Trace number 200562

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 ACUNSAT 1.08083 1.13598

DiagnosticValue
CHECKS548439
NODES5385

General information on the benchmark

NamequeensKnights/
queensKnights-10-5-add.xml
MD5SUM4e0c486a909311b63b83c4f87ae0d156
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.12598
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables15
Number of constraints55
Maximum constraint arity2
Maximum domain size100
Number of constraints which are defined in extension0
Number of constraints which are defined in intension55
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=mac.xml
0.35	   
0.35	   instance
0.35	     name=/tmp/evaluation/200562-1168072174/unknown.xml
0.38	   
0.38	   domains being loaded...
0.38	   
0.38	   variables being loaded...
0.41	     nbVariables=15  nbDomainTypes=2  minDomainSize=10  maxDomainSize=100
0.42	       =>  wckTime=0.103  cpuTime=0.08  mem=6M951
0.42	   
0.42	   predicates being loaded...
0.42	   
0.42	   constraints being loaded...
0.53	     nbConstraints=55  nbConvertedConstraints=55  nbConvertConstraintsChecks=20900  nbExtensionStructures=11
0.53	     nbSharedExtensionStructures=44  nbConflictsStructures=11  nbSharedConflictsStructures=44
0.53	     nbSharedBinaryRepresentations=319  maxDegree=9  maxArity=2
0.53	       =>  wckTime=0.219  cpuTime=0.17  mem=7M927
0.56	   
0.56	   solver IterativeSystematicSolver being built... 
0.72	       =>  wckTime=0.408  cpuTime=0.3  mem=13M486
0.72	   
0.72	   preprocessing
0.72	     nbConstraintChecks=0  nbPropagations=15  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
0.72	     detectedInconsistency=no
0.72	       =>  wckTime=0.0010  cpuTime=0.01  mem=13M486
0.79	   
0.79	   search
0.79	     run=0  nbConstraintChecks=168970  nbPropagations=1050  nbRevisions=2189  nbUselessRevisions=842  nbAssignments=167
0.79	     nbFailedAssignments=153  nbBacktracks=11  nbVisitedNodes=327  nbRestartNogoods=0  mapSize=7  nbInferences=0
0.79	     nbTooLargeKeys=0
0.79	       =>  wckTime=0.069  cpuTime=0.05  mem=13M486
0.80	   
0.80	   search
0.80	     run=1  nbConstraintChecks=171767  nbPropagations=2369  nbRevisions=5349  nbUselessRevisions=2276  nbAssignments=203
0.80	     nbFailedAssignments=167  nbBacktracks=27  nbVisitedNodes=391  nbRestartNogoods=4  mapSize=22  nbInferences=4
0.80	     nbTooLargeKeys=0
0.80	       =>  wckTime=0.081  cpuTime=0.06  mem=13M486
0.81	   
0.81	   search
0.81	     run=2  nbConstraintChecks=175475  nbPropagations=4015  nbRevisions=9799  nbUselessRevisions=4519  nbAssignments=248
0.81	     nbFailedAssignments=185  nbBacktracks=51  nbVisitedNodes=472  nbRestartNogoods=8  mapSize=45  nbInferences=6
0.81	     nbTooLargeKeys=0
0.81	       =>  wckTime=0.092  cpuTime=0.06  mem=13M486
0.82	   
0.82	   search
0.82	     run=3  nbConstraintChecks=181473  nbPropagations=6190  nbRevisions=16394  nbUselessRevisions=8130
0.82	     nbAssignments=322  nbFailedAssignments=217  nbBacktracks=84  nbVisitedNodes=605  nbRestartNogoods=9  mapSize=76
0.82	     nbInferences=13  nbTooLargeKeys=0
0.82	       =>  wckTime=0.099  cpuTime=0.07  mem=13M486
0.83	   
0.83	   search
0.83	     run=4  nbConstraintChecks=188415  nbPropagations=9029  nbRevisions=25482  nbUselessRevisions=13298
0.83	     nbAssignments=422  nbFailedAssignments=251  nbBacktracks=135  nbVisitedNodes=778  nbRestartNogoods=14  mapSize=118
0.83	     nbInferences=26  nbTooLargeKeys=0
