Trace number 218957

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, and are wall clock time (not CPU 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 109 ACUNSAT 1.54976 1.59161

DiagnosticValue
CHECKS76085
NODES3388

General information on the benchmark

NamechessboardColoration/
cc-8-8-2.xml
MD5SUM4cb14a14b9ffd06a9e1ae9114d8e69f5
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.12498
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables64
Number of constraints784
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension784
Global constraints used (with number of constraints)

Solver Data (download as text)

0.29	   
0.29	Abscon 109 (November, 2006)
0.29	   
0.29	   configuration
0.29	     name=mac.xml
0.32	   
0.32	   instance
0.32	     name=/tmp/evaluation/218957-1168079749/unknown.xml
0.35	   
0.35	   domains being loaded...
0.35	   
0.35	   variables being loaded...
0.38	     nbVariables=64  nbDomainTypes=1  minDomainSize=2  maxDomainSize=2
0.38	       =>  wckTime=0.088  cpuTime=0.07  mem=6M951
0.38	   
0.38	   predicates being loaded...
0.38	   
0.38	   constraints being loaded...
0.71	     nbConstraints=784  nbConflictsStructures=1  nbSharedConflictsStructures=783  nbSharedBinaryRepresentations=0
0.71	     nbEvaluationManagers=1  nbSharedEvaluationManagers=783  maxDegree=49  maxArity=4
0.71	       =>  wckTime=0.421  cpuTime=0.31  mem=22M554
0.76	   
0.76	   solver IterativeSystematicSolver being built... 
0.95	       =>  wckTime=0.657  cpuTime=0.46  mem=20M4
0.96	   
0.96	   preprocessing
0.96	     nbConstraintChecks=0  nbPropagations=64  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
0.96	     detectedInconsistency=no
0.96	       =>  wckTime=0.013  cpuTime=0.0  mem=20M4
1.00	   
1.00	   search
1.00	     run=0  nbConstraintChecks=725  nbValidityChecks=187  nbPropagations=103  nbRevisions=484  nbUselessRevisions=410
1.00	     nbAssignments=29  nbFailedAssignments=7  nbBacktracks=14  nbVisitedNodes=38  nbRestartNogoods=0  mapSize=7
1.00	     nbInferences=0  nbTooLargeKeys=0
1.00	       =>  wckTime=0.048  cpuTime=0.03  mem=20M996
1.02	   
1.02	   search
1.02	     run=1  nbConstraintChecks=1432  nbValidityChecks=859  nbPropagations=263  nbRevisions=1523  nbUselessRevisions=1313
1.02	     nbAssignments=70  nbFailedAssignments=12  nbBacktracks=37  nbVisitedNodes=88  nbRestartNogoods=1  mapSize=15
1.02	     nbInferences=0  nbTooLargeKeys=0
1.02	       =>  wckTime=0.077  cpuTime=0.04  mem=20M996
1.05	   
1.05	   search
1.05	     run=2  nbConstraintChecks=3539  nbValidityChecks=3403  nbPropagations=561  nbRevisions=4740
1.05	     nbUselessRevisions=4130  nbAssignments=128  nbFailedAssignments=25  nbBacktracks=74  nbVisitedNodes=168
1.05	     nbRestartNogoods=2  mapSize=36  nbInferences=0  nbTooLargeKeys=0
1.05	       =>  wckTime=0.101  cpuTime=0.05  mem=20M996
1.06	   
1.06	   search
1.06	     run=3  nbConstraintChecks=4324  nbValidityChecks=4484  nbPropagations=974  nbRevisions=8634
1.06	     nbUselessRevisions=7481  nbAssignments=186  nbFailedAssignments=41  nbBacktracks=112  nbVisitedNodes=251
1.06	     nbRestartNogoods=3  mapSize=59  nbInferences=0  nbTooLargeKeys=0
1.06	       =>  wckTime=0.112  cpuTime=0.06  mem=20M996
1.07	   
1.07	   search
1.07	     run=4  nbConstraintChecks=5102  nbValidityChecks=5633  nbPropagations=1503  nbRevisions=13299
1.07	     nbUselessRevisions=11475  nbAssignments=257  nbFailedAssignments=52  nbBacktracks=166  nbVisitedNodes=344
1.07	     nbRestartNogoods=5  mapSize=78  nbInferences=0  nbTooLargeKeys=0
1.07	       =>  wckTime=0.123  cpuTime=0.07  mem=20M996
