Trace number 242978

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 0.779881 0.822691

DiagnosticValue
CHECKS1280
NODES92

General information on the benchmark

Namedimacs/aim-50/
aim-50-3-4-sat-1_ext.xml
MD5SUM39a0cf91e01f4be18ef8c6f7fb3673f6
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 benchmark0.018996
SatisfiableYES
(Un)Satisfiability was proved
Number of variables50
Number of constraints156
Maximum constraint arity3
Maximum domain size2
Number of constraints which are defined in extension156
Number of constraints which are defined in intension0
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=esac.xml
0.34	   
0.34	   instance
0.34	     name=/tmp/evaluation/242978-1168383047/unknown.xml
0.37	   
0.37	   domains being loaded...
0.37	   
0.37	   variables being loaded...
0.40	     nbVariables=50  nbDomainTypes=1  minDomainSize=2  maxDomainSize=2
0.40	       =>  wckTime=0.091  cpuTime=0.09  mem=6M951
0.40	   
0.40	   relations being loaded...
0.41	   
0.41	   constraints being loaded...
0.48	     nbConstraints=156  nbRelationTypes=17  nbExtensionStructures=17  nbSharedExtensionStructures=139
0.48	     nbConflictsStructures=17  nbSharedConflictsStructures=139  nbSharedBinaryRepresentations=0  maxDegree=10
0.48	     maxArity=3
0.48	       =>  wckTime=0.166  cpuTime=0.14  mem=7M943
0.51	   
0.51	   solver IterativeSystematicSolver being built... 
0.69	       =>  wckTime=0.381  cpuTime=0.29  mem=15M382
0.72	   
0.72	   preprocessing
0.72	     nbConstraintChecks=427  nbValidityChecks=263  nbPropagations=198  nbRevisions=551  nbUselessRevisions=429
0.72	     nbSingletonTests=60  nbEffectiveSingletonTests=0  nbESACBranches=7  nbRemovedValues=0  detectedInconsistency=no
0.72	       =>  wckTime=0.032  cpuTime=0.02  mem=15M382
0.74	   
0.74	   search
0.74	     run=0  nbConstraintChecks=309  nbValidityChecks=369  nbPropagations=292  nbRevisions=987  nbUselessRevisions=736
0.74	     nbAssignments=18  nbFailedAssignments=5  nbBacktracks=12  nbVisitedNodes=29  nbRestartNogoods=0  mapSize=9
0.74	     nbInferences=0  nbTooLargeKeys=0
0.74	       =>  wckTime=0.048  cpuTime=0.04  mem=16M390
0.75	   
0.75	   search
0.75	     run=1  nbConstraintChecks=469  nbValidityChecks=588  nbPropagations=640  nbRevisions=2214  nbUselessRevisions=1651
0.75	     nbAssignments=40  nbFailedAssignments=7  nbBacktracks=32  nbVisitedNodes=57  nbRestartNogoods=1  mapSize=14
0.75	     nbInferences=0  nbTooLargeKeys=0
0.75	       =>  wckTime=0.061  cpuTime=0.04  mem=16M390
0.77	   
0.77	   search
0.77	     run=2  nbConstraintChecks=853  nbValidityChecks=877  nbPropagations=1052  nbRevisions=3861  nbUselessRevisions=2920
0.77	     nbAssignments=92  nbFailedAssignments=9  nbBacktracks=32  nbVisitedNodes=111  nbRestartNogoods=1  mapSize=14
0.77	     nbInferences=0  nbTooLargeKeys=0
0.77	       =>  wckTime=0.079  cpuTime=0.05  mem=16M390
0.77	   
0.77	   global
0.77	     nbConstraintChecks=1280  nbValidityChecks=1140  nbPropagations=1250  nbRevisions=4412  nbUselessRevisions=3349
0.77	     nbRestartNogoods=1  solvingWckTime=0.081  solvingCpuTime=0.05  expiredTime=no  totalExploration=no
0.77	     nbFoundSolutions=1  globalCpuTime=0.39
0.77	       =>  wckTime=0.463  cpuTime=0.34  mem=16M390
0.77	   
0.77	s SATISFIABLE
0.77	v 0 1 0 0 0 0 0 1 1 0 1 0 0 0 1 1 1 1 0 1 1 1 1 1 1 1 1 0 0 0 1 0 0 1 1 1 0 0 1 1 0 1 0 1 1 1 1 1 0 0 
0.77	d NODES 92
0.77	d CHECKS 1280
0.77	   
0.77	   totalWckTime=0.543  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/node9/watcher-242978-1168383047 -o ROOT/results/node9/solver-242978-1168383047 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/242978-1168383047/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: 0.26 1.25 1.60 4/87 31564
/proc/meminfo: memFree=1743416/2055920 swapFree=4191880/4192956
[pid=31563] ppid=31561 vsize=11820 CPUtime=0
/proc/31563/stat : 31563 (java) R 31561 31563 31008 0 -1 0 757 0 1 0 0 0 0 0 16 0 1 0 186699933 12103680 507 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 7368 0 0 0 17 1 0 0
/proc/31563/statm: 2955 510 421 14 0 1602 0

[startup+0.103245 s]
/proc/loadavg: 0.26 1.25 1.60 4/87 31564
/proc/meminfo: memFree=1743416/2055920 swapFree=4191880/4192956
[pid=31563] ppid=31561 vsize=914988 CPUtime=0.09
/proc/31563/stat : 31563 (java) R 31561 31563 31008 0 -1 0 3020 0 1 0 7 2 0 0 17 0 8 0 186699933 936947712 2766 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4153893853 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/31563/statm: 228747 2766 1435 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.511292 s]
/proc/loadavg: 0.26 1.25 1.60 4/87 31564
/proc/meminfo: memFree=1743416/2055920 swapFree=4191880/4192956
[pid=31563] ppid=31561 vsize=915328 CPUtime=0.5
/proc/31563/stat : 31563 (java) R 31561 31563 31008 0 -1 0 6508 0 1 0 45 5 0 0 17 0 8 0 186699933 937295872 6246 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4153795002 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/31563/statm: 228832 6246 2163 14 0 215302 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 0.822691
CPU time (s): 0.779881
CPU user time (s): 0.696894
CPU system time (s): 0.082987
CPU usage (%): 94.7963
Max. virtual memory (cumulated for all children) (KiB): 915464

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.696894
system time used= 0.082987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8930
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= 608
involuntary context switches= 625

runsolver used 0.003999 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node9 on Tue Jan  9 22:50:48 UTC 2007


IDJOB= 242978
IDBENCH= 7433
FILE ID= node9/242978-1168383047

PBS_JOBID= 3522464

Free space on /tmp= 66544 MiB

BENCH NAME= HOME/pub/bench/CPAI06/dimacs/aim-50/aim-50-3-4-sat-1_ext.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/242978-1168383047/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-242978-1168383047 -o ROOT/results/node9/solver-242978-1168383047 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/242978-1168383047/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  39a0cf91e01f4be18ef8c6f7fb3673f6

RANDOM SEED= 908989060

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:       1744216 kB
Buffers:         49604 kB
Cached:         167316 kB
SwapCached:        408 kB
Active:         174028 kB
Inactive:        90916 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1744216 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            5112 kB
Writeback:           0 kB
Mapped:          60404 kB
Slab:            31420 kB
Committed_AS:  6255352 kB
PageTables:       2324 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= 66544 MiB



End job on node9 on Tue Jan  9 22:50:50 UTC 2007