Trace number 221154

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 0.809876 0.869038

DiagnosticValue
CHECKS94189
NODES580

General information on the benchmark

NamequeenAttacking/
queenAttacking-4.xml
MD5SUMc5e138c65bd2b9ba1b0ba08337d6d93f
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 benchmark0.056991
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables17
Number of constraints126
Maximum constraint arity2
Maximum domain size16
Number of constraints which are defined in extension0
Number of constraints which are defined in intension126
Global constraints used (with number of constraints)

Solver Data (download as text)

0.30	   
0.30	Abscon 109 (November, 2006)
0.30	   
0.30	   configuration
0.30	     name=mac.xml
0.33	   
0.33	   instance
0.33	     name=/tmp/evaluation/221154-1168080005/unknown.xml
0.36	   
0.36	   domains being loaded...
0.36	   
0.36	   variables being loaded...
0.39	     nbVariables=17  nbDomainTypes=2  minDomainSize=3  maxDomainSize=16
0.39	       =>  wckTime=0.093  cpuTime=0.09  mem=6M902
0.39	   
0.40	   predicates being loaded...
0.40	   
0.40	   constraints being loaded...
0.50	     nbConstraints=126  nbConvertedConstraints=126  nbConvertConstraintsChecks=560  nbExtensionStructures=3
0.50	     nbSharedExtensionStructures=123  nbConflictsStructures=3  nbSharedConflictsStructures=123
0.50	     nbSharedBinaryRepresentations=42  maxDegree=16  maxArity=2
0.50	       =>  wckTime=0.199  cpuTime=0.17  mem=8M853
0.54	   
0.54	   solver IterativeSystematicSolver being built... 
0.68	       =>  wckTime=0.38  cpuTime=0.28  mem=13M500
0.69	   
0.69	   preprocessing
0.69	     nbConstraintChecks=96  nbPropagations=17  nbRevisions=6  nbUselessRevisions=0  nbRemovedValues=6
0.69	     detectedInconsistency=no
0.69	       =>  wckTime=0.0020  cpuTime=0.0  mem=13M500
0.72	   
0.72	   search
0.72	     run=0  nbConstraintChecks=3274  nbPropagations=202  nbRevisions=676  nbUselessRevisions=395  nbAssignments=21
0.72	     nbFailedAssignments=4  nbBacktracks=10  nbVisitedNodes=30  nbRestartNogoods=0  mapSize=6  nbInferences=0
0.72	     nbTooLargeKeys=0
0.72	       =>  wckTime=0.031  cpuTime=0.03  mem=13M500
0.73	   
0.73	   search
0.73	     run=1  nbConstraintChecks=6975  nbPropagations=594  nbRevisions=2024  nbUselessRevisions=1148  nbAssignments=45
0.73	     nbFailedAssignments=11  nbBacktracks=25  nbVisitedNodes=69  nbRestartNogoods=2  mapSize=17  nbInferences=1
0.73	     nbTooLargeKeys=0
0.73	       =>  wckTime=0.044  cpuTime=0.03  mem=13M500
0.74	   
0.74	   search
0.74	     run=2  nbConstraintChecks=12538  nbPropagations=1281  nbRevisions=4537  nbUselessRevisions=2559  nbAssignments=83
0.74	     nbFailedAssignments=23  nbBacktracks=47  nbVisitedNodes=129  nbRestartNogoods=4  mapSize=32  nbInferences=1
0.74	     nbTooLargeKeys=0
0.74	       =>  wckTime=0.056  cpuTime=0.04  mem=13M500
0.75	   
0.75	   search
0.75	     run=3  nbConstraintChecks=20017  nbPropagations=2349  nbRevisions=8803  nbUselessRevisions=4993  nbAssignments=137
0.75	     nbFailedAssignments=42  nbBacktracks=80  nbVisitedNodes=213  nbRestartNogoods=8  mapSize=52  nbInferences=1
0.75	     nbTooLargeKeys=0
0.75	       =>  wckTime=0.071  cpuTime=0.05  mem=13M500
0.77	   
0.77	   search
0.77	     run=4  nbConstraintChecks=34387  nbPropagations=4134  nbRevisions=16521  nbUselessRevisions=9461  nbAssignments=221
0.77	     nbFailedAssignments=74  nbBacktracks=130  nbVisitedNodes=354  nbRestartNogoods=12  mapSize=89  nbInferences=1
0.77	     nbTooLargeKeys=0
0.77	       =>  wckTime=0.087  cpuTime=0.06  mem=13M500
0.78	   
0.78	   search
0.78	     run=5  nbConstraintChecks=54844  nbPropagations=6920  nbRevisions=29408  nbUselessRevisions=17127
0.78	     nbAssignments=341  nbFailedAssignments=116  nbBacktracks=206  nbVisitedNodes=550  nbRestartNogoods=14  mapSize=141
0.78	     nbInferences=1  nbTooLargeKeys=0
0.78	       =>  wckTime=0.101  cpuTime=0.07  mem=13M500
0.81	   
0.81	   search
0.81	     run=6  nbConstraintChecks=81337  nbPropagations=11175  nbRevisions=49331  nbUselessRevisions=29221
0.81	     nbAssignments=524  nbFailedAssignments=181  nbBacktracks=319  nbVisitedNodes=847  nbRestartNogoods=17  mapSize=225
0.81	     nbInferences=3  nbTooLargeKeys=0
0.81	       =>  wckTime=0.123  cpuTime=0.09  mem=13M500
0.81	   
0.81	   search
0.81	     run=7  nbConstraintChecks=94093  nbPropagations=16009  nbRevisions=72080  nbUselessRevisions=42934
0.81	     nbAssignments=580  nbFailedAssignments=200  nbBacktracks=355  nbVisitedNodes=941  nbRestartNogoods=21  mapSize=249
0.81	     nbInferences=5  nbTooLargeKeys=0
0.81	       =>  wckTime=0.13  cpuTime=0.1  mem=13M500
0.81	   
0.81	   global
0.81	     nbConstraintChecks=94189  nbPropagations=16026  nbRevisions=72086  nbUselessRevisions=42934  nbRestartNogoods=21
0.81	     solvingWckTime=0.131  solvingCpuTime=0.1  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.81	     globalCpuTime=0.43
0.81	       =>  wckTime=0.512  cpuTime=0.38  mem=13M500
0.82	   
0.82	s UNSATISFIABLE
0.82	d NODES 580
0.82	d CHECKS 94189
0.82	   
0.82	   totalWckTime=0.588  totalCpuTime=0.43

