Trace number 242025

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 0.938856 1.02791

DiagnosticValue
CHECKS3996
NODES209

General information on the benchmark

Namedimacs/jnhSat/
jnh218_ext.xml
MD5SUM7819f900e99016ed2d2474318e86794a
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.072988
SatisfiableYES
(Un)Satisfiability was proved
Number of variables100
Number of constraints797
Maximum constraint arity11
Maximum domain size2
Number of constraints which are defined in extension797
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.31	   
0.32	Abscon 109 (November, 2006)
0.32	   
0.32	   configuration
0.32	     name=mac.xml
0.34	   
0.34	   instance
0.34	     name=/tmp/evaluation/242025-1168085446/unknown.xml
0.37	   
0.37	   domains being loaded...
0.38	   
0.38	   variables being loaded...
0.41	     nbVariables=100  nbDomainTypes=1  minDomainSize=2  maxDomainSize=2
0.41	       =>  wckTime=0.09  cpuTime=0.08  mem=6M951
0.41	   
0.41	   relations being loaded...
0.45	   
0.45	   constraints being loaded...
0.61	     nbConstraints=797  nbRelationTypes=221  nbExtensionStructures=221  nbSharedExtensionStructures=576
0.61	     nbConflictsStructures=221  nbSharedConflictsStructures=576  nbSharedBinaryRepresentations=16  maxDegree=58
0.61	     maxArity=11
0.61	       =>  wckTime=0.294  cpuTime=0.19  mem=10M852
0.65	   
0.65	   solver IterativeSystematicSolver being built... 
0.85	       =>  wckTime=0.534  cpuTime=0.36  mem=22M62
0.87	   
0.87	   preprocessing
0.87	     nbConstraintChecks=40  nbPropagations=111  nbRevisions=24  nbUselessRevisions=13  nbRemovedValues=11
0.87	     detectedInconsistency=no
0.87	       =>  wckTime=0.014  cpuTime=0.01  mem=22M62
0.92	   
0.92	   search
0.92	     run=0  nbConstraintChecks=1163  nbValidityChecks=526  nbPropagations=237  nbRevisions=1710  nbUselessRevisions=1562
0.92	     nbAssignments=44  nbFailedAssignments=2  nbBacktracks=18  nbVisitedNodes=49  nbRestartNogoods=0  mapSize=3
0.92	     nbInferences=0  nbTooLargeKeys=0
0.92	       =>  wckTime=0.071  cpuTime=0.03  mem=22M62
0.95	   
0.95	   search
0.95	     run=1  nbConstraintChecks=1901  nbValidityChecks=1227  nbPropagations=622  nbRevisions=4454
0.95	     nbUselessRevisions=3979  nbAssignments=91  nbFailedAssignments=6  nbBacktracks=45  nbVisitedNodes=104
0.95	     nbRestartNogoods=1  mapSize=10  nbInferences=0  nbTooLargeKeys=0
0.95	       =>  wckTime=0.095  cpuTime=0.05  mem=22M62
0.98	   
0.98	   search
0.98	     run=2  nbConstraintChecks=3956  nbValidityChecks=2534  nbPropagations=1179  nbRevisions=9200
0.98	     nbUselessRevisions=8245  nbAssignments=209  nbFailedAssignments=9  nbBacktracks=60  nbVisitedNodes=226
0.98	     nbRestartNogoods=2  mapSize=11  nbInferences=0  nbTooLargeKeys=0
0.98	       =>  wckTime=0.126  cpuTime=0.08  mem=22M62
0.98	   
0.98	   global
0.98	     nbConstraintChecks=3996  nbValidityChecks=2534  nbPropagations=1290  nbRevisions=9224  nbUselessRevisions=8258
0.98	     nbRestartNogoods=2  solvingWckTime=0.127  solvingCpuTime=0.08  expiredTime=no  totalExploration=no
0.98	     nbFoundSolutions=1  globalCpuTime=0.49
0.98	       =>  wckTime=0.662  cpuTime=0.45  mem=22M62
0.98	   
0.98	s SATISFIABLE
0.98	v 1 1 1 0 0 1 0 1 0 0 1 0 0 0 0 0 1 0 0 1 1 0 0 0 0 1 1 1 1 1 0 0 1 0 1 0 0 1 1 1 0 1 0 1 1 1 1 1 1 0 0 1 1 0 1 1 1 0 1 1 1 0 1 0 1 1 0 1 1 1 1 0 1 1 1 0 1 1 1 1 0 1 1 1 0 0 1 1 1 0 1 1 1 1 0 1 1 1 0 1 
0.98	d NODES 209
0.98	d CHECKS 3996
0.98	   
0.98	   totalWckTime=0.736  totalCpuTime=0.5

