Trace number 218944

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 1.3068 1.39534

DiagnosticValue
CHECKS76111
NODES3571

General information on the benchmark

NamechessboardColoration/
cc-6-6-2.xml
MD5SUMa8c14c438e718ff6d9298db1d4701e5f
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 benchmark0.142978
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables36
Number of constraints225
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension225
Global constraints used (with number of constraints)

Solver Data (download as text)

0.36	   
0.36	Abscon 109 (November, 2006)
0.36	   
0.36	   configuration
0.36	     name=mac.xml
0.39	   
0.39	   instance
0.39	     name=/tmp/evaluation/218944-1168079746/unknown.xml
0.43	   
0.43	   domains being loaded...
0.44	   
0.44	   variables being loaded...
0.46	     nbVariables=36  nbDomainTypes=1  minDomainSize=2  maxDomainSize=2
0.46	       =>  wckTime=0.097  cpuTime=0.09  mem=6M951
0.46	   
0.46	   predicates being loaded...
0.47	   
0.47	   constraints being loaded...
0.65	     nbConstraints=225  nbConflictsStructures=1  nbSharedConflictsStructures=224  nbSharedBinaryRepresentations=0
0.65	     nbEvaluationManagers=1  nbSharedEvaluationManagers=224  maxDegree=25  maxArity=4
0.65	       =>  wckTime=0.283  cpuTime=0.2  mem=11M844
0.69	   
0.69	   solver IterativeSystematicSolver being built... 
0.87	       =>  wckTime=0.504  cpuTime=0.36  mem=15M453
0.88	   
0.88	   preprocessing
0.88	     nbConstraintChecks=0  nbPropagations=36  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
0.88	     detectedInconsistency=no
0.88	       =>  wckTime=0.0080  cpuTime=0.0  mem=15M453
0.91	   
0.91	   search
0.91	     run=0  nbConstraintChecks=320  nbValidityChecks=96  nbPropagations=65  nbRevisions=219  nbUselessRevisions=177
0.91	     nbAssignments=21  nbFailedAssignments=5  nbBacktracks=10  nbVisitedNodes=28  nbRestartNogoods=0  mapSize=5
0.91	     nbInferences=0  nbTooLargeKeys=0
0.91	       =>  wckTime=0.038  cpuTime=0.02  mem=16M445
0.94	   
0.94	   search
0.94	     run=1  nbConstraintChecks=808  nbValidityChecks=600  nbPropagations=183  nbRevisions=850  nbUselessRevisions=710
0.94	     nbAssignments=58  nbFailedAssignments=10  nbBacktracks=33  nbVisitedNodes=74  nbRestartNogoods=1  mapSize=13
0.94	     nbInferences=0  nbTooLargeKeys=0
0.94	       =>  wckTime=0.066  cpuTime=0.03  mem=16M445
0.96	   
0.96	   search
0.96	     run=2  nbConstraintChecks=1960  nbValidityChecks=2172  nbPropagations=404  nbRevisions=2643
0.96	     nbUselessRevisions=2252  nbAssignments=101  nbFailedAssignments=19  nbBacktracks=59  nbVisitedNodes=132
0.96	     nbRestartNogoods=2  mapSize=27  nbInferences=0  nbTooLargeKeys=0
0.96	       =>  wckTime=0.094  cpuTime=0.05  mem=16M445
0.97	   
0.97	   search
0.97	     run=3  nbConstraintChecks=2902  nbValidityChecks=3544  nbPropagations=743  nbRevisions=5351
0.97	     nbUselessRevisions=4569  nbAssignments=159  nbFailedAssignments=31  nbBacktracks=99  nbVisitedNodes=210
0.98	     nbRestartNogoods=3  mapSize=44  nbInferences=0  nbTooLargeKeys=0
0.98	       =>  wckTime=0.105  cpuTime=0.06  mem=16M445
0.99	   
0.99	   search
0.99	     run=4  nbConstraintChecks=3649  nbValidityChecks=4648  nbPropagations=1201  nbRevisions=8788
0.99	     nbUselessRevisions=7479  nbAssignments=226  nbFailedAssignments=42  nbBacktracks=151  nbVisitedNodes=298
0.99	     nbRestartNogoods=6  mapSize=63  nbInferences=0  nbTooLargeKeys=0
0.99	       =>  wckTime=0.115  cpuTime=0.07  mem=16M445
1.00	   
1.00	   search
