Trace number 192122

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 0.810875 5.34291

DiagnosticValue
CHECKS9463
NODES50

General information on the benchmark

Namequeens/
queens-20.xml
MD5SUM3edea7185eba3deacaa79c92c3049b58
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 benchmark0.023996
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables20
Number of constraints190
Maximum constraint arity2
Maximum domain size20
Number of constraints which are defined in extension0
Number of constraints which are defined in intension190
Global constraints used (with number of constraints)

Solver Data (download as text)

4.68	   
4.68	Abscon 109 (November, 2006)
4.68	   
4.68	   configuration
4.68	     name=mac.xml
4.80	   
4.80	   instance
4.80	     name=/tmp/evaluation/192122-1168701155/unknown.xml
4.83	   
4.83	   domains being loaded...
4.84	   
4.84	   variables being loaded...
4.89	     nbVariables=20  nbDomainTypes=1  minDomainSize=20  maxDomainSize=20
4.89	       =>  wckTime=0.18  cpuTime=0.07  mem=6M951
4.89	   
4.89	   predicates being loaded...
4.89	   
4.89	   constraints being loaded...
5.05	     nbConstraints=190  nbConvertedConstraints=190  nbConvertConstraintsChecks=7600  nbExtensionStructures=19
5.05	     nbSharedExtensionStructures=171  nbConflictsStructures=19  nbSharedConflictsStructures=171
5.05	     nbSharedBinaryRepresentations=519  maxDegree=19  maxArity=2
5.05	       =>  wckTime=0.343  cpuTime=0.18  mem=8M902
5.08	   
5.08	   solver IterativeSystematicSolver being built... 
5.23	       =>  wckTime=0.524  cpuTime=0.3  mem=13M514
5.24	   
5.24	   preprocessing
5.24	     nbConstraintChecks=0  nbPropagations=20  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
5.24	     detectedInconsistency=no
5.24	       =>  wckTime=0.0020  cpuTime=0.0  mem=13M514
5.27	   
5.27	   search
5.27	     run=0  nbConstraintChecks=6818  nbPropagations=356  nbRevisions=1466  nbUselessRevisions=911  nbAssignments=29
5.27	     nbFailedAssignments=10  nbBacktracks=10  nbVisitedNodes=48  nbRestartNogoods=0  mapSize=10  nbInferences=0
5.27	     nbTooLargeKeys=0
5.27	       =>  wckTime=0.037  cpuTime=0.02  mem=13M514
5.28	   
5.28	   search
5.28	     run=1  nbConstraintChecks=9463  nbPropagations=903  nbRevisions=3231  nbUselessRevisions=1936  nbAssignments=50
5.28	     nbFailedAssignments=11  nbBacktracks=10  nbVisitedNodes=70  nbRestartNogoods=3  mapSize=10  nbInferences=0
5.28	     nbTooLargeKeys=0
5.28	       =>  wckTime=0.047  cpuTime=0.04  mem=13M514
5.28	   
5.28	   global
5.28	     nbConstraintChecks=9463  nbPropagations=923  nbRevisions=3231  nbUselessRevisions=1936  nbRestartNogoods=3
5.28	     solvingWckTime=0.048  solvingCpuTime=0.04  expiredTime=no  totalExploration=no  nbFoundSolutions=1
5.28	     globalCpuTime=0.39
5.28	       =>  wckTime=0.575  cpuTime=0.34  mem=13M514
5.28	   
5.28	s SATISFIABLE
5.28	v 3 5 8 13 17 4 18 7 15 10 19 1 6 2 16 20 11 9 14 12 
5.28	d NODES 50
5.28	d CHECKS 9463
5.28	   
5.28	   totalWckTime=0.68  totalCpuTime=0.39

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/node66/watcher-192122-1168701155 -o ROOT/results/node66/solver-192122-1168701155 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/192122-1168701155/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: 0.35 0.08 0.03 5/74 8007
/proc/meminfo: memFree=1187016/2055920 swapFree=4192956/4192956
[pid=8006] ppid=8004 vsize=18540 CPUtime=0
/proc/8006/stat : 8006 (runsolver) R 8004 8006 7785 0 -1 4194368 17 0 0 0 0 0 0 0 19 0 1 0 17613226 18984960 279 18446744073709551615 4194304 4267372 548682068912 18446744073709551615 227607637287 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/8006/statm: 4635 279 244 17 0 2626 0

[startup+0.106477 s]
/proc/loadavg: 0.35 0.08 0.03 5/74 8007
/proc/meminfo: memFree=1187016/2055920 swapFree=4192956/4192956
[pid=8006] ppid=8004 vsize=9788 CPUtime=0
/proc/8006/stat : 8006 (java) D 8004 8006 7785 0 -1 0 394 0 2 0 0 0 0 0 18 0 1 0 17613226 10022912 183 18446744073709551615 134512640 134570532 4294956432 18446744073709551615 9809185 0 0 4096 0 18446744071563479169 0 0 17 0 0 0
/proc/8006/statm: 2447 183 144 14 0 1138 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9788

[startup+0.514504 s]
/proc/loadavg: 0.35 0.08 0.03 5/74 8007
/proc/meminfo: memFree=1187016/2055920 swapFree=4192956/4192956
[pid=8006] ppid=8004 vsize=11820 CPUtime=0
/proc/8006/stat : 8006 (java) D 8004 8006 7785 0 -1 0 736 0 24 0 0 0 0 0 18 0 1 0 17613226 12103680 509 18446744073709551615 134512640 134570532 4294956432 18446744073709551615 9839524 0 4 0 7368 18446744071563479169 0 0 17 0 0 0
/proc/8006/statm: 2955 509 420 14 0 1602 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 11820