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/node40/watcher-242025-1168085446 -o ROOT/results/node40/solver-242025-1168085446 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/242025-1168085446/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: 0.20 1.13 1.58 3/68 28596
/proc/meminfo: memFree=1738944/2055920 swapFree=4192812/4192956
[pid=28595] ppid=28593 vsize=284 CPUtime=0
/proc/28595/stat : 28595 (java) R 28593 28595 27571 0 -1 0 47 0 0 0 0 0 0 0 20 0 1 0 156945416 290816 31 18446744073709551615 134512640 134570532 4294956624 18446744073709551615 6912653 0 0 4096 0 0 0 0 17 1 0 0
/proc/28595/statm: 73 35 27 14 0 5 0

[startup+0.105635 s]
/proc/loadavg: 0.20 1.13 1.58 3/68 28596
/proc/meminfo: memFree=1738944/2055920 swapFree=4192812/4192956
[pid=28595] ppid=28593 vsize=913068 CPUtime=0.08
/proc/28595/stat : 28595 (java) R 28593 28595 27571 0 -1 0 2847 0 1 0 7 1 0 0 22 0 8 0 156945416 934981632 2593 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/28595/statm: 228267 2595 1395 14 0 215168 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 913068

[startup+0.51369 s]
/proc/loadavg: 0.20 1.13 1.58 3/68 28596
/proc/meminfo: memFree=1738944/2055920 swapFree=4192812/4192956
[pid=28595] ppid=28593 vsize=915328 CPUtime=0.44
/proc/28595/stat : 28595 (java) R 28593 28595 27571 0 -1 0 6353 0 1 0 41 3 0 0 17 0 8 0 156945416 937295872 6092 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4073634875 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/28595/statm: 228832 6092 2137 14 0 215302 0
Current children cumulated CPU time (s) 0.44
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 1.02791
CPU time (s): 0.938856
CPU user time (s): 0.871867
CPU system time (s): 0.066989
CPU usage (%): 91.3361
Max. virtual memory (cumulated for all children) (KiB): 915552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.871867
system time used= 0.066989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10567
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= 789
involuntary context switches= 33

runsolver used 0.002999 s user time and 0.005999 s system time

The end

Launcher Data (download as text)

Begin job on node40 on Sat Jan  6 12:10:51 UTC 2007


IDJOB= 242025
IDBENCH= 7361
FILE ID= node40/242025-1168085446

PBS_JOBID= 3476199

Free space on /tmp= 66545 MiB

BENCH NAME= HOME/pub/bench/CPAI06/dimacs/jnhSat/jnh218_ext.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/242025-1168085446/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-242025-1168085446 -o ROOT/results/node40/solver-242025-1168085446 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/242025-1168085446/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  7819f900e99016ed2d2474318e86794a

RANDOM SEED= 771395649

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		: 3000.239
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		: 3000.239
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:       1739552 kB
Buffers:         23072 kB
Cached:         201668 kB
SwapCached:          0 kB
Active:          67456 kB
Inactive:       178840 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1739552 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1840 kB
Writeback:           0 kB
Mapped:          31788 kB
Slab:            55796 kB
Committed_AS:  2971920 kB
PageTables:       1624 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 node40 on Sat Jan  6 12:11:12 UTC 2007