Trace number 1082252

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 ACUNSAT 0.853869 0.888067

DiagnosticValue
CHECKS10812
NODES43

General information on the benchmark

Namecsp/langford3/
normalized-langford-3-6.xml
MD5SUMf380abbe6eb872dcedead7538a516eac
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 benchmark0.011997
Satisfiable
(Un)Satisfiability was proved
Number of variables18
Number of constraints165
Maximum constraint arity2
Maximum domain size18
Number of constraints which are defined in extension0
Number of constraints which are defined in intension165
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.08	
0.00/0.08	Abscon 112 (May, 2008)
0.19/0.24	
0.19/0.24	   configuration
0.19/0.24	     name=mac.xml
0.19/0.27	   
0.19/0.27	   instance
0.19/0.27	     name=HOME/instance-1082252-1215221419.xml
0.29/0.31	   
0.29/0.31	   domains being loaded...
0.29/0.32	   
0.29/0.32	   variables being loaded...
0.29/0.34	     nbVariables=18  nbDomainTypes=1  minDomainSize=18  maxDomainSize=18  nbTotalValues=324
0.29/0.34	       =>  wckTime=0.1  cpuTime=0.09  mem=7M919
0.29/0.34	   
0.29/0.34	   predicates being loaded...
0.39/0.40	   
0.39/0.40	   constraints being loaded...
0.49/0.59	     nbConstraints=154  nbGlobalConstraints=1  nbMergedConstraints=12  nbConvertedConstraints=153
0.49/0.59	     nbConvertConstraintsChecks=2268  nbExtensionStructures=7  nbSharedExtensionStructures=146  nbConflictsStructures=7
0.49/0.59	     nbSharedConflictsStructures=146  nbSharedBinaryRepresentations=215  minDegree=18  maxDegree=18  minArity=2
0.49/0.59	     avgArity=2.1  maxArity=18  nbGenerators=0  nbFusions=0  symmetryWckTime=0.052  symmetryCpuTime=0.02  nbCliques=1
0.49/0.59	       =>  wckTime=0.351  cpuTime=0.26  mem=14M787
0.58/0.65	   
0.58/0.65	   solver IterativeSystematicSolver being built... 
0.68/0.72	   
0.68/0.72	   INFO : Forward propagation technique limited 
0.68/0.79	       =>  wckTime=0.543  cpuTime=0.38  mem=19M540
0.68/0.79	   
0.68/0.79	   preprocessing
0.68/0.79	     nbConstraintChecks=486  nbPropagations=30  nbRevisions=30  nbUselessRevisions=0  nbRemovedValues=162
0.68/0.79	     detectedInconsistency=no
0.68/0.80	       =>  wckTime=0.0080  cpuTime=0.0  mem=19M540
0.77/0.85	   
0.77/0.85	   search
0.77/0.85	     run=0  nbConstraintChecks=10326  minDepth=0  maxDepth=6  nbPropagations=476  nbRevisions=2310
0.77/0.85	     nbUselessRevisions=1667  nbAssignments=43  nbFailedAssignments=10  nbBacktracks=31  nbVisitedNodes=62
0.77/0.85	     nbRestartNogoods=0  mapSize=11  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0  nbREliminables=0
0.77/0.85	     nbIEliminables=16.64  nbDEliminables=0  nbPEliminables=0
0.77/0.85	       =>  wckTime=0.06  cpuTime=0.04  mem=20M532
0.77/0.85	   
0.77/0.85	   global
0.77/0.85	     nbConstraintChecks=10812  nbPropagations=506  nbRevisions=2340  nbUselessRevisions=1667  nbRestartNogoods=0
0.77/0.85	     solvingWckTime=0.062  solvingCpuTime=0.04  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.77/0.85	     globalCpuTime=0.47
0.77/0.85	       =>  wckTime=0.606  cpuTime=0.42  mem=20M532
0.77/0.85	   
0.77/0.85	s UNSATISFIABLE
0.77/0.85	d NODES 43
0.77/0.85	d CHECKS 10812
0.77/0.85	   
0.77/0.85	   totalWckTime=0.673  totalCpuTime=0.47

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-1082252-1215221419/watcher-1082252-1215221419 -o /tmp/evaluation-result-1082252-1215221419/solver-1082252-1215221419 -C 1800 -W 2200 -M 900 --output-limit 1,15 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-1082252-1215221419.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: 1.93 1.98 1.99 3/84 29505
/proc/meminfo: memFree=1731672/2055920 swapFree=4179916/4192956
[pid=29505] ppid=29503 vsize=152 CPUtime=0
/proc/29505/stat : 29505 (java) R 29503 29505 27022 0 -1 0 205 0 0 0 0 0 0 0 18 0 1 0 2001115201 155648 26 996147200 134512640 134550740 4294955968 18446744073709551615 3167012 0 0 4096 0 0 0 0 17 0 0 0
/proc/29505/statm: 38 26 19 9 0 4 0

