Trace number 2098449

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 1.13883 1.19421

DiagnosticValue
CHECKS107341
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 benchmark0.033994
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 

0.03/0.08	
0.03/0.08	Abscon 112 (May, 2008)
0.18/0.22	
0.18/0.22	   configuration
0.18/0.22	     name=mac.xml
0.29/0.30	   
0.29/0.30	   instance
0.29/0.30	     name=HOME/instance-2098449-1247415621.xml
0.29/0.33	   
0.29/0.33	   domains being loaded...
0.29/0.34	   
0.29/0.34	   variables being loaded...
0.29/0.36	     nbVariables=32  nbDomainTypes=1  minDomainSize=32  maxDomainSize=32  nbTotalValues=1024
0.29/0.36	       =>  wckTime=0.139  cpuTime=0.1  mem=7M892
0.29/0.36	   
0.29/0.36	   predicates being loaded...
0.38/0.43	   
0.38/0.43	   constraints being loaded...
0.77/0.82	     nbConstraints=497  nbGlobalConstraints=1  nbMergedConstraints=24  nbConvertedConstraints=496
0.77/0.82	     nbConvertConstraintsChecks=9216  nbExtensionStructures=9  nbSharedExtensionStructures=487  nbConflictsStructures=9
0.77/0.82	     nbSharedConflictsStructures=487  nbSharedBinaryRepresentations=511  minDegree=32  maxDegree=32  minArity=2
0.77/0.82	     avgArity=2.06  maxArity=32  nbGenerators=0  nbFusions=0  symmetryWckTime=0.074  symmetryCpuTime=0.04  nbCliques=1
0.77/0.82	       =>  wckTime=0.591  cpuTime=0.41  mem=16M727
0.77/0.87	   
0.77/0.87	   solver IterativeSystematicSolver being built... 
0.87/0.93	   
0.87/0.93	   INFO : Forward propagation technique limited 
0.87/0.99	       =>  wckTime=0.766  cpuTime=0.51  mem=19M969
0.97/1.01	   
0.97/1.01	   preprocessing
0.97/1.01	     nbConstraintChecks=1784  nbPropagations=56  nbRevisions=64  nbUselessRevisions=0  nbRemovedValues=528
0.97/1.01	     detectedInconsistency=no
0.97/1.01	       =>  wckTime=0.017  cpuTime=0.01  mem=19M969
1.08/1.13	   
1.08/1.13	   search
1.08/1.13	     run=2  nbConstraintChecks=105557  minDepth=0  maxDepth=12  nbPropagations=5325  nbRevisions=31355
1.08/1.13	     nbUselessRevisions=23742  nbAssignments=172  nbFailedAssignments=36  nbBacktracks=117  nbVisitedNodes=229
1.08/1.13	     nbRestartNogoods=7  mapSize=30  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0  nbREliminables=0
1.08/1.13	     nbIEliminables=30.12  nbDEliminables=0  nbPEliminables=0
1.08/1.13	       =>  wckTime=0.14  cpuTime=0.09  mem=21M927
1.08/1.14	   
1.08/1.14	   global
1.08/1.14	     nbConstraintChecks=107341  nbPropagations=5381  nbRevisions=31419  nbUselessRevisions=23742  nbRestartNogoods=7
1.08/1.14	     solvingWckTime=0.142  solvingCpuTime=0.09  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
1.08/1.14	     globalCpuTime=0.65
1.08/1.14	       =>  wckTime=0.91  cpuTime=0.61  mem=21M927
1.08/1.14	   
1.08/1.14	s UNSATISFIABLE
1.08/1.14	d NODES 172
1.08/1.14	d CHECKS 107341
1.08/1.14	   
1.08/1.14	   totalWckTime=0.963  totalCpuTime=0.65

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2098449-1247415621/watcher-2098449-1247415621 -o /tmp/evaluation-result-2098449-1247415621/solver-2098449-1247415621 -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-2098449-1247415621.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: 1.85 1.97 1.99 4/80 30633
/proc/meminfo: memFree=1739504/2055920 swapFree=4192812/4192956
[pid=30633] ppid=30631 vsize=1612 CPUtime=0
/proc/30633/stat : 30633 (java) R 30631 30633 30596 0 -1 0 147 0 0 0 0 0 0 0 18 0 1 0 28626593 1650688 120 996147200 134512640 134550932 4294956128 18446744073709551615 4294960144 0 2147483391 4096 0 0 0 0 17 0 0 0
/proc/30633/statm: 403 120 95 9 0 45 0

[startup+0.0408879 s]
/proc/loadavg: 1.85 1.97 1.99 4/80 30633
/proc/meminfo: memFree=1739504/2055920 swapFree=4192812/4192956
[pid=30633] ppid=30631 vsize=861936 CPUtime=0.03
/proc/30633/stat : 30633 (java) S 30631 30633 30596 0 -1 0 2274 0 1 0 1 2 0 0 18 0 5 0 28626593 882622464 1877 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800971 18446744073709551615 0 0 17 1 0 0
/proc/30633/statm: 215484 1877 861 9 0 210399 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 861936

[startup+0.101584 s]
/proc/loadavg: 1.85 1.97 1.99 4/80 30633
/proc/meminfo: memFree=1739504/2055920 swapFree=4192812/4192956
[pid=30633] ppid=30631 vsize=865984 CPUtime=0.08
/proc/30633/stat : 30633 (java) S 30631 30633 30596 0 -1 0 3852 0 1 0 6 2 0 0 18 0 9 0 28626593 886767616 3295 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30633/statm: 216496 3295 1730 9 0 210981 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865984

