Trace number 1084014

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 112v4 ESACUNSAT 0.681895 0.783886

DiagnosticValue
CHECKS8
NODES0

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-11.xml
MD5SUMd024b00d7492160e14e33ed9f6aa64a5
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 benchmark0.005998
Satisfiable
(Un)Satisfiability was proved
Number of variables8
Number of constraints22
Maximum constraint arity2
Maximum domain size4
Number of constraints which are defined in extension0
Number of constraints which are defined in intension22
Global constraints used (with number of constraints)

Solver Data (download as text)

0.06/0.08	
0.06/0.08	Abscon 112 (May, 2008)
0.16/0.27	
0.16/0.27	   configuration
0.16/0.27	     name=esac.xml
0.26/0.33	   
0.26/0.33	   instance
0.26/0.33	     name=HOME/instance-1084014-1215229629.xml
0.26/0.36	   
0.26/0.36	   domains being loaded...
0.26/0.37	   
0.26/0.37	   variables being loaded...
0.26/0.39	     nbVariables=8  nbDomainTypes=1  minDomainSize=4  maxDomainSize=4  nbTotalValues=32
0.26/0.39	       =>  wckTime=0.123  cpuTime=0.09  mem=7M919
0.26/0.39	   
0.26/0.39	   predicates being loaded...
0.34/0.45	   
0.34/0.45	   constraints being loaded...
0.44/0.53	     nbConstraints=24  nbGlobalConstraints=2  nbConvertedConstraints=22  nbConvertConstraintsChecks=80
0.44/0.53	     nbExtensionStructures=5  nbSharedExtensionStructures=17  nbConflictsStructures=5  nbSharedConflictsStructures=17
0.44/0.53	     nbSharedBinaryRepresentations=21  minDegree=5  maxDegree=9  minArity=2  avgArity=2.38  maxArity=8  nbGenerators=1
0.44/0.53	     nbFusions=1  symmetryWckTime=0.035  symmetryCpuTime=0.02  nbCliques=1
0.44/0.53	       =>  wckTime=0.265  cpuTime=0.2  mem=13M819
0.44/0.59	   
0.44/0.59	   solver IterativeSystematicSolver being built... 
0.53/0.66	   
0.53/0.66	   INFO : Forward propagation technique limited 
0.63/0.72	       =>  wckTime=0.45  cpuTime=0.31  mem=19M530
0.63/0.72	   
0.63/0.72	   preprocessing
0.63/0.72	     nbConstraintChecks=8  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRemovedValues=2  nbRemovedTuples=5
0.63/0.72	     detectedInconsistency=yes
0.63/0.72	       =>  wckTime=0.0020  cpuTime=0.0  mem=19M530
0.63/0.73	   
0.63/0.73	   global
0.63/0.73	     nbConstraintChecks=8  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRestartNogoods=0
0.63/0.73	     solvingWckTime=0.0050  solvingCpuTime=0.0  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.63/0.73	     globalCpuTime=0.35
0.63/0.73	       =>  wckTime=0.457  cpuTime=0.31  mem=20M538
0.63/0.73	   
0.63/0.73	s UNSATISFIABLE
0.63/0.73	d NODES 0
0.63/0.73	d CHECKS 8
0.63/0.73	   
0.63/0.73	   totalWckTime=0.524  totalCpuTime=0.36

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084014-1215229629/watcher-1084014-1215229629 -o /tmp/evaluation-result-1084014-1215229629/solver-1084014-1215229629 -C 1800 -W 2200 -M 900 --output-limit 1,15 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-1084014-1215229629.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.86 1.97 1.99 4/73 24211
/proc/meminfo: memFree=1809664/2055920 swapFree=4181000/4192956
[pid=24211] ppid=24209 vsize=152 CPUtime=0
/proc/24211/stat : 24211 (java) R 24209 24211 20533 0 -1 0 205 0 0 0 0 0 0 0 20 0 1 0 263905612 155648 26 996147200 134512640 134550740 4294955968 18446744073709551615 2601764 0 0 4096 0 0 0 0 17 0 0 0
/proc/24211/statm: 38 26 19 9 0 4 0

