Trace number 1092804

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 1.14882 1.21922

DiagnosticValue
CHECKS139296
NODES172

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-8.xml
MD5SUMe02ab284be8165bbf8650c2ca610d92a
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 benchmark0.028995
Satisfiable
(Un)Satisfiability was proved
Number of variables32
Number of constraints520
Maximum constraint arity2
Maximum domain size32
Number of constraints which are defined in extension0
Number of constraints which are defined in intension520
Global constraints used (with number of constraints)

Solver Data (download as text)

0.06/0.09	
0.06/0.09	Abscon 112 (May, 2008)
0.19/0.25	
0.19/0.25	   configuration
0.19/0.25	     name=esac.xml
0.19/0.28	   
0.19/0.28	   instance
0.19/0.29	     name=HOME/instance-1092804-1215277510.xml
0.28/0.32	   
0.28/0.32	   domains being loaded...
0.28/0.33	   
0.28/0.33	   variables being loaded...
0.28/0.36	     nbVariables=32  nbDomainTypes=1  minDomainSize=32  maxDomainSize=32  nbTotalValues=1024
0.28/0.36	       =>  wckTime=0.104  cpuTime=0.09  mem=7M919
0.28/0.36	   
0.28/0.36	   predicates being loaded...
0.38/0.42	   
0.38/0.42	   constraints being loaded...
0.68/0.77	     nbConstraints=497  nbGlobalConstraints=1  nbMergedConstraints=24  nbConvertedConstraints=496
0.77/0.80	     nbConvertConstraintsChecks=9216  nbExtensionStructures=9  nbSharedExtensionStructures=487  nbConflictsStructures=9
0.77/0.80	     nbSharedConflictsStructures=487  nbSharedBinaryRepresentations=511  minDegree=32  maxDegree=32  minArity=2
0.77/0.80	     avgArity=2.06  maxArity=32  nbGenerators=0  nbFusions=0  symmetryWckTime=0.086  symmetryCpuTime=0.06  nbCliques=1
0.77/0.80	       =>  wckTime=0.52  cpuTime=0.38  mem=16M752
0.77/0.83	   
0.77/0.84	   solver IterativeSystematicSolver being built... 
0.87/0.91	   
0.87/0.91	   INFO : Forward propagation technique limited 
0.87/0.97	       =>  wckTime=0.721  cpuTime=0.49  mem=20M71
0.96/1.04	   
0.96/1.04	   preprocessing
0.96/1.04	     nbConstraintChecks=34248  nbPropagations=574  nbRevisions=3717  nbUselessRevisions=2817  nbSingletonTests=43
0.96/1.04	     nbEffectiveSingletonTests=0  nbACRemovals=528  nbFoundSingletons=0  nbRemovedValues=528  detectedInconsistency=no
0.96/1.04	       =>  wckTime=0.066  cpuTime=0.05  mem=20M71
1.06/1.15	   
1.06/1.15	   search
1.06/1.15	     run=2  nbConstraintChecks=105048  minDepth=0  maxDepth=12  nbPropagations=6892  nbRevisions=42638
1.06/1.15	     nbUselessRevisions=32441  nbAssignments=172  nbFailedAssignments=36  nbBacktracks=117  nbVisitedNodes=229
1.06/1.16	     nbRestartNogoods=7  mapSize=30  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0  nbREliminables=0
1.06/1.16	     nbIEliminables=30.12  nbDEliminables=0  nbPEliminables=0
1.06/1.16	       =>  wckTime=0.178  cpuTime=0.13  mem=21M161
1.06/1.16	   
1.06/1.16	   global
1.06/1.16	     nbConstraintChecks=139296  nbPropagations=7466  nbRevisions=46355  nbUselessRevisions=35258  nbRestartNogoods=7
1.06/1.16	     solvingWckTime=0.18  solvingCpuTime=0.13  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
1.06/1.16	     globalCpuTime=0.66
1.06/1.16	       =>  wckTime=0.904  cpuTime=0.62  mem=21M161
1.06/1.16	   
1.06/1.16	s UNSATISFIABLE
1.06/1.16	d NODES 172
1.06/1.16	d CHECKS 139296
1.06/1.16	   
1.06/1.16	   totalWckTime=0.97  totalCpuTime=0.67

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-1092804-1215277510/watcher-1092804-1215277510 -o /tmp/evaluation-result-1092804-1215277510/solver-1092804-1215277510 -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-1092804-1215277510.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: 2.00 2.00 2.00 3/72 329
/proc/meminfo: memFree=1696792/2055920 swapFree=4122232/4192956
[pid=329] ppid=327 vsize=18572 CPUtime=0
/proc/329/stat : 329 (runsolver) R 327 329 29662 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 1315996893 19017728 292 996147200 4194304 4296836 548682068336 18446744073709551615 273952599335 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/329/statm: 4643 292 257 25 0 2626 0

