Trace number 2097615

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 ACSAT 0.988849 1.05232

DiagnosticValue
CHECKS11057
NODES30

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-15.xml
MD5SUMb3b5e0407ff63c54b23fa4bc60010aed
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 benchmark0.020996
Satisfiable
(Un)Satisfiability was proved
Number of variables30
Number of constraints450
Maximum constraint arity2
Maximum domain size30
Number of constraints which are defined in extension0
Number of constraints which are defined in intension450
Global constraints used (with number of constraints)

Solver Data 

0.06/0.09	
0.06/0.09	Abscon 112 (May, 2008)
0.18/0.25	
0.18/0.25	   configuration
0.18/0.25	     name=mac.xml
0.18/0.29	   
0.18/0.29	   instance
0.18/0.29	     name=HOME/instance-2097615-1247413658.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=30  nbDomainTypes=1  minDomainSize=30  maxDomainSize=30  nbTotalValues=900
0.28/0.36	       =>  wckTime=0.106  cpuTime=0.09  mem=7M892
0.28/0.36	   
0.28/0.36	   predicates being loaded...
0.38/0.42	   
0.38/0.42	   constraints being loaded...
0.68/0.76	     nbConstraints=436  nbGlobalConstraints=1  nbMergedConstraints=15  nbConvertedConstraints=435
0.68/0.76	     nbConvertConstraintsChecks=14400  nbExtensionStructures=16  nbSharedExtensionStructures=419
0.68/0.76	     nbConflictsStructures=16  nbSharedConflictsStructures=419  nbSharedBinaryRepresentations=899  minDegree=30
0.68/0.76	     maxDegree=30  minArity=2  avgArity=2.06  maxArity=30  nbGenerators=0  nbFusions=0  symmetryWckTime=0.074
0.68/0.76	     symmetryCpuTime=0.03  nbCliques=1
0.68/0.76	       =>  wckTime=0.505  cpuTime=0.35  mem=16M847
0.76/0.82	   
0.76/0.82	   solver IterativeSystematicSolver being built... 
0.76/0.88	   
0.76/0.88	   INFO : Forward propagation technique limited 
0.86/0.94	       =>  wckTime=0.685  cpuTime=0.46  mem=20M40
0.86/0.95	   
0.86/0.95	   preprocessing
0.86/0.95	     nbConstraintChecks=900  nbPropagations=45  nbRevisions=30  nbUselessRevisions=0  nbRemovedValues=270
0.86/0.95	     detectedInconsistency=no
0.86/0.95	       =>  wckTime=0.013  cpuTime=0.01  mem=20M40
0.86/1.00	   
0.86/1.00	   search
0.86/1.00	     run=0  nbConstraintChecks=10157  minDepth=31  maxDepth=30  nbPropagations=363  nbRevisions=874
0.86/1.00	     nbUselessRevisions=565  nbAssignments=30  nbFailedAssignments=0  nbBacktracks=0  nbVisitedNodes=31
0.86/1.00	     nbRestartNogoods=0  nbFoundSolutions=1  mapSize=0  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0
0.86/1.00	     nbREliminables=0  nbIEliminables=22.55  nbDEliminables=0  nbPEliminables=0
0.86/1.00	       =>  wckTime=0.054  cpuTime=0.03  mem=21M32
0.96/1.00	   
0.96/1.00	   global
0.96/1.00	     nbConstraintChecks=11057  nbPropagations=408  nbRevisions=904  nbUselessRevisions=565  nbRestartNogoods=0
0.96/1.00	     solvingWckTime=0.056  solvingCpuTime=0.03  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.96/1.00	     firstSolutionCpuTime=0.49  globalCpuTime=0.53
0.96/1.00	       =>  wckTime=0.744  cpuTime=0.49  mem=21M32
0.96/1.00	   
0.96/1.00	s SATISFIABLE
0.96/1.00	v 27 22 24 21 6 3 7 11 4 8 1 5 9 2 0 29 25 28 26 12 10 15 20 14 19 13 18 23 17 16 
0.96/1.00	d NODES 30
0.96/1.00	d CHECKS 11057
0.96/1.01	   
0.96/1.01	   totalWckTime=0.816  totalCpuTime=0.53