[startup+1.33662 s]
/proc/loadavg: 0.35 0.08 0.03 2/74 8007
/proc/meminfo: memFree=1180424/2055920 swapFree=4192956/4192956
[pid=8006] ppid=8004 vsize=47976 CPUtime=0
/proc/8006/stat : 8006 (java) D 8004 8006 7785 0 -1 0 1179 0 40 0 0 0 0 0 18 0 1 0 17613226 49127424 967 18446744073709551615 134512640 134570532 4294956432 18446744073709551615 4151971088 0 4 0 7368 18446744071563479169 0 0 17 0 0 0
/proc/8006/statm: 11994 967 765 14 0 1707 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 47976

[startup+2.9738 s]
/proc/loadavg: 0.35 0.08 0.03 2/81 8014
/proc/meminfo: memFree=1173264/2055920 swapFree=4192956/4192956
[pid=8006] ppid=8004 vsize=914988 CPUtime=0.12
/proc/8006/stat : 8006 (java) D 8004 8006 7785 0 -1 0 3183 0 59 0 10 2 0 0 18 0 8 0 17613226 936947712 2986 18446744073709551615 134512640 134570532 4294956432 18446744073709551615 4151974723 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/8006/statm: 228747 2986 1518 14 0 215242 0
[pid=8006/tid=8008] ppid=8004 vsize=914988 CPUtime=0
/proc/8006/task/8008/stat : 8008 (java) S 8004 8006 7785 0 -1 64 8 0 0 0 0 0 0 0 17 0 8 0 17613394 936947712 2986 18446744073709551615 134512640 134570532 4294956432 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 0 0 0
[pid=8006/tid=8009] ppid=8004 vsize=914988 CPUtime=0
/proc/8006/task/8009/stat : 8009 (java) S 8004 8006 7785 0 -1 64 10 0 0 0 0 0 0 0 19 0 8 0 17613403 936947712 2986 18446744073709551615 134512640 134570532 4294956432 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=8006/tid=8010] ppid=8004 vsize=914988 CPUtime=0
/proc/8006/task/8010/stat : 8010 (java) S 8004 8006 7785 0 -1 64 4 0 0 0 0 0 0 0 20 0 8 0 17613403 936947712 2986 18446744073709551615 134512640 134570532 4294956432 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=8006/tid=8011] ppid=8004 vsize=914988 CPUtime=0
/proc/8006/task/8011/stat : 8011 (java) S 8004 8006 7785 0 -1 64 1 0 0 0 0 0 0 0 19 0 8 0 17613432 936947712 2986 18446744073709551615 134512640 134570532 4294956432 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=8006/tid=8012] ppid=8004 vsize=914988 CPUtime=0
/proc/8006/task/8012/stat : 8012 (java) S 8004 8006 7785 0 -1 64 252 0 0 0 0 0 0 0 16 0 8 0 17613432 936947712 2986 18446744073709551615 134512640 134570532 4294956432 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=8006/tid=8013] ppid=8004 vsize=914988 CPUtime=0
/proc/8006/task/8013/stat : 8013 (java) S 8004 8006 7785 0 -1 64 1 0 0 0 0 0 0 0 20 0 8 0 17613432 936947712 2986 18446744073709551615 134512640 134570532 4294956432 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=8006/tid=8014] ppid=8004 vsize=914988 CPUtime=0
/proc/8006/task/8014/stat : 8014 (java) S 8004 8006 7785 0 -1 64 0 0 0 0 0 0 0 0 15 0 8 0 17613432 936947712 2986 18446744073709551615 134512640 134570532 4294956432 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 0.12
Current children cumulated vsize (KiB) 914988

Child status: 0
Real time (s): 5.34291
CPU time (s): 0.810875
CPU user time (s): 0.703892
CPU system time (s): 0.106983
CPU usage (%): 15.1766
Max. virtual memory (cumulated for all children) (KiB): 915464

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.703892
system time used= 0.106983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8322
page faults= 89
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 1010
involuntary context switches= 926

runsolver used 0.009998 s user time and 0.021996 s system time

The end

Launcher Data (download as text)

Begin job on node66 on Sat Jan 13 15:12:38 UTC 2007


IDJOB= 192122
IDBENCH= 3092
IDSOLVER= 75
FILE ID= node66/192122-1168701155

PBS_JOBID= 3547155

Free space on /tmp= 66560 MiB

SOLVER NAME= abscon  109 AC
BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-20.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/192122-1168701155/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node66/watcher-192122-1168701155 -o ROOT/results/node66/solver-192122-1168701155 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/192122-1168701155/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  3edea7185eba3deacaa79c92c3049b58

RANDOM SEED= 132548138

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		: 3000.230
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		: 3000.230
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:       1187560 kB
Buffers:         50852 kB
Cached:         722376 kB
SwapCached:          0 kB
Active:         333020 kB
Inactive:       462588 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1187560 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            4964 kB
Writeback:           0 kB
Mapped:          33736 kB
Slab:            58236 kB
Committed_AS:   239840 kB
PageTables:       1724 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= 66560 MiB



End job on node66 on Sat Jan 13 15:12:48 UTC 2007