Trace number 1084434

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 ESACSAT 1.3208 1.36805

DiagnosticValue
CHECKS137728
NODES252

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-20.xml
MD5SUMac93d30a66ab288a3e01eb7f585af8dc
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.034994
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints800
Maximum constraint arity2
Maximum domain size40
Number of constraints which are defined in extension0
Number of constraints which are defined in intension800
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.09	
0.00/0.09	Abscon 112 (May, 2008)
0.18/0.26	
0.18/0.26	   configuration
0.18/0.26	     name=esac.xml
0.18/0.29	   
0.18/0.29	   instance
0.18/0.29	     name=HOME/instance-1084434-1215230388.xml
0.28/0.33	   
0.28/0.33	   domains being loaded...
0.28/0.34	   
0.28/0.34	   variables being loaded...
0.28/0.37	     nbVariables=40  nbDomainTypes=1  minDomainSize=40  maxDomainSize=40  nbTotalValues=1600
0.28/0.37	       =>  wckTime=0.111  cpuTime=0.1  mem=7M919
0.28/0.37	   
0.28/0.37	   predicates being loaded...
0.38/0.44	   
0.38/0.44	   constraints being loaded...
0.85/0.94	     nbConstraints=781  nbGlobalConstraints=1  nbMergedConstraints=20  nbConvertedConstraints=780
0.85/0.94	     nbConvertConstraintsChecks=33600  nbExtensionStructures=21  nbSharedExtensionStructures=759
0.85/0.94	     nbConflictsStructures=21  nbSharedConflictsStructures=759  nbSharedBinaryRepresentations=1599  minDegree=40
0.85/0.94	     maxDegree=40  minArity=2  avgArity=2.05  maxArity=40  nbGenerators=0  nbFusions=0  symmetryWckTime=0.099
0.85/0.94	     symmetryCpuTime=0.06  nbCliques=1
0.85/0.94	       =>  wckTime=0.678  cpuTime=0.48  mem=18M734
0.95/1.01	   
0.95/1.01	   solver IterativeSystematicSolver being built... 
0.95/1.07	   
0.95/1.07	   INFO : Forward propagation technique limited 
1.06/1.14	       =>  wckTime=0.874  cpuTime=0.59  mem=20M185
1.14/1.21	   
1.14/1.21	   preprocessing
1.14/1.21	     nbConstraintChecks=46904  nbPropagations=1082  nbRevisions=2867  nbUselessRevisions=1907  nbSingletonTests=62
1.14/1.21	     nbEffectiveSingletonTests=0  nbACRemovals=460  nbFoundSingletons=0  nbRemovedValues=460  detectedInconsistency=no
1.14/1.21	       =>  wckTime=0.072  cpuTime=0.05  mem=21M226
1.24/1.33	   
1.24/1.33	   search
1.24/1.33	     run=2  nbConstraintChecks=90824  minDepth=20  maxDepth=40  nbPropagations=9156  nbRevisions=29038
1.24/1.33	     nbUselessRevisions=20563  nbAssignments=252  nbFailedAssignments=30  nbBacktracks=122  nbVisitedNodes=317
1.24/1.33	     nbRestartNogoods=7  nbFoundSolutions=1  mapSize=50  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0
1.24/1.33	     nbREliminables=0  nbIEliminables=28.03  nbDEliminables=0  nbPEliminables=0
1.24/1.33	       =>  wckTime=0.195  cpuTime=0.14  mem=22M267
1.24/1.33	   
1.24/1.33	   global
1.24/1.33	     nbConstraintChecks=137728  nbPropagations=10238  nbRevisions=31905  nbUselessRevisions=22470  nbRestartNogoods=7
1.24/1.33	     solvingWckTime=0.197  solvingCpuTime=0.14  expiredTime=no  totalExploration=no  nbFoundSolutions=1
1.24/1.33	     firstSolutionCpuTime=0.73  globalCpuTime=0.76
1.24/1.33	       =>  wckTime=1.073  cpuTime=0.73  mem=22M267
1.24/1.33	   
1.24/1.33	s SATISFIABLE
1.24/1.33	v 31 9 10 34 29 30 28 17 6 27 3 7 11 4 8 1 5 13 2 0 33 12 14 39 35 37 36 26 16 38 15 20 25 19 24 18 23 32 22 21 
1.24/1.34	d NODES 252
1.24/1.34	d CHECKS 137728
1.24/1.34	   
1.24/1.34	   totalWckTime=1.148  totalCpuTime=0.77

Verifier Data (download as text)