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2097615-1247413658/watcher-2097615-1247413658 -o /tmp/evaluation-result-2097615-1247413658/solver-2097615-1247413658 -C 1800 -W 2000 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-2097615-1247413658.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.26 2.09 2.02 4/81 31283
/proc/meminfo: memFree=1661488/2055920 swapFree=4192812/4192956
[pid=31283] ppid=31281 vsize=18576 CPUtime=0
/proc/31283/stat : 31283 (runsolver) R 31281 31283 28460 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 28433056 19021824 284 996147200 4194304 4302564 548682068384 18446744073709551615 228706544935 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/31283/statm: 4644 284 249 26 0 2626 0

[startup+0.0806821 s]
/proc/loadavg: 2.26 2.09 2.02 4/81 31283
/proc/meminfo: memFree=1661488/2055920 swapFree=4192812/4192956
[pid=31283] ppid=31281 vsize=864144 CPUtime=0.06
/proc/31283/stat : 31283 (java) S 31281 31283 28460 0 -1 0 3119 0 1 0 4 2 0 0 21 0 9 0 28433056 884883456 2604 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/31283/statm: 216036 2604 1237 9 0 210929 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 864144

[startup+0.101681 s]
/proc/loadavg: 2.26 2.09 2.02 4/81 31283
/proc/meminfo: memFree=1661488/2055920 swapFree=4192812/4192956
[pid=31283] ppid=31281 vsize=865980 CPUtime=0.08
/proc/31283/stat : 31283 (java) S 31281 31283 28460 0 -1 0 3727 0 1 0 6 2 0 0 21 0 9 0 28433056 886763520 3195 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/31283/statm: 216495 3195 1695 9 0 210980 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865980

[startup+0.301701 s]
/proc/loadavg: 2.26 2.09 2.02 4/81 31283
/proc/meminfo: memFree=1661488/2055920 swapFree=4192812/4192956
[pid=31283] ppid=31281 vsize=866380 CPUtime=0.28
/proc/31283/stat : 31283 (java) S 31281 31283 28460 0 -1 0 5925 0 1 0 25 3 0 0 21 0 9 0 28433056 887173120 5291 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/31283/statm: 216595 5291 1983 9 0 211053 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866380

[startup+0.701738 s]
/proc/loadavg: 2.26 2.09 2.02 4/81 31283
/proc/meminfo: memFree=1661488/2055920 swapFree=4192812/4192956
[pid=31283] ppid=31281 vsize=867176 CPUtime=0.68
/proc/31283/stat : 31283 (java) S 31281 31283 28460 0 -1 0 8401 0 1 0 60 8 0 0 21 0 9 0 28433056 887988224 7753 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/31283/statm: 216794 7753 2036 9 0 211230 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867176

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

[startup+0.901758 s]
/proc/loadavg: 2.26 2.09 2.02 4/81 31283
/proc/meminfo: memFree=1661488/2055920 swapFree=4192812/4192956
[pid=31283] ppid=31281 vsize=867640 CPUtime=0.86
/proc/31283/stat : 31283 (java) S 31281 31283 28460 0 -1 0 14280 293 1 0 77 9 0 0 21 0 9 0 28433056 888463360 9093 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/31283/statm: 216910 9093 2652 9 0 211346 0
Current children cumulated CPU time (s) 0.86
Current children cumulated vsize (KiB) 867640

