Trace number 218931

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 2.25766 2.33429

DiagnosticValue
CHECKS78927
NODES3529

General information on the benchmark

NamechessboardColoration/
cc-10-10-2.xml
MD5SUMa92776cdff8557438c3e6ed66838915a
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 benchmark0.219966
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables100
Number of constraints2025
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension2025
Global constraints used (with number of constraints)

Solver Data (download as text)

0.32	   
0.32	Abscon 109 (November, 2006)
0.32	   
0.32	   configuration
0.32	     name=mac.xml
0.35	   
0.35	   instance
0.35	     name=/tmp/evaluation/218931-1168079746/unknown.xml
0.39	   
0.39	   domains being loaded...
0.39	   
0.39	   variables being loaded...
0.42	     nbVariables=100  nbDomainTypes=1  minDomainSize=2  maxDomainSize=2
0.43	       =>  wckTime=0.101  cpuTime=0.09  mem=6M951
0.43	   
0.43	   predicates being loaded...
0.43	   
0.43	   constraints being loaded...
1.04	     nbConstraints=2025  nbConflictsStructures=1  nbSharedConflictsStructures=2024  nbSharedBinaryRepresentations=0
1.04	     nbEvaluationManagers=1  nbSharedEvaluationManagers=2024  maxDegree=81  maxArity=4
1.04	       =>  wckTime=0.718  cpuTime=0.56  mem=45M958
1.11	   
1.12	   solver IterativeSystematicSolver being built... 
1.36	       =>  wckTime=1.032  cpuTime=0.75  mem=30M266
1.38	   
1.38	   preprocessing
1.38	     nbConstraintChecks=0  nbPropagations=100  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
1.38	     detectedInconsistency=no
1.38	       =>  wckTime=0.019  cpuTime=0.01  mem=31M240
1.44	   
1.44	   search
1.44	     run=0  nbConstraintChecks=1358  nbValidityChecks=306  nbPropagations=149  nbRevisions=885  nbUselessRevisions=771
1.44	     nbAssignments=37  nbFailedAssignments=9  nbBacktracks=18  nbVisitedNodes=48  nbRestartNogoods=0  mapSize=9
1.44	     nbInferences=0  nbTooLargeKeys=0
1.44	       =>  wckTime=0.083  cpuTime=0.05  mem=31M240
1.47	   
1.47	   search
1.47	     run=1  nbConstraintChecks=2288  nbValidityChecks=1146  nbPropagations=359  nbRevisions=2472
1.47	     nbUselessRevisions=2176  nbAssignments=82  nbFailedAssignments=14  nbBacktracks=41  nbVisitedNodes=102
1.47	     nbRestartNogoods=1  mapSize=17  nbInferences=0  nbTooLargeKeys=0
1.47	       =>  wckTime=0.111  cpuTime=0.07  mem=31M240
1.48	   
1.48	   search
1.48	     run=2  nbConstraintChecks=3062  nbValidityChecks=1955  nbPropagations=634  nbRevisions=4651
1.48	     nbUselessRevisions=4102  nbAssignments=127  nbFailedAssignments=24  nbBacktracks=65  nbVisitedNodes=159
1.48	     nbRestartNogoods=2  mapSize=27  nbInferences=0  nbTooLargeKeys=0
1.48	       =>  wckTime=0.124  cpuTime=0.08  mem=31M240
1.50	   
1.50	   search
1.50	     run=3  nbConstraintChecks=3748  nbValidityChecks=2925  nbPropagations=1009  nbRevisions=7503
1.50	     nbUselessRevisions=6572  nbAssignments=186  nbFailedAssignments=37  nbBacktracks=103  nbVisitedNodes=238
1.50	     nbRestartNogoods=4  mapSize=44  nbInferences=0  nbTooLargeKeys=0
1.50	       =>  wckTime=0.14  cpuTime=0.09  mem=31M240
1.52	   
1.52	   search
1.52	     run=4  nbConstraintChecks=4881  nbValidityChecks=4536  nbPropagations=1540  nbRevisions=11371
1.52	     nbUselessRevisions=9891  nbAssignments=264  nbFailedAssignments=54  nbBacktracks=156  nbVisitedNodes=343
1.52	     nbRestartNogoods=7  mapSize=69  nbInferences=0  nbTooLargeKeys=0
1.52	       =>  wckTime=0.16  cpuTime=0.12  mem=31M240
1.54	   
1.54	   search
1.54	     run=5  nbConstraintChecks=6427  nbValidityChecks=6834  nbPropagations=2251  nbRevisions=16707