[startup+0.301606 s]
/proc/loadavg: 1.85 1.97 1.99 4/80 30633
/proc/meminfo: memFree=1739504/2055920 swapFree=4192812/4192956
[pid=30633] ppid=30631 vsize=866376 CPUtime=0.29
/proc/30633/stat : 30633 (java) S 30631 30633 30596 0 -1 0 5821 0 1 0 24 5 0 0 18 0 9 0 28626593 887169024 5197 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30633/statm: 216594 5197 1976 9 0 211052 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866376

[startup+0.701653 s]
/proc/loadavg: 1.85 1.97 1.99 4/80 30633
/proc/meminfo: memFree=1739504/2055920 swapFree=4192812/4192956
[pid=30633] ppid=30631 vsize=867156 CPUtime=0.68
/proc/30633/stat : 30633 (java) S 30631 30633 30596 0 -1 0 8186 0 1 0 61 7 0 0 18 0 9 0 28626593 887967744 7538 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30633/statm: 216789 7538 2037 9 0 211225 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867156

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

[startup+1.1067 s]
/proc/loadavg: 1.85 1.97 1.99 3/89 30646
/proc/meminfo: memFree=1708328/2055920 swapFree=4192812/4192956
[pid=30633] ppid=30631 vsize=867604 CPUtime=1.08
/proc/30633/stat : 30633 (java) S 30631 30633 30596 0 -1 0 16325 299 1 0 96 12 0 0 18 0 9 0 28626593 888426496 10603 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/30633/statm: 216901 10603 2657 9 0 211337 0
[pid=30633/tid=30635] ppid=30631 vsize=867604 CPUtime=0.77
/proc/30633/task/30635/stat : 30635 (java) R 30631 30633 30596 0 -1 64 12182 299 1 0 68 9 0 0 22 0 9 0 28626594 888426496 10603 996147200 134512640 134550932 4294955968 18446744073709551615 4126967729 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=30633/tid=30636] ppid=30631 vsize=867604 CPUtime=0.04
/proc/30633/task/30636/stat : 30636 (java) S 30631 30633 30596 0 -1 64 2555 299 0 0 4 0 0 0 16 0 9 0 28626596 888426496 10603 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 0 0 0
[pid=30633/tid=30637] ppid=30631 vsize=867604 CPUtime=0
/proc/30633/task/30637/stat : 30637 (java) S 30631 30633 30596 0 -1 64 16 299 0 0 0 0 0 0 16 0 9 0 28626596 888426496 10603 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=30633/tid=30638] ppid=30631 vsize=867604 CPUtime=0
/proc/30633/task/30638/stat : 30638 (java) S 30631 30633 30596 0 -1 64 12 299 0 0 0 0 0 0 16 0 9 0 28626596 888426496 10603 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=30633/tid=30639] ppid=30631 vsize=867604 CPUtime=0
/proc/30633/task/30639/stat : 30639 (java) S 30631 30633 30596 0 -1 64 2 299 0 0 0 0 0 0 18 0 9 0 28626598 888426496 10603 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30633/tid=30640] ppid=30631 vsize=867604 CPUtime=0.22
/proc/30633/task/30640/stat : 30640 (java) S 30631 30633 30596 0 -1 64 750 299 0 0 22 0 0 0 16 0 9 0 28626598 888426496 10603 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=30633/tid=30641] ppid=30631 vsize=867604 CPUtime=0
/proc/30633/task/30641/stat : 30641 (java) S 30631 30633 30596 0 -1 64 1 299 0 0 0 0 0 0 19 0 9 0 28626598 888426496 10603 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=30633/tid=30642] ppid=30631 vsize=867604 CPUtime=0
/proc/30633/task/30642/stat : 30642 (java) S 30631 30633 30596 0 -1 64 4 299 0 0 0 0 0 0 15 0 9 0 28626598 888426496 10603 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.08
Current children cumulated vsize (KiB) 867604

Child status: 0
Real time (s): 1.19421
CPU time (s): 1.13883
CPU user time (s): 1.00285
CPU system time (s): 0.135979
CPU usage (%): 95.3624
Max. virtual memory (cumulated for all children) (KiB): 867604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.00285
system time used= 0.135979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16747
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= 965
involuntary context switches= 982

runsolver used 0.007998 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node75 at 2009-07-12 18:20:21
IDJOB=2098449
IDBENCH=58657
IDSOLVER=773
FILE ID=node75/2098449-1247415621
PBS_JOBID= 9510653
Free space on /tmp= 66316 MiB

SOLVER NAME= Abscon 112v4 AC
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 mac.xml 1 XSax BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2098449-1247415621/watcher-2098449-1247415621 -o /tmp/evaluation-result-2098449-1247415621/solver-2098449-1247415621 -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-2098449-1247415621.xml

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

MD5SUM BENCH= e02ab284be8165bbf8650c2ca610d92a
RANDOM SEED=933678867

node75.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		: 3000.232
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		: 3000.232
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:       1739984 kB
Buffers:         40536 kB
Cached:         126200 kB
SwapCached:          0 kB
Active:         188752 kB
Inactive:        73744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1739984 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2244 kB
Writeback:           0 kB
Mapped:         116188 kB
Slab:            38588 kB
Committed_AS:  1036372 kB
PageTables:       1976 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= 66316 MiB
End job on node75 at 2009-07-12 18:20:23