Trace number 242900

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 ESACSAT 0.769882 0.863041

DiagnosticValue
CHECKS1764
NODES145

General information on the benchmark

Namedimacs/aim-50/
aim-50-3-4-sat-4_ext.xml
MD5SUMcd09149f62c1745a4886e8b13a2f80cb
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 benchmark0.019996
SatisfiableYES
(Un)Satisfiability was proved
Number of variables50
Number of constraints159
Maximum constraint arity3
Maximum domain size2
Number of constraints which are defined in extension159
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.34	   
0.34	Abscon 109 (November, 2006)
0.34	   
0.34	   configuration
0.34	     name=esac.xml
0.37	   
0.37	   instance
0.37	     name=/tmp/evaluation/242900-1168382935/unknown.xml
0.40	   
0.40	   domains being loaded...
0.41	   
0.41	   variables being loaded...
0.43	     nbVariables=50  nbDomainTypes=1  minDomainSize=2  maxDomainSize=2
0.43	       =>  wckTime=0.087  cpuTime=0.08  mem=6M951
0.43	   
0.43	   relations being loaded...
0.44	   
0.44	   constraints being loaded...
0.50	     nbConstraints=159  nbRelationTypes=17  nbExtensionStructures=17  nbSharedExtensionStructures=142
0.50	     nbConflictsStructures=17  nbSharedConflictsStructures=142  nbSharedBinaryRepresentations=2  maxDegree=12
0.50	     maxArity=3
0.50	       =>  wckTime=0.16  cpuTime=0.14  mem=7M943
0.54	   
0.54	   solver IterativeSystematicSolver being built... 
0.71	       =>  wckTime=0.368  cpuTime=0.29  mem=15M407
0.74	   
0.74	   preprocessing
0.74	     nbConstraintChecks=406  nbValidityChecks=202  nbPropagations=199  nbRevisions=477  nbUselessRevisions=356
0.74	     nbSingletonTests=67  nbEffectiveSingletonTests=0  nbESACBranches=9  nbRemovedValues=0  detectedInconsistency=no
0.74	       =>  wckTime=0.029  cpuTime=0.02  mem=15M407
0.76	   
0.76	   search
0.76	     run=0  nbConstraintChecks=234  nbValidityChecks=290  nbPropagations=281  nbRevisions=872  nbUselessRevisions=652
0.76	     nbAssignments=17  nbFailedAssignments=3  nbBacktracks=10  nbVisitedNodes=24  nbRestartNogoods=0  mapSize=4
0.76	     nbInferences=0  nbTooLargeKeys=0
0.76	       =>  wckTime=0.045  cpuTime=0.03  mem=16M415
0.77	   
0.77	   search
0.77	     run=1  nbConstraintChecks=493  nbValidityChecks=646  nbPropagations=649  nbRevisions=2244  nbUselessRevisions=1709
0.77	     nbAssignments=43  nbFailedAssignments=6  nbBacktracks=25  nbVisitedNodes=55  nbRestartNogoods=2  mapSize=8
0.77	     nbInferences=0  nbTooLargeKeys=0
0.77	       =>  wckTime=0.061  cpuTime=0.04  mem=16M415
0.79	   
0.79	   search
0.79	     run=2  nbConstraintChecks=859  nbValidityChecks=1119  nbPropagations=1128  nbRevisions=4122
0.79	     nbUselessRevisions=3135  nbAssignments=77  nbFailedAssignments=12  nbBacktracks=52  nbVisitedNodes=99
0.79	     nbRestartNogoods=3  mapSize=17  nbInferences=0  nbTooLargeKeys=0
0.79	       =>  wckTime=0.077  cpuTime=0.04  mem=16M415
0.80	   
0.80	   search
0.80	     run=3  nbConstraintChecks=1358  nbValidityChecks=1764  nbPropagations=1739  nbRevisions=6859
0.80	     nbUselessRevisions=5278  nbAssignments=145  nbFailedAssignments=15  nbBacktracks=67  nbVisitedNodes=173
0.80	     nbRestartNogoods=4  mapSize=22  nbInferences=0  nbTooLargeKeys=0
0.80	       =>  wckTime=0.087  cpuTime=0.05  mem=16M415
0.80	   
0.80	   global
0.80	     nbConstraintChecks=1764  nbValidityChecks=1966  nbPropagations=1938  nbRevisions=7336  nbUselessRevisions=5634
0.80	     nbRestartNogoods=4  solvingWckTime=0.089  solvingCpuTime=0.05  expiredTime=no  totalExploration=no
0.80	     nbFoundSolutions=1  globalCpuTime=0.39
0.80	       =>  wckTime=0.458  cpuTime=0.34  mem=16M415
0.80	   
0.80	s SATISFIABLE
0.80	v 0 0 1 1 1 1 0 0 1 1 0 0 0 1 1 0 1 0 1 0 0 0 1 0 1 0 0 1 0 1 0 1 1 1 0 1 0 0 1 0 0 0 1 0 0 0 0 1 0 1 
0.80	d NODES 145
0.80	d CHECKS 1764
0.80	   
0.80	   totalWckTime=0.534  totalCpuTime=0.4

