Trace number 247690

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 ESACSAT 0.920859 0.975207

DiagnosticValue
CHECKS151110
NODES491

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)

0.31	   
0.31	Abscon 109 (November, 2006)
0.31	   
0.31	   configuration
0.31	     name=esac.xml
0.35	   
0.35	   instance
0.35	     name=/tmp/evaluation/247690-1168393547/unknown.xml
0.38	   
0.38	   domains being loaded...
0.38	   
0.38	   variables being loaded...
0.42	     nbVariables=27  nbDomainTypes=1  minDomainSize=27  maxDomainSize=27
0.42	       =>  wckTime=0.101  cpuTime=0.09  mem=6M951
0.42	   
0.42	   relations being loaded...
0.43	   
0.43	   constraints being loaded...
0.55	     nbConstraints=351  nbRelationTypes=10  nbMergedConstraints=18  nbExtensionStructures=10
0.55	     nbSharedExtensionStructures=341  nbConflictsStructures=10  nbSharedConflictsStructures=341
0.55	     nbSharedBinaryRepresentations=485  maxDegree=26  maxArity=2
0.55	       =>  wckTime=0.237  cpuTime=0.17  mem=8M902
0.59	   
0.59	   solver IterativeSystematicSolver being built... 
0.76	       =>  wckTime=0.443  cpuTime=0.31  mem=14M559
0.80	   
0.80	   preprocessing
0.80	     nbConstraintChecks=16978  nbPropagations=435  nbRevisions=1941  nbUselessRevisions=1145  nbSingletonTests=34
0.80	     nbEffectiveSingletonTests=0  nbESACBranches=4  nbRemovedValues=324  detectedInconsistency=no
0.80	       =>  wckTime=0.04  cpuTime=0.03  mem=14M559
0.83	   
0.83	   search
0.83	     run=0  nbConstraintChecks=8301  nbPropagations=770  nbRevisions=3637  nbUselessRevisions=2174  nbAssignments=27
0.83	     nbFailedAssignments=6  nbBacktracks=15  nbVisitedNodes=38  nbRestartNogoods=0  mapSize=5  nbInferences=0
0.83	     nbTooLargeKeys=0
0.83	       =>  wckTime=0.063  cpuTime=0.04  mem=14M559
0.83	   
0.83	   search
0.83	     run=1  nbConstraintChecks=14879  nbPropagations=1774  nbRevisions=8517  nbUselessRevisions=5105  nbAssignments=49
0.83	     nbFailedAssignments=10  nbBacktracks=30  nbVisitedNodes=67  nbRestartNogoods=3  mapSize=10  nbInferences=0
0.83	     nbTooLargeKeys=0
0.83	       =>  wckTime=0.071  cpuTime=0.04  mem=14M559
0.85	   
0.85	   search
0.85	     run=2  nbConstraintChecks=28149  nbPropagations=3297  nbRevisions=16400  nbUselessRevisions=9964  nbAssignments=91
0.85	     nbFailedAssignments=22  nbBacktracks=54  nbVisitedNodes=128  nbRestartNogoods=4  mapSize=18  nbInferences=0
0.85	     nbTooLargeKeys=0
0.85	       =>  wckTime=0.088  cpuTime=0.05  mem=14M559
0.86	   
0.86	   search
0.86	     run=3  nbConstraintChecks=38524  nbPropagations=5240  nbRevisions=26430  nbUselessRevisions=16189
0.86	     nbAssignments=139  nbFailedAssignments=31  nbBacktracks=87  nbVisitedNodes=192  nbRestartNogoods=8  mapSize=28
0.86	     nbInferences=0  nbTooLargeKeys=0
0.86	       =>  wckTime=0.099  cpuTime=0.06  mem=14M559
0.88	   
0.88	   search
0.88	     run=4  nbConstraintChecks=55071  nbPropagations=7948  nbRevisions=40444  nbUselessRevisions=25006
0.88	     nbAssignments=214  nbFailedAssignments=46  nbBacktracks=141  nbVisitedNodes=297  nbRestartNogoods=10  mapSize=46
0.88	     nbInferences=0  nbTooLargeKeys=0
0.88	       =>  wckTime=0.112  cpuTime=0.07  mem=14M559
0.90	   
0.90	   search
0.90	     run=5  nbConstraintChecks=91669  nbPropagations=12048  nbRevisions=63789  nbUselessRevisions=40128
0.90	     nbAssignments=326  nbFailedAssignments=81  nbBacktracks=218  nbVisitedNodes=466  nbRestartNogoods=12  mapSize=76
0.90	     nbInferences=0  nbTooLargeKeys=0
0.90	       =>  wckTime=0.133  cpuTime=0.09  mem=14M559
0.92	   
0.92	   search
0.92	     run=6  nbConstraintChecks=134132  nbPropagations=17781  nbRevisions=98098  nbUselessRevisions=62822
0.92	     nbAssignments=491  nbFailedAssignments=130  nbBacktracks=307  nbVisitedNodes=706  nbRestartNogoods=12  mapSize=109
0.92	     nbInferences=0  nbTooLargeKeys=0
0.92	       =>  wckTime=0.16  cpuTime=0.11  mem=14M559
0.92	   
0.92	   global
0.92	     nbConstraintChecks=151110  nbPropagations=18216  nbRevisions=100039  nbUselessRevisions=63967  nbRestartNogoods=12
0.92	     solvingWckTime=0.161  solvingCpuTime=0.11  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.92	     globalCpuTime=0.48
0.92	       =>  wckTime=0.608  cpuTime=0.43  mem=14M559
0.93	   
0.93	s SATISFIABLE
0.93	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 
0.93	d NODES 491
0.93	d CHECKS 151110
0.93	   
0.93	   totalWckTime=0.689  totalCpuTime=0.49