1.09	   
1.09	   search
1.09	     run=5  nbConstraintChecks=7203  nbValidityChecks=8654  nbPropagations=2295  nbRevisions=19863
1.09	     nbUselessRevisions=17069  nbAssignments=360  nbFailedAssignments=76  nbBacktracks=242  nbVisitedNodes=489
1.09	     nbRestartNogoods=8  mapSize=118  nbInferences=0  nbTooLargeKeys=0
1.09	       =>  wckTime=0.145  cpuTime=0.09  mem=20M996
1.13	   
1.13	   search
1.13	     run=6  nbConstraintChecks=10626  nbValidityChecks=13993  nbPropagations=3506  nbRevisions=29884
1.13	     nbUselessRevisions=25591  nbAssignments=525  nbFailedAssignments=119  nbBacktracks=356  nbVisitedNodes=720
1.13	     nbRestartNogoods=10  mapSize=180  nbInferences=0  nbTooLargeKeys=0
1.13	       =>  wckTime=0.18  cpuTime=0.12  mem=20M996
1.17	   
1.17	   search
1.17	     run=7  nbConstraintChecks=14766  nbValidityChecks=20353  nbPropagations=5199  nbRevisions=43868
1.17	     nbUselessRevisions=37522  nbAssignments=743  nbFailedAssignments=157  nbBacktracks=526  nbVisitedNodes=1009
1.17	     nbRestartNogoods=14  mapSize=247  nbInferences=0  nbTooLargeKeys=0
1.17	       =>  wckTime=0.219  cpuTime=0.16  mem=20M996
1.22	   
1.22	   search
1.22	     run=8  nbConstraintChecks=21284  nbValidityChecks=30577  nbPropagations=7611  nbRevisions=64406
1.22	     nbUselessRevisions=55166  nbAssignments=1058  nbFailedAssignments=209  nbBacktracks=783  nbVisitedNodes=1425
1.22	     nbRestartNogoods=18  mapSize=345  nbInferences=0  nbTooLargeKeys=0
1.22	       =>  wckTime=0.269  cpuTime=0.2  mem=20M996
1.30	   
1.30	   search
1.30	     run=9  nbConstraintChecks=31836  nbValidityChecks=46519  nbPropagations=11225  nbRevisions=94883
1.30	     nbUselessRevisions=81335  nbAssignments=1545  nbFailedAssignments=295  nbBacktracks=1176  nbVisitedNodes=2085
1.30	     nbRestartNogoods=21  mapSize=513  nbInferences=0  nbTooLargeKeys=0
1.30	       =>  wckTime=0.353  cpuTime=0.27  mem=20M996
1.41	   
1.41	   search
1.41	     run=10  nbConstraintChecks=49250  nbValidityChecks=73971  nbPropagations=16896  nbRevisions=143083
1.41	     nbUselessRevisions=122757  nbAssignments=2275  nbFailedAssignments=430  nbBacktracks=1761  nbVisitedNodes=3096
1.41	     nbRestartNogoods=26  mapSize=790  nbInferences=0  nbTooLargeKeys=0
1.41	       =>  wckTime=0.463  cpuTime=0.37  mem=20M996
1.49	   
1.49	   INFO : Stopping hyperNogood (mapSize=1011, nbTooLargekeys=0, mem=20M996)
1.54	   
1.54	   search
1.54	     run=11  nbConstraintChecks=74792  nbValidityChecks=115408  nbPropagations=25532  nbRevisions=218283
1.54	     nbUselessRevisions=187640  nbAssignments=3332  nbFailedAssignments=612  nbBacktracks=2628  nbVisitedNodes=4531
1.54	     nbRestartNogoods=29
1.54	       =>  wckTime=0.592  cpuTime=0.49  mem=20M996
1.55	   
1.55	   search
1.55	     run=12  nbConstraintChecks=76085  nbValidityChecks=117463  nbPropagations=34315  nbRevisions=294785
1.55	     nbUselessRevisions=253657  nbAssignments=3388  nbFailedAssignments=622  nbBacktracks=2675  nbVisitedNodes=4604
1.55	     nbRestartNogoods=34
1.55	       =>  wckTime=0.599  cpuTime=0.5  mem=20M996
1.55	   
1.55	   global
1.55	     nbConstraintChecks=76085  nbValidityChecks=117463  nbPropagations=34379  nbRevisions=294785
1.55	     nbUselessRevisions=253657  nbRestartNogoods=34  solvingWckTime=0.6  solvingCpuTime=0.5  expiredTime=no
1.55	     totalExploration=yes  nbFoundSolutions=0  globalCpuTime=1.0
1.55	       =>  wckTime=1.259  cpuTime=0.96  mem=20M996
1.55	   
1.55	s UNSATISFIABLE
1.55	d NODES 3388
1.55	d CHECKS 76085
1.55	   
1.55	   totalWckTime=1.334  totalCpuTime=1.0