[startup+0.086687 s]
/proc/loadavg: 2.00 2.00 2.00 3/72 329
/proc/meminfo: memFree=1696792/2055920 swapFree=4122232/4192956
[pid=329] ppid=327 vsize=865856 CPUtime=0.06
/proc/329/stat : 329 (java) S 327 329 29662 0 -1 0 3508 0 1 0 5 1 0 0 18 0 9 0 1315996893 886636544 2998 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/329/statm: 216464 2998 1625 9 0 211026 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 865856

[startup+0.10269 s]
/proc/loadavg: 2.00 2.00 2.00 3/72 329
/proc/meminfo: memFree=1696792/2055920 swapFree=4122232/4192956
[pid=329] ppid=327 vsize=865884 CPUtime=0.09
/proc/329/stat : 329 (java) S 327 329 29662 0 -1 0 3686 0 1 0 7 2 0 0 18 0 9 0 1315996893 886665216 3161 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/329/statm: 216471 3161 1685 9 0 211026 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865884

[startup+0.301728 s]
/proc/loadavg: 2.00 2.00 2.00 3/72 329
/proc/meminfo: memFree=1696792/2055920 swapFree=4122232/4192956
[pid=329] ppid=327 vsize=866284 CPUtime=0.28
/proc/329/stat : 329 (java) S 327 329 29662 0 -1 0 5849 0 1 0 25 3 0 0 18 0 9 0 1315996893 887074816 5223 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/329/statm: 216571 5224 1953 9 0 211099 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866284

[startup+0.702808 s]
/proc/loadavg: 2.00 2.00 2.00 3/72 329
/proc/meminfo: memFree=1696792/2055920 swapFree=4122232/4192956
[pid=329] ppid=327 vsize=867076 CPUtime=0.68
/proc/329/stat : 329 (java) S 327 329 29662 0 -1 0 8337 0 1 0 60 8 0 0 18 0 9 0 1315996893 887885824 7695 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/329/statm: 216769 7695 2010 9 0 211275 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867076

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

[startup+1.1079 s]
/proc/loadavg: 2.00 2.00 2.00 4/83 342
/proc/meminfo: memFree=1666048/2055920 swapFree=4122232/4192956
[pid=329] ppid=327 vsize=867544 CPUtime=1.06
/proc/329/stat : 329 (java) S 327 329 29662 0 -1 0 16197 176 1 0 95 11 0 0 18 0 10 0 1315996893 888365056 10546 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/329/statm: 216886 10546 2631 9 0 211392 0
[pid=342] ppid=329 vsize=44 CPUtime=0
/proc/342/stat : 342 (rm) R 329 329 29662 0 -1 4194304 21 0 0 0 0 0 0 0 19 0 1 0 1315996966 45056 2 996147200 0 0 548682069479 18446744073709551615 4294960144 0 4 0 0 0 0 0 17 1 0 0
/proc/342/statm: 11 2 0 0 0 1 0
[pid=329/tid=331] ppid=327 vsize=867544 CPUtime=0.77
/proc/329/task/331/stat : 331 (java) R 327 329 29662 0 -1 64 12091 176 1 0 68 9 0 0 18 0 10 0 1315996895 888365056 10546 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=329/tid=332] ppid=327 vsize=867544 CPUtime=0.05
/proc/329/task/332/stat : 332 (java) S 327 329 29662 0 -1 64 2546 176 0 0 5 0 0 0 16 0 10 0 1315996896 888365056 10546 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=329/tid=333] ppid=327 vsize=867544 CPUtime=0
/proc/329/task/333/stat : 333 (java) S 327 329 29662 0 -1 64 13 176 0 0 0 0 0 0 16 0 10 0 1315996897 888365056 10546 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=329/tid=334] ppid=327 vsize=867544 CPUtime=0
/proc/329/task/334/stat : 334 (java) S 327 329 29662 0 -1 64 12 176 0 0 0 0 0 0 15 0 10 0 1315996897 888365056 10546 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=329/tid=335] ppid=327 vsize=867544 CPUtime=0
/proc/329/task/335/stat : 335 (java) S 327 329 29662 0 -1 64 1 176 0 0 0 0 0 0 18 0 10 0 1315996899 888365056 10546 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=329/tid=336] ppid=327 vsize=867544 CPUtime=0.21
/proc/329/task/336/stat : 336 (java) S 327 329 29662 0 -1 64 729 176 0 0 21 0 0 0 15 0 10 0 1315996899 888365056 10546 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=329/tid=337] ppid=327 vsize=867544 CPUtime=0
/proc/329/task/337/stat : 337 (java) S 327 329 29662 0 -1 64 2 176 0 0 0 0 0 0 19 0 10 0 1315996899 888365056 10546 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=329/tid=338] ppid=327 vsize=867544 CPUtime=0
/proc/329/task/338/stat : 338 (java) R 327 329 29662 0 -1 64 5 176 0 0 0 0 0 0 15 0 10 0 1315996899 888365056 10546 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=329/tid=341] ppid=327 vsize=867544 CPUtime=0
/proc/329/task/341/stat : 341 (java) S 327 329 29662 0 -1 64 44 176 0 0 0 0 0 0 17 0 10 0 1315996966 888365056 10546 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 18446744071563356171 0 0 -1 0 0 0
Current children cumulated CPU time (s) 1.06
Current children cumulated vsize (KiB) 867588