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/node13/watcher-247690-1168393547 -o ROOT/results/node13/solver-247690-1168393547 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/247690-1168393547/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: 1.09 1.30 1.52 4/98 28199
/proc/meminfo: memFree=1784112/2055920 swapFree=4191880/4192956
[pid=28198] ppid=28196 vsize=1784 CPUtime=0
/proc/28198/stat : 28198 (java) R 28196 28198 27860 0 -1 0 169 0 0 0 0 0 0 0 19 0 1 0 187749750 1826816 140 18446744073709551615 134512640 134570532 4294956624 18446744073709551615 4294960144 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/28198/statm: 446 140 106 14 0 91 0

[startup+0.104958 s]
/proc/loadavg: 1.09 1.30 1.52 4/98 28199
/proc/meminfo: memFree=1784112/2055920 swapFree=4191880/4192956
[pid=28198] ppid=28196 vsize=914988 CPUtime=0.08
/proc/28198/stat : 28198 (java) R 28196 28198 27860 0 -1 0 2989 0 1 0 7 1 0 0 17 0 8 0 187749750 936947712 2735 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4152591196 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/28198/statm: 228747 2735 1426 14 0 215242 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 914988

[startup+0.516013 s]
/proc/loadavg: 1.09 1.30 1.52 4/98 28199
/proc/meminfo: memFree=1784112/2055920 swapFree=4191880/4192956
[pid=28198] ppid=28196 vsize=915328 CPUtime=0.49
/proc/28198/stat : 28198 (java) R 28196 28198 27860 0 -1 0 6385 0 1 0 45 4 0 0 18 0 8 0 187749750 937295872 6124 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4072949456 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/28198/statm: 228832 6124 2153 14 0 215302 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 0.975207
CPU time (s): 0.920859
CPU user time (s): 0.847871
CPU system time (s): 0.072988
CPU usage (%): 94.427
Max. virtual memory (cumulated for all children) (KiB): 915440

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.847871
system time used= 0.072988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8625
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= 853
involuntary context switches= 961

runsolver used 0.004999 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node13 on Wed Jan 10 01:45:48 UTC 2007


IDJOB= 247690
IDBENCH= 11650
FILE ID= node13/247690-1168393547

PBS_JOBID= 3522820

Free space on /tmp= 66553 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 esac.xml 1 XSax /tmp/evaluation/247690-1168393547/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-247690-1168393547 -o ROOT/results/node13/solver-247690-1168393547 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/247690-1168393547/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  a731d402b026bb8d7b1457007177cf75

RANDOM SEED= 853047672

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		: 3000.247
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		: 3000.247
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:       1784592 kB
Buffers:         19744 kB
Cached:         114044 kB
SwapCached:        376 kB
Active:         173480 kB
Inactive:        41216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1784592 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            4428 kB
Writeback:           0 kB
Mapped:         108340 kB
Slab:            41192 kB
Committed_AS:  6325288 kB
PageTables:       2500 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= 66553 MiB



End job on node13 on Wed Jan 10 01:45:49 UTC 2007