691

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, and are wall clock time (not CPU 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 109 ACSAT 0.837871 0.863341

DiagnosticValue
CHECKS129940
NODES489

General information on the benchmark

Namelangford/
langford-3-9-ext.xml
MD5SUMa731d402b026bb8d7b1457007177cf75
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.036993
SatisfiableYES
(Un)Satisfiability was proved
Number of variables27
Number of constraints369
Maximum constraint arity2
Maximum domain size27
Number of constraints which are defined in extension369
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.29	   
0.29	Abscon 109 (November, 2006)
0.29	   
0.29	   configuration
0.29	     name=mac.xml
0.32	   
0.32	   instance
0.32	     name=/tmp/evaluation/247691-1168085867/unknown.xml
0.35	   
0.35	   domains being loaded...
0.35	   
0.35	   variables being loaded...
0.39	     nbVariables=27  nbDomainTypes=1  minDomainSize=27  maxDomainSize=27
0.39	       =>  wckTime=0.092  cpuTime=0.08  mem=6M951
0.39	   
0.39	   relations being loaded...
0.39	   
0.39	   constraints being loaded...
0.51	     nbConstraints=351  nbRelationTypes=10  nbMergedConstraints=18  nbExtensionStructures=10
0.51	     nbSharedExtensionStructures=341  nbConflictsStructures=10  nbSharedConflictsStructures=341
0.51	     nbSharedBinaryRepresentations=485  maxDegree=26  maxArity=2
0.51	       =>  wckTime=0.217  cpuTime=0.16  mem=8M902
0.55	   
0.55	   solver IterativeSystematicSolver being built... 
0.70	       =>  wckTime=0.407  cpuTime=0.28  mem=13M435
0.72	   
0.72	   preprocessing
0.72	     nbConstraintChecks=1107  nbPropagations=45  nbRevisions=45  nbUselessRevisions=0  nbRemovedValues=324
0.72	     detectedInconsistency=no
0.72	       =>  wckTime=0.013  cpuTime=0.01  mem=13M435
0.75	   
0.75	   search
0.75	     run=0  nbConstraintChecks=7659  nbPropagations=358  nbRevisions=1622  nbUselessRevisions=981  nbAssignments=25
0.75	     nbFailedAssignments=4  nbBacktracks=12  nbVisitedNodes=34  nbRestartNogoods=0  mapSize=4  nbInferences=0
0.75	     nbTooLargeKeys=0
0.75	       =>  wckTime=0.042  cpuTime=0.03  mem=14M476
0.76	   
0.76	   search
0.76	     run=1  nbConstraintChecks=17960  nbPropagations=1091  nbRevisions=5198  nbUselessRevisions=3158  nbAssignments=55
0.76	     nbFailedAssignments=10  nbBacktracks=27  nbVisitedNodes=74  nbRestartNogoods=3  mapSize=9  nbInferences=0
0.76	     nbTooLargeKeys=0
0.76	       =>  wckTime=0.058  cpuTime=0.04  mem=14M476
0.78	   
0.78	   search
0.78	     run=2  nbConstraintChecks=31027  nbPropagations=2348  nbRevisions=11642  nbUselessRevisions=7148  nbAssignments=103
0.78	     nbFailedAssignments=22  nbBacktracks=54  nbVisitedNodes=141  nbRestartNogoods=5  mapSize=18  nbInferences=0
0.78	     nbTooLargeKeys=0
0.78	       =>  wckTime=0.078  cpuTime=0.05  mem=14M476
0.79	   
0.79	   search
0.79	     run=3  nbConstraintChecks=43067  nbPropagations=4097  nbRevisions=20618  nbUselessRevisions=12741
0.79	     nbAssignments=155  nbFailedAssignments=32  nbBacktracks=90  nbVisitedNodes=212  nbRestartNogoods=10  mapSize=29
0.79	     nbInferences=0  nbTooLargeKeys=0
0.79	       =>  wckTime=0.089  cpuTime=0.06  mem=14M476
0.80	   
0.81	   search
0.81	     run=4  nbConstraintChecks=60820  nbPropagations=6636  nbRevisions=33885  nbUselessRevisions=21130
0.81	     nbAssignments=231  nbFailedAssignments=49  nbBacktracks=143  nbVisitedNodes=319  nbRestartNogoods=13  mapSize=47
0.81	     nbInferences=0  nbTooLargeKeys=0
0.81	       =>  wckTime=0.101  cpuTime=0.07  mem=14M476
0.82	   
0.82	   search
0.82	     run=5  nbConstraintChecks=91530  nbPropagations=10355  nbRevisions=54654  nbUselessRevisions=34441
0.82	     nbAssignments=338  nbFailedAssignments=80  nbBacktracks=219  nbVisitedNodes=474  nbRestartNogoods=16  mapSize=73
0.82	     nbInferences=0  nbTooLargeKeys=0
0.82	       =>  wckTime=0.117  cpuTime=0.09  mem=14M476
0.85	   
0.85	   search
0.85	     run=6  nbConstraintChecks=128833  nbPropagations=15582  nbRevisions=85161  nbUselessRevisions=54465
0.85	     nbAssignments=489  nbFailedAssignments=118  nbBacktracks=305  nbVisitedNodes=688  nbRestartNogoods=16  mapSize=106
0.85	     nbInferences=0  nbTooLargeKeys=0
0.85	       =>  wckTime=0.142  cpuTime=0.11  mem=14M476
0.85	   
0.85	   global
0.85	     nbConstraintChecks=129940  nbPropagations=15627  nbRevisions=85206  nbUselessRevisions=54465  nbRestartNogoods=16
0.85	     solvingWckTime=0.143  solvingCpuTime=0.11  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.85	     globalCpuTime=0.44
0.85	       =>  wckTime=0.553  cpuTime=0.39  mem=14M476
0.85	   
0.85	s SATISFIABLE
0.85	v 0 6 18 15 7 3 8 5 1 2 9 22 20 13 10 16 14 11 4 12 26 25 19 17 24 23 21 
0.85	d NODES 489
0.85	d CHECKS 129940
0.85	   
0.85	   totalWckTime=0.629  totalCpuTime=0.44