0.83	       =>  wckTime=0.111  cpuTime=0.08  mem=13M486
0.85	   
0.85	   search
0.85	     run=5  nbConstraintChecks=198811  nbPropagations=12824  nbRevisions=38232  nbUselessRevisions=20790
0.85	     nbAssignments=564  nbFailedAssignments=296  nbBacktracks=210  nbVisitedNodes=1025  nbRestartNogoods=19  mapSize=184
0.85	     nbInferences=44  nbTooLargeKeys=0
0.85	       =>  wckTime=0.125  cpuTime=0.09  mem=13M486
0.86	   
0.86	   search
0.86	     run=6  nbConstraintChecks=215340  nbPropagations=18225  nbRevisions=56884  nbUselessRevisions=32019
0.86	     nbAssignments=797  nbFailedAssignments=375  nbBacktracks=324  nbVisitedNodes=1432  nbRestartNogoods=24  mapSize=292
0.86	     nbInferences=82  nbTooLargeKeys=0
0.86	       =>  wckTime=0.143  cpuTime=0.1  mem=13M486
0.89	   
0.89	   search
0.89	     run=7  nbConstraintChecks=234052  nbPropagations=25530  nbRevisions=82322  nbUselessRevisions=47530
0.89	     nbAssignments=1124  nbFailedAssignments=474  nbBacktracks=494  nbVisitedNodes=1982  nbRestartNogoods=30
0.89	     mapSize=438  nbInferences=138  nbTooLargeKeys=0
0.89	       =>  wckTime=0.165  cpuTime=0.12  mem=13M486
0.93	   
0.93	   search
0.93	     run=8  nbConstraintChecks=270876  nbPropagations=36196  nbRevisions=120592  nbUselessRevisions=71171
0.93	     nbAssignments=1622  nbFailedAssignments=645  nbBacktracks=751  nbVisitedNodes=2854  nbRestartNogoods=35
0.93	     mapSize=673  nbInferences=204  nbTooLargeKeys=0
0.93	       =>  wckTime=0.207  cpuTime=0.14  mem=13M486
0.97	   
0.97	   search
0.97	     run=9  nbConstraintChecks=325609  nbPropagations=51955  nbRevisions=178472  nbUselessRevisions=107534
0.97	     nbAssignments=2373  nbFailedAssignments=897  nbBacktracks=1136  nbVisitedNodes=4156  nbRestartNogoods=42
0.97	     mapSize=1025  nbInferences=315  nbTooLargeKeys=0
0.97	       =>  wckTime=0.245  cpuTime=0.17  mem=13M486
1.02	   
1.02	   search
1.02	     run=10  nbConstraintChecks=410125  nbPropagations=75480  nbRevisions=266247  nbUselessRevisions=163183
1.02	     nbAssignments=3518  nbFailedAssignments=1304  nbBacktracks=1715  nbVisitedNodes=6166  nbRestartNogoods=47
1.02	     mapSize=1573  nbInferences=473  nbTooLargeKeys=0
1.02	       =>  wckTime=0.295  cpuTime=0.21  mem=13M486
1.07	   
1.07	   search
1.07	     run=11  nbConstraintChecks=531848  nbPropagations=110068  nbRevisions=397406  nbUselessRevisions=247048
1.07	     nbAssignments=5172  nbFailedAssignments=1866  nbBacktracks=2581  nbVisitedNodes=9054  nbRestartNogoods=49
1.07	     mapSize=2370  nbInferences=696  nbTooLargeKeys=0
1.07	       =>  wckTime=0.35  cpuTime=0.27  mem=14M461
1.08	   
1.08	   search
1.08	     run=12  nbConstraintChecks=548439  nbPropagations=146175  nbRevisions=534473  nbUselessRevisions=334717
1.08	     nbAssignments=5385  nbFailedAssignments=1948  nbBacktracks=2687  nbVisitedNodes=9436  nbRestartNogoods=54
1.08	     mapSize=2473  nbInferences=722  nbTooLargeKeys=0
1.08	       =>  wckTime=0.358  cpuTime=0.27  mem=14M461
1.08	   
1.08	   global
1.08	     nbConstraintChecks=548439  nbPropagations=146190  nbRevisions=534473  nbUselessRevisions=334717
1.08	     nbRestartNogoods=54  solvingWckTime=0.359  solvingCpuTime=0.28  expiredTime=no  totalExploration=yes
1.08	     nbFoundSolutions=0  globalCpuTime=0.63
1.08	       =>  wckTime=0.77  cpuTime=0.58  mem=14M461
1.08	   
1.08	s UNSATISFIABLE
1.08	d NODES 5385
1.08	d CHECKS 548439
1.08	   
1.08	   totalWckTime=0.852  totalCpuTime=0.63