OK

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-1084434-1215230388/watcher-1084434-1215230388 -o /tmp/evaluation-result-1084434-1215230388/solver-1084434-1215230388 -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-1084434-1215230388.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: 2.15 2.04 2.01 4/81 20561
/proc/meminfo: memFree=1794808/2055920 swapFree=4180808/4192956
[pid=20561] ppid=20559 vsize=18572 CPUtime=0
/proc/20561/stat : 20561 (runsolver) R 20559 20561 19796 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 645972376 19017728 292 996147200 4194304 4296836 548682068336 18446744073709551615 231493659943 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/20561/statm: 4643 292 257 25 0 2626 0

[startup+0.018386 s]
/proc/loadavg: 2.15 2.04 2.01 4/81 20561
/proc/meminfo: memFree=1794808/2055920 swapFree=4180808/4192956
[pid=20561] ppid=20559 vsize=10904 CPUtime=0
/proc/20561/stat : 20561 (java) S 20559 20561 19796 0 -1 0 821 0 0 0 0 0 0 0 18 0 2 0 645972376 11165696 574 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 1 0 0
/proc/20561/statm: 2726 574 285 9 0 1198 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 10904

[startup+0.101613 s]
/proc/loadavg: 2.15 2.04 2.01 4/81 20561
/proc/meminfo: memFree=1794808/2055920 swapFree=4180808/4192956
[pid=20561] ppid=20559 vsize=865884 CPUtime=0.09
/proc/20561/stat : 20561 (java) S 20559 20561 19796 0 -1 0 3691 0 1 0 7 2 0 0 18 0 9 0 645972376 886665216 3166 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/20561/statm: 216471 3166 1685 9 0 211026 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865884

[startup+0.301642 s]
/proc/loadavg: 2.15 2.04 2.01 4/81 20561
/proc/meminfo: memFree=1794808/2055920 swapFree=4180808/4192956
[pid=20561] ppid=20559 vsize=866284 CPUtime=0.28
/proc/20561/stat : 20561 (java) S 20559 20561 19796 0 -1 0 5782 0 1 0 24 4 0 0 18 0 9 0 645972376 887074816 5156 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/20561/statm: 216571 5156 1951 9 0 211099 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866284

[startup+0.701703 s]
/proc/loadavg: 2.15 2.04 2.01 4/81 20561
/proc/meminfo: memFree=1794808/2055920 swapFree=4180808/4192956
[pid=20561] ppid=20559 vsize=867672 CPUtime=0.68
/proc/20561/stat : 20561 (java) S 20559 20561 19796 0 -1 0 8309 0 1 0 62 6 0 0 18 0 9 0 645972376 888496128 7667 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/20561/statm: 216918 7667 2012 9 0 211424 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867672

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

[startup+1.10776 s]
/proc/loadavg: 2.14 2.04 2.01 3/90 20574
/proc/meminfo: memFree=1766320/2055920 swapFree=4180808/4192956
[pid=20561] ppid=20559 vsize=867996 CPUtime=1.06
/proc/20561/stat : 20561 (java) S 20559 20561 19796 0 -1 0 15402 314 1 0 93 13 0 0 18 0 9 0 645972376 888827904 9737 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/20561/statm: 216999 9737 2630 9 0 211505 0
[pid=20561/tid=20563] ppid=20559 vsize=867996 CPUtime=0.74
/proc/20561/task/20563/stat : 20563 (java) R 20559 20561 19796 0 -1 64 10873 314 1 0 64 10 0 0 24 0 9 0 645972378 888827904 9737 996147200 134512640 134550740 4294955968 18446744073709551615 4126553128 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=20561/tid=20564] ppid=20559 vsize=867996 CPUtime=0.05
/proc/20561/task/20564/stat : 20564 (java) S 20559 20561 19796 0 -1 64 2805 314 0 0 4 1 0 0 17 0 9 0 645972379 888827904 9737 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=20561/tid=20565] ppid=20559 vsize=867996 CPUtime=0
/proc/20561/task/20565/stat : 20565 (java) S 20559 20561 19796 0 -1 64 13 314 0 0 0 0 0 0 16 0 9 0 645972379 888827904 9737 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=20561/tid=20566] ppid=20559 vsize=867996 CPUtime=0
/proc/20561/task/20566/stat : 20566 (java) S 20559 20561 19796 0 -1 64 12 314 0 0 0 0 0 0 16 0 9 0 645972379 888827904 9737 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=20561/tid=20567] ppid=20559 vsize=867996 CPUtime=0
/proc/20561/task/20567/stat : 20567 (java) S 20559 20561 19796 0 -1 64 1 314 0 0 0 0 0 0 18 0 9 0 645972381 888827904 9737 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=20561/tid=20568] ppid=20559 vsize=867996 CPUtime=0.24
/proc/20561/task/20568/stat : 20568 (java) S 20559 20561 19796 0 -1 64 883 314 0 0 24 0 0 0 15 0 9 0 645972381 888827904 9737 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=20561/tid=20569] ppid=20559 vsize=867996 CPUtime=0
/proc/20561/task/20569/stat : 20569 (java) S 20559 20561 19796 0 -1 64 2 314 0 0 0 0 0 0 19 0 9 0 645972381 888827904 9737 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=20561/tid=20570] ppid=20559 vsize=867996 CPUtime=0
/proc/20561/task/20570/stat : 20570 (java) S 20559 20561 19796 0 -1 64 8 314 0 0 0 0 0 0 15 0 9 0 645972381 888827904 9737 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.06
Current children cumulated vsize (KiB) 867996