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/node51/watcher-221154-1168080005 -o ROOT/results/node51/solver-221154-1168080005 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/221154-1168080005/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: 0.46 0.78 0.97 5/70 593
/proc/meminfo: memFree=1463096/2055920 swapFree=4192812/4192956
[pid=592] ppid=588 vsize=18540 CPUtime=0
/proc/592/stat : 592 (runsolver) R 588 592 360 0 -1 4194368 17 0 0 0 0 0 0 0 21 0 1 0 156399234 18984960 279 18446744073709551615 4194304 4267372 548682068960 18446744073709551615 235371293991 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/592/statm: 4635 279 244 17 0 2626 0

[startup+0.10725 s]
/proc/loadavg: 0.46 0.78 0.97 5/70 593
/proc/meminfo: memFree=1463096/2055920 swapFree=4192812/4192956
[pid=592] ppid=588 vsize=914988 CPUtime=0.08
/proc/592/stat : 592 (java) R 588 592 360 0 -1 0 3002 0 1 0 7 1 0 0 25 0 8 0 156399234 936947712 2748 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4072936507 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/592/statm: 228747 2748 1429 14 0 215242 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 914988

[startup+0.515324 s]
/proc/loadavg: 0.46 0.78 0.97 5/70 593
/proc/meminfo: memFree=1463096/2055920 swapFree=4192812/4192956
[pid=592] ppid=588 vsize=915460 CPUtime=0.49
/proc/592/stat : 592 (java) R 588 592 360 0 -1 0 6657 0 1 0 44 5 0 0 25 0 8 0 156399234 937431040 6395 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/592/statm: 228865 6395 2178 14 0 215335 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915460

Child status: 0
Real time (s): 0.869038
CPU time (s): 0.809876
CPU user time (s): 0.732888
CPU system time (s): 0.076988
CPU usage (%): 93.1922
Max. virtual memory (cumulated for all children) (KiB): 915460

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.732888
system time used= 0.076988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8412
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= 827
involuntary context switches= 938

runsolver used 0.005999 s user time and 0.005999 s system time

The end

Launcher Data (download as text)

Begin job on node51 on Sat Jan  6 10:40:07 UTC 2007


IDJOB= 221154
IDBENCH= 5398
FILE ID= node51/221154-1168080005

PBS_JOBID= 3476152

Free space on /tmp= 66545 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queenAttacking/queenAttacking-4.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/221154-1168080005/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node51/watcher-221154-1168080005 -o ROOT/results/node51/solver-221154-1168080005 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/221154-1168080005/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  c5e138c65bd2b9ba1b0ba08337d6d93f

RANDOM SEED= 154179174

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		: 3000.277
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		: 3000.277
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:       1463712 kB
Buffers:         32532 kB
Cached:         469852 kB
SwapCached:          0 kB
Active:          62608 kB
Inactive:       459940 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1463712 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3672 kB
Writeback:           0 kB
Mapped:          30300 kB
Slab:            55208 kB
Committed_AS:  3045268 kB
PageTables:       1640 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= 66545 MiB



End job on node51 on Sat Jan  6 10:40:09 UTC 2007