Trace number 1044650

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 0.934856 0.940625

DiagnosticValue
CHECKS575
NODES24

General information on the benchmark

Namecsp/QG4/
normalized-quasigroup4-4.xml
MD5SUM98631e75f91f35536ed048831d4580fc
Bench CategoryGLOBAL (global constraints)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.008997
Satisfiable
(Un)Satisfiability was proved
Number of variables52
Number of constraints39
Maximum constraint arity18
Maximum domain size16
Number of constraints which are defined in extension0
Number of constraints which are defined in intension15
Global constraints used (with number of constraints)alldifferent(8),element(16)

Solver Data (download as text)

0.04/0.08	
0.04/0.08	Abscon 112 (May, 2008)
0.19/0.24	
0.19/0.24	   configuration
0.19/0.24	     name=mac.xml
0.19/0.28	   
0.19/0.28	   instance
0.19/0.28	     name=HOME/instance-1044650-1215028307.xml
0.29/0.31	   
0.29/0.31	   domains being loaded...
0.29/0.32	   
0.29/0.32	   variables being loaded...
0.29/0.36	     nbVariables=52  nbDomainTypes=12  minDomainSize=1  maxDomainSize=16  nbTotalValues=349
0.29/0.36	       =>  wckTime=0.11  cpuTime=0.1  mem=7M919
0.29/0.36	   
0.29/0.36	   predicates being loaded...
0.38/0.42	   
0.38/0.42	   constraints being loaded...
0.59/0.66	     nbConstraints=279  nbUnaryConstraints=3  nbGlobalConstraints=11  nbSingletonDomainVariables=23  nbPurgedValues=45
0.59/0.66	     nbDisconnectedVariables=4  nbConflictsStructures=86  nbSharedConflictsStructures=182
0.59/0.66	     nbSharedBinaryRepresentations=0  nbEvaluationManagers=86  nbSharedEvaluationManagers=182  minDegree=1  maxDegree=20
0.59/0.66	     minArity=2  avgArity=2.99  maxArity=3  nbGenerators=3  nbFusions=0  symmetryWckTime=0.062  symmetryCpuTime=0.04
0.59/0.66	       =>  wckTime=0.409  cpuTime=0.3  mem=16M835
0.68/0.73	   
0.68/0.73	   solver IterativeSystematicSolver being built... 
0.78/0.81	   
0.78/0.82	   INFO : Forward propagation technique limited 
0.78/0.88	       =>  wckTime=0.633  cpuTime=0.44  mem=22M592
0.88/0.90	   
0.88/0.90	   preprocessing
0.88/0.90	     nbConstraintChecks=522  nbValidityChecks=24  nbPropagations=52  nbRevisions=152  nbUselessRevisions=24
0.88/0.90	     nbRemovedValues=176  detectedInconsistency=no
0.88/0.90	       =>  wckTime=0.018  cpuTime=0.01  mem=22M592
0.88/0.92	   
0.88/0.92	   search
0.88/0.92	     run=0  nbConstraintChecks=53  nbValidityChecks=50  minDepth=23  maxDepth=23  nbPropagations=83  nbRevisions=446
0.88/0.92	     nbUselessRevisions=292  nbAssignments=24  nbFailedAssignments=1  nbBacktracks=1  nbVisitedNodes=26
0.88/0.92	     nbRestartNogoods=0  mapSize=1  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0  nbREliminables=36
0.88/0.92	     nbIEliminables=16  nbDEliminables=0  nbPEliminables=0
0.88/0.92	       =>  wckTime=0.042  cpuTime=0.03  mem=23M567
0.88/0.92	   
0.88/0.92	   global
0.88/0.92	     nbConstraintChecks=575  nbValidityChecks=74  nbPropagations=135  nbRevisions=598  nbUselessRevisions=316
0.88/0.92	     nbRestartNogoods=0  solvingWckTime=0.044  solvingCpuTime=0.03  expiredTime=no  totalExploration=yes
0.88/0.92	     nbFoundSolutions=0  globalCpuTime=0.51
0.88/0.92	       =>  wckTime=0.678  cpuTime=0.47  mem=23M567
0.88/0.93	   
0.88/0.93	s UNSATISFIABLE
0.88/0.93	d NODES 24
0.88/0.93	d CHECKS 575
0.88/0.93	   
0.88/0.93	   totalWckTime=0.746  totalCpuTime=0.52

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-1044650-1215028307/watcher-1044650-1215028307 -o /tmp/evaluation-result-1044650-1215028307/solver-1044650-1215028307 -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-1044650-1215028307.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: 2.07 2.02 2.02 4/72 9744
/proc/meminfo: memFree=1390624/2055920 swapFree=4180052/4192956
[pid=9744] ppid=9742 vsize=1608 CPUtime=0
/proc/9744/stat : 9744 (java) R 9742 9744 8386 0 -1 0 299 0 0 0 0 0 0 0 18 0 1 0 1981805921 1646592 108 996147200 134512640 134550740 4294955984 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/9744/statm: 403 113 89 9 0 45 0