1.00	     run=5  nbConstraintChecks=5071  nbValidityChecks=6945  nbPropagations=1856  nbRevisions=13846
1.00	     nbUselessRevisions=11775  nbAssignments=331  nbFailedAssignments=59  nbBacktracks=234  nbVisitedNodes=433
1.00	     nbRestartNogoods=8  mapSize=91  nbInferences=0  nbTooLargeKeys=0
1.00	       =>  wckTime=0.129  cpuTime=0.08  mem=16M445
1.02	   
1.02	   search
1.02	     run=6  nbConstraintChecks=7981  nbValidityChecks=11239  nbPropagations=2853  nbRevisions=21681
1.02	     nbUselessRevisions=18443  nbAssignments=480  nbFailedAssignments=89  nbBacktracks=349  nbVisitedNodes=637
1.02	     nbRestartNogoods=10  mapSize=144  nbInferences=0  nbTooLargeKeys=0
1.02	       =>  wckTime=0.151  cpuTime=0.1  mem=16M445
1.06	   
1.06	   search
1.06	     run=7  nbConstraintChecks=12671  nbValidityChecks=18709  nbPropagations=4414  nbRevisions=34418
1.06	     nbUselessRevisions=29322  nbAssignments=706  nbFailedAssignments=134  nbBacktracks=520  nbVisitedNodes=943
1.06	     nbRestartNogoods=12  mapSize=220  nbInferences=0  nbTooLargeKeys=0
1.06	       =>  wckTime=0.187  cpuTime=0.12  mem=16M445
1.10	   
1.10	   search
1.10	     run=8  nbConstraintChecks=19856  nbValidityChecks=29745  nbPropagations=6796  nbRevisions=54253
1.10	     nbUselessRevisions=46274  nbAssignments=1035  nbFailedAssignments=197  nbBacktracks=779  nbVisitedNodes=1394
1.10	     nbRestartNogoods=16  mapSize=338  nbInferences=0  nbTooLargeKeys=0
1.10	       =>  wckTime=0.226  cpuTime=0.17  mem=16M445
1.17	   
1.17	   search
1.17	     run=9  nbConstraintChecks=30331  nbValidityChecks=46251  nbPropagations=10376  nbRevisions=84872
1.17	     nbUselessRevisions=72539  nbAssignments=1511  nbFailedAssignments=281  nbBacktracks=1170  nbVisitedNodes=2034
1.17	     nbRestartNogoods=20  mapSize=501  nbInferences=0  nbTooLargeKeys=0
1.17	       =>  wckTime=0.3  cpuTime=0.22  mem=16M445
1.25	   
1.25	   search
1.25	     run=10  nbConstraintChecks=45274  nbValidityChecks=70478  nbPropagations=15739  nbRevisions=131420
1.25	     nbUselessRevisions=112638  nbAssignments=2222  nbFailedAssignments=402  nbBacktracks=1757  nbVisitedNodes=2981
1.25	     nbRestartNogoods=21  mapSize=735  nbInferences=0  nbTooLargeKeys=0
1.25	       =>  wckTime=0.38  cpuTime=0.28  mem=16M445
1.32	   
1.32	   INFO : Stopping hyperNogood (mapSize=1011, nbTooLargekeys=0, mem=16M445)
1.34	   
1.34	   search
1.34	     run=11  nbConstraintChecks=69170  nbValidityChecks=108017  nbPropagations=23847  nbRevisions=202412
1.34	     nbUselessRevisions=173922  nbAssignments=3280  nbFailedAssignments=584  nbBacktracks=2628  nbVisitedNodes=4405
1.34	     nbRestartNogoods=23
1.34	       =>  wckTime=0.466  cpuTime=0.37  mem=16M445
1.36	   
1.36	   search
1.36	     run=12  nbConstraintChecks=76111  nbValidityChecks=119075  nbPropagations=32798  nbRevisions=280683
1.36	     nbUselessRevisions=241520  nbAssignments=3571  nbFailedAssignments=636  nbBacktracks=2868  nbVisitedNodes=4801
1.36	     nbRestartNogoods=26
1.36	       =>  wckTime=0.491  cpuTime=0.39  mem=16M445
1.36	   
1.36	   global
1.36	     nbConstraintChecks=76111  nbValidityChecks=119075  nbPropagations=32834  nbRevisions=280683
1.36	     nbUselessRevisions=241520  nbRestartNogoods=26  solvingWckTime=0.492  solvingCpuTime=0.39  expiredTime=no
1.36	     totalExploration=yes  nbFoundSolutions=0  globalCpuTime=0.8
1.36	       =>  wckTime=0.998  cpuTime=0.75  mem=16M445
1.36	   
1.36	s UNSATISFIABLE
1.37	d NODES 3571
1.37	d CHECKS 76111
1.37	   
1.37	   totalWckTime=1.082  totalCpuTime=0.8

