Trace number 1084182

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 0.888864 0.909254

DiagnosticValue
CHECKS24
NODES0

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-3.xml
MD5SUMd07220ca9cf8898c2c9b405e7e6368f7
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 benchmark0.015997
Satisfiable
(Un)Satisfiability was proved
Number of variables24
Number of constraints210
Maximum constraint arity2
Maximum domain size12
Number of constraints which are defined in extension0
Number of constraints which are defined in intension210
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05/0.09	
0.05/0.09	Abscon 112 (May, 2008)
0.18/0.26	
0.18/0.26	   configuration
0.18/0.26	     name=esac.xml
0.29/0.30	   
0.29/0.30	   instance
0.29/0.30	     name=HOME/instance-1084182-1215230175.xml
0.29/0.33	   
0.29/0.33	   domains being loaded...
0.29/0.34	   
0.29/0.34	   variables being loaded...
0.29/0.37	     nbVariables=24  nbDomainTypes=1  minDomainSize=12  maxDomainSize=12  nbTotalValues=288
0.29/0.37	       =>  wckTime=0.107  cpuTime=0.09  mem=7M919
0.29/0.37	   
0.29/0.37	   predicates being loaded...
0.39/0.43	   
0.39/0.43	   constraints being loaded...
0.59/0.69	     nbConstraints=212  nbGlobalConstraints=2  nbConvertedConstraints=210  nbConvertConstraintsChecks=1872
0.59/0.69	     nbExtensionStructures=13  nbSharedExtensionStructures=197  nbConflictsStructures=13
0.59/0.69	     nbSharedConflictsStructures=197  nbSharedBinaryRepresentations=198  minDegree=13  maxDegree=25  minArity=2
0.59/0.69	     avgArity=2.16  maxArity=24  nbGenerators=1  nbFusions=1  symmetryWckTime=0.07  symmetryCpuTime=0.03  nbCliques=1
0.59/0.69	       =>  wckTime=0.431  cpuTime=0.31  mem=15M780
0.67/0.74	   
0.67/0.74	   solver IterativeSystematicSolver being built... 
0.77/0.81	   
0.77/0.81	   INFO : Forward propagation technique limited 
0.77/0.88	       =>  wckTime=0.614  cpuTime=0.42  mem=19M781
0.77/0.88	   
0.77/0.88	   preprocessing
0.77/0.88	     nbConstraintChecks=24  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRemovedValues=2  nbRemovedTuples=65
0.77/0.88	     detectedInconsistency=yes
0.77/0.88	       =>  wckTime=0.0030  cpuTime=0.01  mem=19M781
0.77/0.88	   
0.77/0.88	   global
0.77/0.88	     nbConstraintChecks=24  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRestartNogoods=0
0.77/0.88	     solvingWckTime=0.0060  solvingCpuTime=0.01  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.77/0.88	     globalCpuTime=0.48
0.77/0.88	       =>  wckTime=0.621  cpuTime=0.43  mem=20M772
0.77/0.89	   
0.77/0.89	s UNSATISFIABLE
0.77/0.89	d NODES 0
0.77/0.89	d CHECKS 24
0.77/0.89	   
0.77/0.89	   totalWckTime=0.693  totalCpuTime=0.48

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-1084182-1215230175/watcher-1084182-1215230175 -o /tmp/evaluation-result-1084182-1215230175/solver-1084182-1215230175 -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-1084182-1215230175.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: 2.20 2.13 2.08 3/83 16027
/proc/meminfo: memFree=1013888/2055920 swapFree=4179828/4192956
[pid=16027] ppid=16025 vsize=18572 CPUtime=0
/proc/16027/stat : 16027 (runsolver) R 16025 16027 14626 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 2001990981 19017728 292 996147200 4194304 4296836 548682068336 18446744073709551615 254195330343 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/16027/statm: 4643 292 257 25 0 2626 0