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node4/watcher-247691-1168085867 -o ROOT/results/node4/solver-247691-1168085867 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/247691-1168085867/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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
Current StackSize limit: 10240 KiB

/proc/loadavg: 0.44 0.34 0.92 2/93 15459
/proc/meminfo: memFree=1297720/2055920 swapFree=4191880/4192956
[pid=15458] ppid=15456 vsize=18540 CPUtime=0
/proc/15458/stat : 15458 (runsolver) R 15456 15458 15347 0 -1 4194368 17 0 0 0 0 0 0 0 20 0 1 0 156984318 18984960 279 18446744073709551615 4194304 4267372 548682068960 18446744073709551615 259913215271 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/15458/statm: 4635 279 244 17 0 2626 0

[startup+0.102339 s]
/proc/loadavg: 0.44 0.34 0.92 2/93 15459
/proc/meminfo: memFree=1297720/2055920 swapFree=4191880/4192956
[pid=15458] ppid=15456 vsize=914988 CPUtime=0.08
/proc/15458/stat : 15458 (java) R 15456 15458 15347 0 -1 0 3022 0 1 0 7 1 0 0 24 0 8 0 156984318 936947712 2768 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/15458/statm: 228747 2768 1436 14 0 215242 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 914988

[startup+0.514379 s]
/proc/loadavg: 0.44 0.34 0.92 2/93 15459
/proc/meminfo: memFree=1297720/2055920 swapFree=4191880/4192956
[pid=15458] ppid=15456 vsize=915328 CPUtime=0.49
/proc/15458/stat : 15458 (java) R 15456 15458 15347 0 -1 0 6606 0 1 0 45 4 0 0 25 0 8 0 156984318 937295872 6345 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4073666720 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/15458/statm: 228832 6345 2155 14 0 215302 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 0.863341
CPU time (s): 0.837871
CPU user time (s): 0.771882
CPU system time (s): 0.065989
CPU usage (%): 97.0498
Max. virtual memory (cumulated for all children) (KiB): 915440

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.771882
system time used= 0.065989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8525
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= 877
involuntary context switches= 1030

runsolver used 0.001999 s user time and 0.009998 s system time

The end

Launcher Data (download as text)

Begin job on node4 on Sat Jan  6 12:17:58 UTC 2007


IDJOB= 247691
IDBENCH= 11650
FILE ID= node4/247691-1168085867

PBS_JOBID= 3476341

Free space on /tmp= 66285 MiB

BENCH NAME= HOME/pub/bench/CPAI06/langford/langford-3-9-ext.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/247691-1168085867/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-247691-1168085867 -o ROOT/results/node4/solver-247691-1168085867 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/247691-1168085867/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  a731d402b026bb8d7b1457007177cf75

RANDOM SEED= 515954916

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.223
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		: 3000.223
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:       1298200 kB
Buffers:         54872 kB
Cached:         327904 kB
SwapCached:        268 kB
Active:         355872 kB
Inactive:       317328 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1298200 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:           25656 kB
Writeback:           0 kB
Mapped:         318664 kB
Slab:            68612 kB
Committed_AS:  4637556 kB
PageTables:       2928 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= 66285 MiB



End job on node4 on Sat Jan  6 12:18:20 UTC 2007