[startup+0.049406 s]
/proc/loadavg: 2.07 2.02 2.02 4/72 9744
/proc/meminfo: memFree=1390624/2055920 swapFree=4180052/4192956
[pid=9744] ppid=9742 vsize=863776 CPUtime=0.04
/proc/9744/stat : 9744 (java) S 9742 9744 8386 0 -1 0 2525 0 1 0 2 2 0 0 18 0 9 0 1981805921 884506624 2086 996147200 134512640 134550740 4294955984 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/9744/statm: 215944 2087 973 9 0 210901 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 863776

[startup+0.101411 s]
/proc/loadavg: 2.07 2.02 2.02 4/72 9744
/proc/meminfo: memFree=1390624/2055920 swapFree=4180052/4192956
[pid=9744] ppid=9742 vsize=865884 CPUtime=0.09
/proc/9744/stat : 9744 (java) S 9742 9744 8386 0 -1 0 3731 0 1 0 6 3 0 0 18 0 9 0 1981805921 886665216 3195 996147200 134512640 134550740 4294955984 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/9744/statm: 216471 3196 1693 9 0 211026 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865884

[startup+0.301433 s]
/proc/loadavg: 2.07 2.02 2.02 4/72 9744
/proc/meminfo: memFree=1390624/2055920 swapFree=4180052/4192956
[pid=9744] ppid=9742 vsize=866284 CPUtime=0.29
/proc/9744/stat : 9744 (java) S 9742 9744 8386 0 -1 0 5884 0 1 0 24 5 0 0 18 0 9 0 1981805921 887074816 5258 996147200 134512640 134550740 4294955984 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/9744/statm: 216571 5259 1954 9 0 211099 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866284

[startup+0.701473 s]
/proc/loadavg: 2.07 2.02 2.02 4/72 9744
/proc/meminfo: memFree=1390624/2055920 swapFree=4180052/4192956
[pid=9744] ppid=9742 vsize=867228 CPUtime=0.68
/proc/9744/stat : 9744 (java) S 9742 9744 8386 0 -1 0 11784 175 1 0 60 8 0 0 18 0 10 0 1981805921 888041472 8628 996147200 134512640 134550740 4294955984 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/9744/statm: 216807 8628 2658 9 0 211313 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867228

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

[startup+0.901492 s]
/proc/loadavg: 2.07 2.02 2.02 4/72 9744
/proc/meminfo: memFree=1390624/2055920 swapFree=4180052/4192956
[pid=9744] ppid=9742 vsize=867228 CPUtime=0.88
/proc/9744/stat : 9744 (java) S 9742 9744 8386 0 -1 0 16265 298 1 0 78 10 0 0 18 0 9 0 1981805921 888041472 10740 996147200 134512640 134550740 4294955984 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/9744/statm: 216807 10740 2631 9 0 211313 0
Current children cumulated CPU time (s) 0.88
Current children cumulated vsize (KiB) 867228

Child status: 0
Real time (s): 0.940625
CPU time (s): 0.934856
CPU user time (s): 0.815875
CPU system time (s): 0.118981
CPU usage (%): 99.3867
Max. virtual memory (cumulated for all children) (KiB): 867228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.815875
system time used= 0.118981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16933
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= 826
involuntary context switches= 842

runsolver used 0.004999 second user time and 0.013997 second system time

The end

Launcher Data (download as text)

Begin job on node7 at 2008-07-02 21:51:47
IDJOB=1044650
IDBENCH=53918
IDSOLVER=363
FILE ID=node7/1044650-1215028307
PBS_JOBID= 7874455
Free space on /tmp= 66552 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/QG4/normalized-quasigroup4-4.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-1044650-1215028307/watcher-1044650-1215028307 -o /tmp/evaluation-result-1044650-1215028307/solver-1044650-1215028307 -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-1044650-1215028307.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 98631e75f91f35536ed048831d4580fc
RANDOM SEED=457231539

node7.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:       1391040 kB
Buffers:         73300 kB
Cached:         489920 kB
SwapCached:       7028 kB
Active:         201132 kB
Inactive:       384136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1391040 kB
SwapTotal:     4192956 kB
SwapFree:      4180052 kB
Dirty:            2632 kB
Writeback:           0 kB
Mapped:          30112 kB
Slab:            64832 kB
Committed_AS:  3415768 kB
PageTables:       1840 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= 66548 MiB
End job on node7 at 2008-07-02 21:51:49