[startup+1.30279 s]
/proc/loadavg: 2.14 2.04 2.01 3/90 20574
/proc/meminfo: memFree=1766320/2055920 swapFree=4180808/4192956
[pid=20561] ppid=20559 vsize=867996 CPUtime=1.24
/proc/20561/stat : 20561 (java) S 20559 20561 19796 0 -1 0 16896 314 1 0 111 13 0 0 18 0 9 0 645972376 888827904 10819 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/20561/statm: 216999 10819 2631 9 0 211505 0
[pid=20561/tid=20563] ppid=20559 vsize=867996 CPUtime=0.88
/proc/20561/task/20563/stat : 20563 (java) R 20559 20561 19796 0 -1 64 12337 314 1 0 78 10 0 0 25 0 9 0 645972378 888827904 10819 996147200 134512640 134550740 4294955968 18446744073709551615 4127125959 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=20561/tid=20564] ppid=20559 vsize=867996 CPUtime=0.05
/proc/20561/task/20564/stat : 20564 (java) S 20559 20561 19796 0 -1 64 2805 314 0 0 4 1 0 0 17 0 9 0 645972379 888827904 10819 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=20561/tid=20565] ppid=20559 vsize=867996 CPUtime=0
/proc/20561/task/20565/stat : 20565 (java) S 20559 20561 19796 0 -1 64 13 314 0 0 0 0 0 0 16 0 9 0 645972379 888827904 10819 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=20561/tid=20566] ppid=20559 vsize=867996 CPUtime=0
/proc/20561/task/20566/stat : 20566 (java) S 20559 20561 19796 0 -1 64 12 314 0 0 0 0 0 0 16 0 9 0 645972379 888827904 10819 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=20561/tid=20567] ppid=20559 vsize=867996 CPUtime=0
/proc/20561/task/20567/stat : 20567 (java) S 20559 20561 19796 0 -1 64 1 314 0 0 0 0 0 0 18 0 9 0 645972381 888827904 10819 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=20561/tid=20568] ppid=20559 vsize=867996 CPUtime=0.28
/proc/20561/task/20568/stat : 20568 (java) S 20559 20561 19796 0 -1 64 913 314 0 0 28 0 0 0 15 0 9 0 645972381 888827904 10819 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=20561/tid=20569] ppid=20559 vsize=867996 CPUtime=0
/proc/20561/task/20569/stat : 20569 (java) S 20559 20561 19796 0 -1 64 2 314 0 0 0 0 0 0 19 0 9 0 645972381 888827904 10819 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=20561/tid=20570] ppid=20559 vsize=867996 CPUtime=0
/proc/20561/task/20570/stat : 20570 (java) S 20559 20561 19796 0 -1 64 8 314 0 0 0 0 0 0 15 0 9 0 645972381 888827904 10819 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.24
Current children cumulated vsize (KiB) 867996

Child status: 0
Real time (s): 1.36805
CPU time (s): 1.3208
CPU user time (s): 1.16282
CPU system time (s): 0.157975
CPU usage (%): 96.5457
Max. virtual memory (cumulated for all children) (KiB): 867996

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.16282
system time used= 0.157975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17347
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= 1462
involuntary context switches= 1531

runsolver used 0.004999 second user time and 0.011998 second system time

The end

Launcher Data (download as text)

Begin job on node39 at 2008-07-05 05:59:48
IDJOB=1084434
IDBENCH=57557
IDSOLVER=364
FILE ID=node39/1084434-1215230388
PBS_JOBID= 7881911
Free space on /tmp= 66560 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-20.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-1084434-1215230388/watcher-1084434-1215230388 -o /tmp/evaluation-result-1084434-1215230388/solver-1084434-1215230388 -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-1084434-1215230388.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= ac93d30a66ab288a3e01eb7f585af8dc
RANDOM SEED=75967279

node39.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		: 3000.267
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		: 3000.267
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:       1795288 kB
Buffers:         19012 kB
Cached:         146676 kB
SwapCached:       6012 kB
Active:         117108 kB
Inactive:        89736 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1795288 kB
SwapTotal:     4192956 kB
SwapFree:      4180808 kB
Dirty:            2604 kB
Writeback:           0 kB
Mapped:          57204 kB
Slab:            39028 kB
Committed_AS:  1042900 kB
PageTables:       1896 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= 66556 MiB
End job on node39 at 2008-07-05 05:59:49