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/node9/watcher-242900-1168382935 -o ROOT/results/node9/solver-242900-1168382935 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/242900-1168382935/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: 1.13 1.75 1.79 3/82 29533
/proc/meminfo: memFree=1748952/2055920 swapFree=4191880/4192956
[pid=29532] ppid=29530 vsize=1784 CPUtime=0
/proc/29532/stat : 29532 (java) D 29530 29532 29034 0 -1 0 169 0 0 0 0 0 0 0 20 0 1 0 186688756 1826816 140 18446744073709551615 134512640 134570532 4294956624 18446744073709551615 4294960144 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/29532/statm: 446 140 106 14 0 91 0

[startup+0.107933 s]
/proc/loadavg: 1.13 1.75 1.79 3/82 29533
/proc/meminfo: memFree=1748952/2055920 swapFree=4191880/4192956
[pid=29532] ppid=29530 vsize=907808 CPUtime=0.04
/proc/29532/stat : 29532 (java) R 29530 29532 29034 0 -1 0 2429 0 1 0 3 1 0 0 20 0 4 0 186688756 929595392 2176 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 7368 18446744073709551615 0 0 17 0 0 0
/proc/29532/statm: 226952 2176 1201 14 0 214535 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 907808

[startup+0.519985 s]
/proc/loadavg: 1.13 1.75 1.79 3/82 29533
/proc/meminfo: memFree=1748952/2055920 swapFree=4191880/4192956
[pid=29532] ppid=29530 vsize=915328 CPUtime=0.45
/proc/29532/stat : 29532 (java) S 29530 29532 29034 0 -1 0 6389 0 1 0 42 3 0 0 16 0 8 0 186688756 937295872 6128 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/29532/statm: 228832 6128 2159 14 0 215302 0
Current children cumulated CPU time (s) 0.45
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 0.863041
CPU time (s): 0.769882
CPU user time (s): 0.699893
CPU system time (s): 0.069989
CPU usage (%): 89.2057
Max. virtual memory (cumulated for all children) (KiB): 915460

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.699893
system time used= 0.069989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8941
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= 580
involuntary context switches= 144

runsolver used 0.003999 s user time and 0.006998 s system time

The end

Launcher Data (download as text)

Begin job on node9 on Tue Jan  9 22:48:56 UTC 2007


IDJOB= 242900
IDBENCH= 7427
FILE ID= node9/242900-1168382935

PBS_JOBID= 3522452

Free space on /tmp= 66547 MiB

BENCH NAME= HOME/pub/bench/CPAI06/dimacs/aim-50/aim-50-3-4-sat-4_ext.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/242900-1168382935/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-242900-1168382935 -o ROOT/results/node9/solver-242900-1168382935 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/242900-1168382935/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  cd09149f62c1745a4886e8b13a2f80cb

RANDOM SEED= 907783817

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		: 3000.231
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		: 3000.231
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:       1749432 kB
Buffers:         49392 kB
Cached:         163516 kB
SwapCached:        408 kB
Active:         169688 kB
Inactive:        90476 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1749432 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            1928 kB
Writeback:           0 kB
Mapped:          58832 kB
Slab:            31364 kB
Committed_AS:  6179828 kB
PageTables:       2168 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= 66547 MiB



End job on node9 on Tue Jan  9 22:48:59 UTC 2007