[startup+1.00176 s]
/proc/loadavg: 2.26 2.09 2.02 3/90 31296
/proc/meminfo: memFree=1629480/2055920 swapFree=4192812/4192956
[pid=31283] ppid=31281 vsize=867640 CPUtime=0.96
/proc/31283/stat : 31283 (java) S 31281 31283 28460 0 -1 0 16235 293 1 0 86 10 0 0 21 0 9 0 28433056 888463360 10571 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/31283/statm: 216910 10571 2656 9 0 211346 0
[pid=31283/tid=31285] ppid=31281 vsize=867640 CPUtime=0.68
/proc/31283/task/31285/stat : 31285 (java) R 31281 31283 28460 0 -1 64 12138 293 1 0 61 7 0 0 25 0 9 0 28433058 888463360 10571 996147200 134512640 134550932 4294955968 18446744073709551615 4125965506 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=31283/tid=31286] ppid=31281 vsize=867640 CPUtime=0.04
/proc/31283/task/31286/stat : 31286 (java) S 31281 31283 28460 0 -1 64 2530 293 0 0 4 0 0 0 16 0 9 0 28433059 888463360 10571 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 0 0 0
[pid=31283/tid=31287] ppid=31281 vsize=867640 CPUtime=0
/proc/31283/task/31287/stat : 31287 (java) S 31281 31283 28460 0 -1 64 18 293 0 0 0 0 0 0 16 0 9 0 28433060 888463360 10571 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=31283/tid=31288] ppid=31281 vsize=867640 CPUtime=0
/proc/31283/task/31288/stat : 31288 (java) S 31281 31283 28460 0 -1 64 11 293 0 0 0 0 0 0 15 0 9 0 28433060 888463360 10571 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=31283/tid=31289] ppid=31281 vsize=867640 CPUtime=0
/proc/31283/task/31289/stat : 31289 (java) S 31281 31283 28460 0 -1 64 1 293 0 0 0 0 0 0 25 0 9 0 28433062 888463360 10571 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=31283/tid=31290] ppid=31281 vsize=867640 CPUtime=0.2
/proc/31283/task/31290/stat : 31290 (java) S 31281 31283 28460 0 -1 64 732 293 0 0 19 1 0 0 15 0 9 0 28433062 888463360 10571 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=31283/tid=31291] ppid=31281 vsize=867640 CPUtime=0
/proc/31283/task/31291/stat : 31291 (java) S 31281 31283 28460 0 -1 64 1 293 0 0 0 0 0 0 25 0 9 0 28433062 888463360 10571 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=31283/tid=31292] ppid=31281 vsize=867640 CPUtime=0
/proc/31283/task/31292/stat : 31292 (java) S 31281 31283 28460 0 -1 64 6 293 0 0 0 0 0 0 15 0 9 0 28433062 888463360 10571 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 0.96
Current children cumulated vsize (KiB) 867640

Child status: 0
Real time (s): 1.05232
CPU time (s): 0.988849
CPU user time (s): 0.866868
CPU system time (s): 0.121981
CPU usage (%): 93.9684
Max. virtual memory (cumulated for all children) (KiB): 867640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.866868
system time used= 0.121981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16643
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= 1131
involuntary context switches= 1153

runsolver used 0.004999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node8 at 2009-07-12 17:47:38
IDJOB=2097615
IDBENCH=57567
IDSOLVER=773
FILE ID=node8/2097615-1247413658
PBS_JOBID= 9510627
Free space on /tmp= 66288 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-15.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= BIN/runsolver --timestamp -w /tmp/evaluation-result-2097615-1247413658/watcher-2097615-1247413658 -o /tmp/evaluation-result-2097615-1247413658/solver-2097615-1247413658 -C 1800 -W 2000 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-2097615-1247413658.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= b3b5e0407ff63c54b23fa4bc60010aed
RANDOM SEED=1927203828

node8.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		: 3000.213
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		: 3000.213
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:       1661968 kB
Buffers:         42772 kB
Cached:         145452 kB
SwapCached:          0 kB
Active:         238172 kB
Inactive:        97912 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1661968 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2104 kB
Writeback:           0 kB
Mapped:         168364 kB
Slab:            42580 kB
Committed_AS:   990012 kB
PageTables:       2016 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66284 MiB
End job on node8 at 2009-07-12 17:47:39