[startup+0.013405 s]
/proc/loadavg: 1.93 1.98 1.99 3/84 29505
/proc/meminfo: memFree=1731672/2055920 swapFree=4179916/4192956
[pid=29505] ppid=29503 vsize=10936 CPUtime=0
/proc/29505/stat : 29505 (java) S 29503 29505 27022 0 -1 0 853 0 1 0 0 0 0 0 18 0 2 0 2001115201 11198464 605 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0
/proc/29505/statm: 2746 608 312 9 0 1198 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 10936

[startup+0.10241 s]
/proc/loadavg: 1.93 1.98 1.99 3/84 29505
/proc/meminfo: memFree=1731672/2055920 swapFree=4179916/4192956
[pid=29505] ppid=29503 vsize=865884 CPUtime=0.09
/proc/29505/stat : 29505 (java) S 29503 29505 27022 0 -1 0 3795 0 1 0 8 1 0 0 18 0 9 0 2001115201 886665216 3246 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/29505/statm: 216471 3246 1720 9 0 211026 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865884

[startup+0.302436 s]
/proc/loadavg: 1.93 1.98 1.99 3/84 29505
/proc/meminfo: memFree=1731672/2055920 swapFree=4179916/4192956
[pid=29505] ppid=29503 vsize=866284 CPUtime=0.29
/proc/29505/stat : 29505 (java) S 29503 29505 27022 0 -1 0 5996 0 1 0 26 3 0 0 18 0 9 0 2001115201 887074816 5370 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/29505/statm: 216571 5370 1956 9 0 211099 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866284

[startup+0.702475 s]
/proc/loadavg: 1.93 1.98 1.99 3/84 29505
/proc/meminfo: memFree=1731672/2055920 swapFree=4179916/4192956
[pid=29505] ppid=29503 vsize=867400 CPUtime=0.68
/proc/29505/stat : 29505 (java) S 29503 29505 27022 0 -1 0 12028 272 1 0 61 7 0 0 18 0 9 0 2001115201 888217600 8408 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/29505/statm: 216850 8408 2628 9 0 211356 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867400

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

[startup+0.802484 s]
/proc/loadavg: 1.93 1.98 1.99 3/84 29505
/proc/meminfo: memFree=1731672/2055920 swapFree=4179916/4192956
[pid=29505] ppid=29503 vsize=867400 CPUtime=0.77
/proc/29505/stat : 29505 (java) S 29503 29505 27022 0 -1 0 15313 272 1 0 69 8 0 0 18 0 9 0 2001115201 888217600 10143 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/29505/statm: 216850 10143 2630 9 0 211356 0
Current children cumulated CPU time (s) 0.77
Current children cumulated vsize (KiB) 867400

Child status: 0
Real time (s): 0.888067
CPU time (s): 0.853869
CPU user time (s): 0.751885
CPU system time (s): 0.101984
CPU usage (%): 96.1492
Max. virtual memory (cumulated for all children) (KiB): 867400

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.751885
system time used= 0.101984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15879
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= 874
involuntary context switches= 934

runsolver used 0.002999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node37 at 2008-07-05 03:30:19
IDJOB=1082252
IDBENCH=57192
IDSOLVER=363
FILE ID=node37/1082252-1215221419
PBS_JOBID= 7881727
Free space on /tmp= 66556 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/langford3/normalized-langford-3-6.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1082252-1215221419/watcher-1082252-1215221419 -o /tmp/evaluation-result-1082252-1215221419/solver-1082252-1215221419 -C 1800 -W 2200 -M 900 --output-limit 1,15  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-1082252-1215221419.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= f380abbe6eb872dcedead7538a516eac
RANDOM SEED=891776677

node37.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		: 3000.236
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		: 3000.236
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:       1732152 kB
Buffers:         15860 kB
Cached:         126844 kB
SwapCached:       6964 kB
Active:         201564 kB
Inactive:        65428 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1732152 kB
SwapTotal:     4192956 kB
SwapFree:      4179916 kB
Dirty:            2464 kB
Writeback:           0 kB
Mapped:         135732 kB
Slab:            41944 kB
Committed_AS:  4251816 kB
PageTables:       2028 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66556 MiB
End job on node37 at 2008-07-05 03:30:20