[startup+0.075475 s]
/proc/loadavg: 1.86 1.97 1.99 4/73 24211
/proc/meminfo: memFree=1809664/2055920 swapFree=4181000/4192956
[pid=24211] ppid=24209 vsize=865856 CPUtime=0.06
/proc/24211/stat : 24211 (java) S 24209 24211 20533 0 -1 0 3515 0 1 0 4 2 0 0 20 0 9 0 263905612 886636544 3005 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/24211/statm: 216464 3005 1625 9 0 211026 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 865856

[startup+0.10148 s]
/proc/loadavg: 1.86 1.97 1.99 4/73 24211
/proc/meminfo: memFree=1809664/2055920 swapFree=4181000/4192956
[pid=24211] ppid=24209 vsize=865884 CPUtime=0.09
/proc/24211/stat : 24211 (java) S 24209 24211 20533 0 -1 0 3762 0 1 0 7 2 0 0 20 0 9 0 263905612 886665216 3221 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/24211/statm: 216471 3222 1708 9 0 211026 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865884

[startup+0.301519 s]
/proc/loadavg: 1.86 1.97 1.99 4/73 24211
/proc/meminfo: memFree=1809664/2055920 swapFree=4181000/4192956
[pid=24211] ppid=24209 vsize=866204 CPUtime=0.26
/proc/24211/stat : 24211 (java) S 24209 24211 20533 0 -1 0 5623 0 1 0 22 4 0 0 20 0 9 0 263905612 886992896 5041 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/24211/statm: 216551 5041 1899 9 0 211099 0
Current children cumulated CPU time (s) 0.26
Current children cumulated vsize (KiB) 866204

[startup+0.701595 s]
/proc/loadavg: 1.86 1.97 1.99 4/73 24211
/proc/meminfo: memFree=1809664/2055920 swapFree=4181000/4192956
[pid=24211] ppid=24209 vsize=867284 CPUtime=0.63
/proc/24211/stat : 24211 (java) S 24209 24211 20533 0 -1 0 13397 272 5 0 54 9 0 0 20 0 9 0 263905612 888098816 8440 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/24211/statm: 216821 8440 2627 9 0 211327 0
Current children cumulated CPU time (s) 0.63
Current children cumulated vsize (KiB) 867284

Solver just ended. Dumping a history of the last processes samples

Child status: 0
Real time (s): 0.783886
CPU time (s): 0.681895
CPU user time (s): 0.568913
CPU system time (s): 0.112982
CPU usage (%): 86.989
Max. virtual memory (cumulated for all children) (KiB): 867284

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.568913
system time used= 0.112982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15312
page faults= 5
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 720
involuntary context switches= 596

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node85 at 2008-07-05 05:47:09
IDJOB=1084014
IDBENCH=57519
IDSOLVER=364
FILE ID=node85/1084014-1215229629
PBS_JOBID= 7881761
Free space on /tmp= 126848 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-11.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084014-1215229629/watcher-1084014-1215229629 -o /tmp/evaluation-result-1084014-1215229629/solver-1084014-1215229629 -C 1800 -W 2200 -M 900 --output-limit 1,15  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-1084014-1215229629.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= d024b00d7492160e14e33ed9f6aa64a5
RANDOM SEED=1013468965

node85.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.272
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		: 3000.272
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1810208 kB
Buffers:          9092 kB
Cached:         104544 kB
SwapCached:       5568 kB
Active:         130092 kB
Inactive:        70712 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1810208 kB
SwapTotal:     4192956 kB
SwapFree:      4181000 kB
Dirty:            2356 kB
Writeback:           0 kB
Mapped:          95808 kB
Slab:            30524 kB
Committed_AS:   760440 kB
PageTables:       1648 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= 126844 MiB
End job on node85 at 2008-07-05 05:47:10