[startup+0.0700319 s]
/proc/loadavg: 2.20 2.13 2.08 3/83 16027
/proc/meminfo: memFree=1013888/2055920 swapFree=4179828/4192956
[pid=16027] ppid=16025 vsize=864076 CPUtime=0.05
/proc/16027/stat : 16027 (java) S 16025 16027 14626 0 -1 0 2811 0 1 0 3 2 0 0 18 0 9 0 2001990981 884813824 2349 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/16027/statm: 216019 2349 1126 9 0 210976 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 864076

[startup+0.101038 s]
/proc/loadavg: 2.20 2.13 2.08 3/83 16027
/proc/meminfo: memFree=1013888/2055920 swapFree=4179828/4192956
[pid=16027] ppid=16025 vsize=865884 CPUtime=0.08
/proc/16027/stat : 16027 (java) S 16025 16027 14626 0 -1 0 3682 0 1 0 6 2 0 0 18 0 9 0 2001990981 886665216 3157 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/16027/statm: 216471 3157 1681 9 0 211026 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865884

[startup+0.301069 s]
/proc/loadavg: 2.20 2.13 2.08 3/83 16027
/proc/meminfo: memFree=1013888/2055920 swapFree=4179828/4192956
[pid=16027] ppid=16025 vsize=866284 CPUtime=0.29
/proc/16027/stat : 16027 (java) S 16025 16027 14626 0 -1 0 5756 0 1 0 24 5 0 0 18 0 9 0 2001990981 887074816 5132 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/16027/statm: 216571 5132 1948 9 0 211099 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866284

[startup+0.701126 s]
/proc/loadavg: 2.20 2.13 2.08 3/83 16027
/proc/meminfo: memFree=1013888/2055920 swapFree=4179828/4192956
[pid=16027] ppid=16025 vsize=867728 CPUtime=0.67
/proc/16027/stat : 16027 (java) S 16025 16027 14626 0 -1 0 9452 289 1 0 60 7 0 0 18 0 9 0 2001990981 888553472 7645 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/16027/statm: 216932 7645 2023 9 0 211438 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 867728

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

[startup+0.901162 s]
/proc/loadavg: 2.20 2.13 2.08 3/83 16027
/proc/meminfo: memFree=1013888/2055920 swapFree=4179828/4192956
[pid=16027] ppid=16025 vsize=867856 CPUtime=0.86
/proc/16027/stat : 16027 (java) S 16025 16027 14626 0 -1 0 15727 289 1 0 77 9 0 0 18 0 8 0 2001990981 888684544 10323 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/16027/statm: 216964 10323 2629 9 0 211470 0
Current children cumulated CPU time (s) 0.86
Current children cumulated vsize (KiB) 867856

Child status: 0
Real time (s): 0.909254
CPU time (s): 0.888864
CPU user time (s): 0.775882
CPU system time (s): 0.112982
CPU usage (%): 97.7575
Max. virtual memory (cumulated for all children) (KiB): 867856

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.775882
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= 16035
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= 858
involuntary context switches= 915

runsolver used 0.006998 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node34 at 2008-07-05 05:56:15
IDJOB=1084182
IDBENCH=57530
IDSOLVER=364
FILE ID=node34/1084182-1215230175
PBS_JOBID= 7881890
Free space on /tmp= 66500 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-3.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-1084182-1215230175/watcher-1084182-1215230175 -o /tmp/evaluation-result-1084182-1215230175/solver-1084182-1215230175 -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-1084182-1215230175.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= d07220ca9cf8898c2c9b405e7e6368f7
RANDOM SEED=1698095182

node34.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		: 3000.259
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		: 3000.259
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:       1014368 kB
Buffers:         47312 kB
Cached:         232400 kB
SwapCached:       6976 kB
Active:         855948 kB
Inactive:       128240 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1014368 kB
SwapTotal:     4192956 kB
SwapFree:      4179828 kB
Dirty:            2620 kB
Writeback:           0 kB
Mapped:         715852 kB
Slab:            41116 kB
Committed_AS:  4241420 kB
PageTables:       3196 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= 66496 MiB
End job on node34 at 2008-07-05 05:56:16