Trace number 192026

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 0.659899 0.729968

DiagnosticValue
CHECKS891
NODES16

General information on the benchmark

Namequeens/
queens-10.xml
MD5SUM3e6285fa23d2db6c237f185a8745044d
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 benchmark0.014997
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables10
Number of constraints45
Maximum constraint arity2
Maximum domain size10
Number of constraints which are defined in extension0
Number of constraints which are defined in intension45
Global constraints used (with number of constraints)

Solver Data (download as text)

0.32	   
0.32	Abscon 109 (November, 2006)
0.32	   
0.32	   configuration
0.32	     name=mac.xml
0.35	   
0.35	   instance
0.35	     name=/tmp/evaluation/192026-1168069103/unknown.xml
0.38	   
0.38	   domains being loaded...
0.38	   
0.38	   variables being loaded...
0.41	     nbVariables=10  nbDomainTypes=1  minDomainSize=10  maxDomainSize=10
0.41	       =>  wckTime=0.091  cpuTime=0.07  mem=6M951
0.41	   
0.41	   predicates being loaded...
0.41	   
0.41	   constraints being loaded...
0.48	     nbConstraints=45  nbConvertedConstraints=45  nbConvertConstraintsChecks=900  nbExtensionStructures=9
0.48	     nbSharedExtensionStructures=36  nbConflictsStructures=9  nbSharedConflictsStructures=36
0.48	     nbSharedBinaryRepresentations=119  maxDegree=9  maxArity=2
0.48	       =>  wckTime=0.165  cpuTime=0.13  mem=7M943
0.52	   
0.52	   solver IterativeSystematicSolver being built... 
0.67	       =>  wckTime=0.346  cpuTime=0.25  mem=13M293
0.67	   
0.67	   preprocessing
0.67	     nbConstraintChecks=0  nbPropagations=10  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
0.67	     detectedInconsistency=no
0.67	       =>  wckTime=0.0010  cpuTime=0.0  mem=13M293
0.69	   
0.69	   search
0.69	     run=0  nbConstraintChecks=891  nbPropagations=89  nbRevisions=238  nbUselessRevisions=125  nbAssignments=16
0.69	     nbFailedAssignments=5  nbBacktracks=1  nbVisitedNodes=23  nbRestartNogoods=0  mapSize=1  nbInferences=0
0.69	     nbTooLargeKeys=0
0.69	       =>  wckTime=0.02  cpuTime=0.01  mem=13M293
0.69	   
0.69	   global
0.69	     nbConstraintChecks=891  nbPropagations=99  nbRevisions=238  nbUselessRevisions=125  nbRestartNogoods=0
0.69	     solvingWckTime=0.022  solvingCpuTime=0.02  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.69	     globalCpuTime=0.32
0.69	       =>  wckTime=0.37  cpuTime=0.27  mem=13M293
0.69	   
0.69	s SATISFIABLE
0.69	v 1 10 7 5 8 2 9 3 6 4 
0.69	d NODES 16
0.69	d CHECKS 891
0.69	   
0.69	   totalWckTime=0.444  totalCpuTime=0.32

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/node41/watcher-192026-1168069103 -o ROOT/results/node41/solver-192026-1168069103 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/192026-1168069103/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: 1.21 1.72 1.75 2/68 4755
/proc/meminfo: memFree=1670088/2055920 swapFree=4192812/4192956
[pid=4754] ppid=4752 vsize=168 CPUtime=0
/proc/4754/stat : 4754 (java) R 4752 4754 4303 0 -1 0 39 0 0 0 0 0 0 0 20 0 1 0 155310230 172032 23 18446744073709551615 134512640 134570532 4294956624 18446744073709551615 1962788 0 0 4096 0 0 0 0 17 1 0 0
/proc/4754/statm: 42 23 18 14 0 2 0

[startup+0.105135 s]
/proc/loadavg: 1.21 1.72 1.75 2/68 4755
/proc/meminfo: memFree=1670088/2055920 swapFree=4192812/4192956
[pid=4754] ppid=4752 vsize=912432 CPUtime=0.06
/proc/4754/stat : 4754 (java) D 4752 4754 4303 0 -1 0 2745 0 1 0 5 1 0 0 22 0 8 0 155310230 934330368 2491 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 2147483391 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/4754/statm: 228108 2491 1379 14 0 215091 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 912432

[startup+0.513177 s]
/proc/loadavg: 1.21 1.72 1.75 2/68 4755
/proc/meminfo: memFree=1670088/2055920 swapFree=4192812/4192956
[pid=4754] ppid=4752 vsize=915328 CPUtime=0.47
/proc/4754/stat : 4754 (java) S 4752 4754 4303 0 -1 0 6437 0 1 0 43 4 0 0 16 0 8 0 155310230 937295872 6176 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/4754/statm: 228832 6176 2181 14 0 215302 0
Current children cumulated CPU time (s) 0.47
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 0.729968
CPU time (s): 0.659899
CPU user time (s): 0.603908
CPU system time (s): 0.055991
CPU usage (%): 90.4011
Max. virtual memory (cumulated for all children) (KiB): 915452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.603908
system time used= 0.055991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8343
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= 455
involuntary context switches= 67

runsolver used 0.003999 s user time and 0.006998 s system time

The end

Launcher Data (download as text)

Begin job on node41 on Sat Jan  6 07:38:26 UTC 2007


IDJOB= 192026
IDBENCH= 3086
FILE ID= node41/192026-1168069103

PBS_JOBID= 3475896

Free space on /tmp= 66528 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-10.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/192026-1168069103/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-192026-1168069103 -o ROOT/results/node41/solver-192026-1168069103 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/192026-1168069103/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  3e6285fa23d2db6c237f185a8745044d

RANDOM SEED= 283515230

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		: 3000.234
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		: 3000.234
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:       1669576 kB
Buffers:         31492 kB
Cached:         256692 kB
SwapCached:          0 kB
Active:          57748 kB
Inactive:       252796 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1669576 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4868 kB
Writeback:           0 kB
Mapped:          35300 kB
Slab:            61296 kB
Committed_AS:  2445584 kB
PageTables:       1808 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= 66528 MiB



End job on node41 on Sat Jan  6 07:38:33 UTC 2007