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node52/watcher-200562-1168072174 -o ROOT/results/node52/solver-200562-1168072174 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/200562-1168072174/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: 1.86 1.97 1.90 4/80 27852
/proc/meminfo: memFree=1429064/2055920 swapFree=4192812/4192956
[pid=27851] ppid=27849 vsize=47416 CPUtime=0
/proc/27851/stat : 27851 (java) D 27849 27851 27175 0 -1 0 1211 0 1 0 0 0 0 0 17 0 1 0 155615941 48553984 960 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 2147483391 0 7368 18446744072099781622 0 0 17 1 0 0
/proc/27851/statm: 11854 960 760 14 0 1707 0

[startup+0.103233 s]
/proc/loadavg: 1.86 1.97 1.90 4/80 27852
/proc/meminfo: memFree=1429064/2055920 swapFree=4192812/4192956
[pid=27851] ppid=27849 vsize=914988 CPUtime=0.09
/proc/27851/stat : 27851 (java) S 27849 27851 27175 0 -1 0 2998 0 1 0 8 1 0 0 19 0 8 0 155615941 936947712 2744 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/27851/statm: 228747 2744 1427 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.515261 s]
/proc/loadavg: 1.86 1.97 1.90 4/80 27852
/proc/meminfo: memFree=1429064/2055920 swapFree=4192812/4192956
[pid=27851] ppid=27849 vsize=915328 CPUtime=0.49
/proc/27851/stat : 27851 (java) R 27849 27851 27175 0 -1 0 6482 0 1 0 45 4 0 0 18 0 8 0 155615941 937295872 6221 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4072926881 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/27851/statm: 228832 6221 2166 14 0 215302 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 1.13598
CPU time (s): 1.08083
CPU user time (s): 1.00485
CPU system time (s): 0.075988
CPU usage (%): 95.1453
Max. virtual memory (cumulated for all children) (KiB): 915452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.00485
system time used= 0.075988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8490
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= 1036
involuntary context switches= 1239

runsolver used 0.003999 s user time and 0.009998 s system time

The end

Launcher Data (download as text)

Begin job on node52 on Sat Jan  6 08:29:35 UTC 2007


IDJOB= 200562
IDBENCH= 3715
FILE ID= node52/200562-1168072174

PBS_JOBID= 3475911

Free space on /tmp= 66550 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queensKnights/queensKnights-10-5-add.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/200562-1168072174/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node52/watcher-200562-1168072174 -o ROOT/results/node52/solver-200562-1168072174 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/200562-1168072174/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  4e0c486a909311b63b83c4f87ae0d156

RANDOM SEED= 363542036

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		: 3000.232
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		: 3000.232
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:       1429544 kB
Buffers:         35952 kB
Cached:         432024 kB
SwapCached:          0 kB
Active:         119128 kB
Inactive:       430124 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1429544 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4128 kB
Writeback:           0 kB
Mapped:         101468 kB
Slab:            62260 kB
Committed_AS:  3941276 kB
PageTables:       2044 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= 66550 MiB



End job on node52 on Sat Jan  6 08:29:36 UTC 2007