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/node13/watcher-218944-1168079746 -o ROOT/results/node13/solver-218944-1168079746 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/218944-1168079746/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: 1.71 1.93 1.97 4/93 6150
/proc/meminfo: memFree=511968/2055920 swapFree=4192812/4192956
[pid=6149] ppid=6147 vsize=1784 CPUtime=0
/proc/6149/stat : 6149 (java) D 6147 6149 6082 0 -1 0 169 0 0 0 0 0 0 0 18 0 1 0 156369620 1826816 140 18446744073709551615 134512640 134570532 4294956624 18446744073709551615 4294960144 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/6149/statm: 446 140 106 14 0 91 0

[startup+0.107764 s]
/proc/loadavg: 1.71 1.93 1.97 4/93 6150
/proc/meminfo: memFree=511968/2055920 swapFree=4192812/4192956
[pid=6149] ppid=6147 vsize=914988 CPUtime=0.09
/proc/6149/stat : 6149 (java) R 6147 6149 6082 0 -1 0 2995 0 1 0 7 2 0 0 17 0 8 0 156369620 936947712 2741 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4072934386 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/6149/statm: 228747 2741 1427 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.519818 s]
/proc/loadavg: 1.71 1.93 1.97 4/93 6150
/proc/meminfo: memFree=511968/2055920 swapFree=4192812/4192956
[pid=6149] ppid=6147 vsize=915328 CPUtime=0.45
/proc/6149/stat : 6149 (java) R 6147 6149 6082 0 -1 0 6282 0 1 0 41 4 0 0 18 0 8 0 156369620 937295872 6021 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4073543416 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/6149/statm: 228832 6021 2144 14 0 215302 0
Current children cumulated CPU time (s) 0.45
Current children cumulated vsize (KiB) 915328

[startup+1.34693 s]
/proc/loadavg: 1.71 1.93 1.97 3/100 6157
/proc/meminfo: memFree=486952/2055920 swapFree=4192812/4192956
[pid=6149] ppid=6147 vsize=915456 CPUtime=1.27
/proc/6149/stat : 6149 (java) R 6147 6149 6082 0 -1 0 9012 0 1 0 119 8 0 0 24 0 8 0 156369620 937426944 8750 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4073776396 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/6149/statm: 228864 8750 2532 14 0 215334 0
[pid=6149/tid=6151] ppid=6147 vsize=915456 CPUtime=0.02
/proc/6149/task/6151/stat : 6151 (java) S 6147 6149 6082 0 -1 64 163 0 0 0 2 0 0 0 16 0 8 0 156369624 937426944 8750 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0
[pid=6149/tid=6152] ppid=6147 vsize=915456 CPUtime=0
/proc/6149/task/6152/stat : 6152 (java) S 6147 6149 6082 0 -1 64 11 0 0 0 0 0 0 0 16 0 8 0 156369625 937426944 8750 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=6149/tid=6153] ppid=6147 vsize=915456 CPUtime=0
/proc/6149/task/6153/stat : 6153 (java) S 6147 6149 6082 0 -1 64 5 0 0 0 0 0 0 0 15 0 8 0 156369625 937426944 8750 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=6149/tid=6154] ppid=6147 vsize=915456 CPUtime=0
/proc/6149/task/6154/stat : 6154 (java) S 6147 6149 6082 0 -1 64 1 0 0 0 0 0 0 0 18 0 8 0 156369628 937426944 8750 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=6149/tid=6155] ppid=6147 vsize=915456 CPUtime=0.25
/proc/6149/task/6155/stat : 6155 (java) S 6147 6149 6082 0 -1 64 385 0 0 0 24 1 0 0 15 0 8 0 156369628 937426944 8750 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=6149/tid=6156] ppid=6147 vsize=915456 CPUtime=0
/proc/6149/task/6156/stat : 6156 (java) S 6147 6149 6082 0 -1 64 0 0 0 0 0 0 0 0 19 0 8 0 156369628 937426944 8750 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=6149/tid=6157] ppid=6147 vsize=915456 CPUtime=0
/proc/6149/task/6157/stat : 6157 (java) S 6147 6149 6082 0 -1 64 1 0 0 0 0 0 0 0 15 0 8 0 156369628 937426944 8750 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.27
Current children cumulated vsize (KiB) 915456

Child status: 0
Real time (s): 1.39534
CPU time (s): 1.3068
CPU user time (s): 1.21481
CPU system time (s): 0.091986
CPU usage (%): 93.6548
Max. virtual memory (cumulated for all children) (KiB): 915456

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.21481
system time used= 0.091986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9105
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= 1182
involuntary context switches= 1388

runsolver used 0.004999 s user time and 0.013997 s system time

The end

Launcher Data (download as text)

Begin job on node13 on Sat Jan  6 10:35:46 UTC 2007


IDJOB= 218944
IDBENCH= 5268
FILE ID= node13/218944-1168079746

PBS_JOBID= 3475844

Free space on /tmp= 66314 MiB

BENCH NAME= HOME/pub/bench/CPAI06/chessboardColoration/cc-6-6-2.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/218944-1168079746/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-218944-1168079746 -o ROOT/results/node13/solver-218944-1168079746 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/218944-1168079746/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  a8c14c438e718ff6d9298db1d4701e5f

RANDOM SEED= 525844507

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		: 3000.247
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		: 3000.247
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:        512448 kB
Buffers:         71312 kB
Cached:         557008 kB
SwapCached:          0 kB
Active:        1159092 kB
Inactive:       287732 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        512448 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1968 kB
Writeback:           0 kB
Mapped:         847488 kB
Slab:            79796 kB
Committed_AS:  4435472 kB
PageTables:       3944 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= 66314 MiB



End job on node13 on Sat Jan  6 10:35:48 UTC 2007