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node55/watcher-218957-1168079749 -o ROOT/results/node55/solver-218957-1168079749 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/218957-1168079749/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 1.67 1.37 1.14 4/80 12223
/proc/meminfo: memFree=1225056/2055920 swapFree=4192812/4192956
[pid=12222] ppid=12220 vsize=1788 CPUtime=0
/proc/12222/stat : 12222 (java) R 12220 12222 11855 0 -1 0 367 0 0 0 0 0 0 0 18 0 1 0 156373517 1830912 159 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/12222/statm: 446 158 123 14 0 91 0

[startup+0.107464 s]
/proc/loadavg: 1.67 1.37 1.14 4/80 12223
/proc/meminfo: memFree=1225056/2055920 swapFree=4192812/4192956
[pid=12222] ppid=12220 vsize=914988 CPUtime=0.09
/proc/12222/stat : 12222 (java) R 12220 12222 11855 0 -1 0 3118 0 1 0 8 1 0 0 24 0 8 0 156373517 936947712 2864 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4153785378 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/12222/statm: 228747 2864 1468 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.515503 s]
/proc/loadavg: 1.67 1.37 1.14 4/80 12223
/proc/meminfo: memFree=1225056/2055920 swapFree=4192812/4192956
[pid=12222] ppid=12220 vsize=915328 CPUtime=0.49
/proc/12222/stat : 12222 (java) R 12220 12222 11855 0 -1 0 7765 0 1 0 45 4 0 0 25 0 8 0 156373517 937295872 7504 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4073555310 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/12222/statm: 228832 7506 2144 14 0 215302 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915328

[startup+1.33658 s]
/proc/loadavg: 1.67 1.37 1.14 3/87 12230
/proc/meminfo: memFree=1193000/2055920 swapFree=4192812/4192956
[pid=12222] ppid=12220 vsize=915576 CPUtime=1.32
/proc/12222/stat : 12222 (java) R 12220 12222 11855 0 -1 0 10762 0 1 0 122 10 0 0 25 0 8 0 156373517 937549824 10500 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4073917528 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/12222/statm: 228894 10500 2532 14 0 215364 0
[pid=12222/tid=12224] ppid=12220 vsize=915576 CPUtime=0.03
/proc/12222/task/12224/stat : 12224 (java) S 12220 12222 11855 0 -1 64 310 0 0 0 3 0 0 0 16 0 8 0 156373520 937549824 10500 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 0 0 0
[pid=12222/tid=12225] ppid=12220 vsize=915576 CPUtime=0
/proc/12222/task/12225/stat : 12225 (java) S 12220 12222 11855 0 -1 64 11 0 0 0 0 0 0 0 16 0 8 0 156373520 937549824 10500 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=12222/tid=12226] ppid=12220 vsize=915576 CPUtime=0
/proc/12222/task/12226/stat : 12226 (java) S 12220 12222 11855 0 -1 64 5 0 0 0 0 0 0 0 15 0 8 0 156373521 937549824 10500 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=12222/tid=12227] ppid=12220 vsize=915576 CPUtime=0
/proc/12222/task/12227/stat : 12227 (java) S 12220 12222 11855 0 -1 64 1 0 0 0 0 0 0 0 22 0 8 0 156373524 937549824 10500 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=12222/tid=12228] ppid=12220 vsize=915576 CPUtime=0.28
/proc/12222/task/12228/stat : 12228 (java) S 12220 12222 11855 0 -1 64 432 0 0 0 26 2 0 0 15 0 8 0 156373524 937549824 10500 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=12222/tid=12229] ppid=12220 vsize=915576 CPUtime=0
/proc/12222/task/12229/stat : 12229 (java) S 12220 12222 11855 0 -1 64 1 0 0 0 0 0 0 0 23 0 8 0 156373524 937549824 10500 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=12222/tid=12230] ppid=12220 vsize=915576 CPUtime=0
/proc/12222/task/12230/stat : 12230 (java) S 12220 12222 11855 0 -1 64 0 0 0 0 0 0 0 0 15 0 8 0 156373524 937549824 10500 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 915576

Child status: 0
Real time (s): 1.59161
CPU time (s): 1.54976
CPU user time (s): 1.44078
CPU system time (s): 0.108983
CPU usage (%): 97.3708
Max. virtual memory (cumulated for all children) (KiB): 915576

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.44078
system time used= 0.108983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10776
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= 1341
involuntary context switches= 1541

runsolver used 0.004999 s user time and 0.014997 s system time

The end

Launcher Data (download as text)

Begin job on node55 on Sat Jan  6 10:35:50 UTC 2007


IDJOB= 218957
IDBENCH= 5269
FILE ID= node55/218957-1168079749

PBS_JOBID= 3476134

Free space on /tmp= 66541 MiB

BENCH NAME= HOME/pub/bench/CPAI06/chessboardColoration/cc-8-8-2.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/218957-1168079749/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-218957-1168079749 -o ROOT/results/node55/solver-218957-1168079749 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/218957-1168079749/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  4cb14a14b9ffd06a9e1ae9114d8e69f5

RANDOM SEED= 825295410

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.218
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	: 5931.00
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		: 3000.218
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:       1225536 kB
Buffers:         55956 kB
Cached:         612008 kB
SwapCached:          0 kB
Active:         175024 kB
Inactive:       571976 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1225536 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1952 kB
Writeback:           0 kB
Mapped:          99280 kB
Slab:            68660 kB
Committed_AS:  3814212 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= 66541 MiB



End job on node55 on Sat Jan  6 10:35:55 UTC 2007