[startup+1.2019 s]
/proc/loadavg: 2.00 2.00 2.00 4/83 342
/proc/meminfo: memFree=1666048/2055920 swapFree=4122232/4192956
[pid=329] ppid=327 vsize=867544 CPUtime=1.12
/proc/329/stat : 329 (java) S 327 329 29662 0 -1 0 16302 298 1 0 101 11 0 0 18 0 9 0 1315996893 888365056 10644 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/329/statm: 216886 10644 2631 9 0 211392 0
[pid=329/tid=331] ppid=327 vsize=867544 CPUtime=0.82
/proc/329/task/331/stat : 331 (java) S 327 329 29662 0 -1 64 12187 298 1 0 73 9 0 0 18 0 9 0 1315996895 888365056 10644 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=329/tid=332] ppid=327 vsize=867544 CPUtime=0.05
/proc/329/task/332/stat : 332 (java) S 327 329 29662 0 -1 64 2546 298 0 0 5 0 0 0 16 0 9 0 1315996896 888365056 10644 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=329/tid=333] ppid=327 vsize=867544 CPUtime=0
/proc/329/task/333/stat : 333 (java) S 327 329 29662 0 -1 64 13 298 0 0 0 0 0 0 16 0 9 0 1315996897 888365056 10644 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=329/tid=334] ppid=327 vsize=867544 CPUtime=0
/proc/329/task/334/stat : 334 (java) S 327 329 29662 0 -1 64 12 298 0 0 0 0 0 0 15 0 9 0 1315996897 888365056 10644 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=329/tid=335] ppid=327 vsize=867544 CPUtime=0
/proc/329/task/335/stat : 335 (java) S 327 329 29662 0 -1 64 1 298 0 0 0 0 0 0 18 0 9 0 1315996899 888365056 10644 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=329/tid=336] ppid=327 vsize=867544 CPUtime=0.22
/proc/329/task/336/stat : 336 (java) S 327 329 29662 0 -1 64 735 298 0 0 22 0 0 0 15 0 9 0 1315996899 888365056 10644 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=329/tid=337] ppid=327 vsize=867544 CPUtime=0
/proc/329/task/337/stat : 337 (java) S 327 329 29662 0 -1 64 2 298 0 0 0 0 0 0 19 0 9 0 1315996899 888365056 10644 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=329/tid=338] ppid=327 vsize=867544 CPUtime=0
/proc/329/task/338/stat : 338 (java) S 327 329 29662 0 -1 64 5 298 0 0 0 0 0 0 15 0 9 0 1315996899 888365056 10644 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.12
Current children cumulated vsize (KiB) 867544

Child status: 0
Real time (s): 1.21922
CPU time (s): 1.14882
CPU user time (s): 1.02084
CPU system time (s): 0.12798
CPU usage (%): 94.2258
Max. virtual memory (cumulated for all children) (KiB): 867588

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.02084
system time used= 0.12798
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16627
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= 1292
involuntary context switches= 1273

runsolver used 0.005999 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node20 at 2008-07-05 19:05:10
IDJOB=1092804
IDBENCH=58657
IDSOLVER=364
FILE ID=node20/1092804-1215277510
PBS_JOBID= 7882076
Free space on /tmp= 66500 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-8.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-1092804-1215277510/watcher-1092804-1215277510 -o /tmp/evaluation-result-1092804-1215277510/solver-1092804-1215277510 -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-1092804-1215277510.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= e02ab284be8165bbf8650c2ca610d92a
RANDOM SEED=799384928

node20.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		: 3000.263
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		: 3000.263
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:       1697272 kB
Buffers:         42308 kB
Cached:         155120 kB
SwapCached:      64372 kB
Active:         213580 kB
Inactive:        90808 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1697272 kB
SwapTotal:     4192956 kB
SwapFree:      4122232 kB
Dirty:            2080 kB
Writeback:           0 kB
Mapped:         114596 kB
Slab:            39332 kB
Committed_AS:  2743336 kB
PageTables:       1940 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= 66500 MiB
End job on node20 at 2008-07-05 19:05:11