1.54	     nbUselessRevisions=14467  nbAssignments=364  nbFailedAssignments=71  nbBacktracks=232  nbVisitedNodes=474
1.54	     nbRestartNogoods=9  mapSize=98  nbInferences=0  nbTooLargeKeys=0
1.54	       =>  wckTime=0.184  cpuTime=0.14  mem=31M240
1.59	   
1.59	   search
1.59	     run=6  nbConstraintChecks=10105  nbValidityChecks=12750  nbPropagations=3410  nbRevisions=25816
1.59	     nbUselessRevisions=22282  nbAssignments=527  nbFailedAssignments=102  nbBacktracks=355  nbVisitedNodes=700
1.59	     nbRestartNogoods=11  mapSize=157  nbInferences=0  nbTooLargeKeys=0
1.59	       =>  wckTime=0.236  cpuTime=0.18  mem=31M240
1.66	   
1.66	   search
1.66	     run=7  nbConstraintChecks=14701  nbValidityChecks=19974  nbPropagations=5121  nbRevisions=39673
1.66	     nbUselessRevisions=34157  nbAssignments=754  nbFailedAssignments=148  nbBacktracks=532  nbVisitedNodes=1007
1.66	     nbRestartNogoods=15  mapSize=235  nbInferences=0  nbTooLargeKeys=0
1.66	       =>  wckTime=0.299  cpuTime=0.24  mem=31M240
1.73	   
1.73	   search
1.73	     run=8  nbConstraintChecks=20958  nbValidityChecks=30057  nbPropagations=7559  nbRevisions=60132
1.73	     nbUselessRevisions=51773  nbAssignments=1074  nbFailedAssignments=199  nbBacktracks=799  nbVisitedNodes=1425
1.73	     nbRestartNogoods=17  mapSize=332  nbInferences=0  nbTooLargeKeys=0
1.73	       =>  wckTime=0.371  cpuTime=0.31  mem=31M240
1.86	   
1.86	   search
1.86	     run=9  nbConstraintChecks=31420  nbValidityChecks=46750  nbPropagations=11265  nbRevisions=91457
1.86	     nbUselessRevisions=78703  nbAssignments=1559  nbFailedAssignments=292  nbBacktracks=1184  nbVisitedNodes=2087
1.86	     nbRestartNogoods=18  mapSize=503  nbInferences=0  nbTooLargeKeys=0
1.86	       =>  wckTime=0.498  cpuTime=0.41  mem=31M240
2.01	   
2.01	   search
2.01	     run=10  nbConstraintChecks=47690  nbValidityChecks=72435  nbPropagations=16876  nbRevisions=139311
2.01	     nbUselessRevisions=119946  nbAssignments=2278  nbFailedAssignments=422  nbBacktracks=1766  nbVisitedNodes=3062
2.01	     nbRestartNogoods=24  mapSize=754  nbInferences=0  nbTooLargeKeys=0
2.01	       =>  wckTime=0.656  cpuTime=0.55  mem=31M240
2.16	   
2.16	   INFO : Stopping hyperNogood (mapSize=1004, nbTooLargekeys=0, mem=31M240)
2.23	   
2.23	   search
2.23	     run=11  nbConstraintChecks=75202  nbValidityChecks=116414  nbPropagations=25636  nbRevisions=215821
2.23	     nbUselessRevisions=186083  nbAssignments=3364  nbFailedAssignments=629  nbBacktracks=2637  nbVisitedNodes=4544
2.23	     nbRestartNogoods=29
2.23	       =>  wckTime=0.871  cpuTime=0.77  mem=31M240
2.27	   
2.27	   search
2.27	     run=12  nbConstraintChecks=78927  nbValidityChecks=122352  nbPropagations=34859  nbRevisions=296213
2.27	     nbUselessRevisions=255598  nbAssignments=3529  nbFailedAssignments=657  nbBacktracks=2775  nbVisitedNodes=4771
2.27	     nbRestartNogoods=34
2.27	       =>  wckTime=0.911  cpuTime=0.8  mem=31M240
2.27	   
2.27	   global
2.27	     nbConstraintChecks=78927  nbValidityChecks=122352  nbPropagations=34959  nbRevisions=296213
2.27	     nbUselessRevisions=255598  nbRestartNogoods=34  solvingWckTime=0.912  solvingCpuTime=0.8  expiredTime=no
2.27	     totalExploration=yes  nbFoundSolutions=0  globalCpuTime=1.61
2.27	       =>  wckTime=1.947  cpuTime=1.56  mem=31M240
2.27	   
2.27	s UNSATISFIABLE
2.27	d NODES 3529
2.27	d CHECKS 78927
2.27	   
2.27	   totalWckTime=2.033  totalCpuTime=1.61

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/node22/watcher-218931-1168079746 -o ROOT/results/node22/solver-218931-1168079746 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/218931-1168079746/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: 1.99 1.46 1.23 4/93 9244
/proc/meminfo: memFree=1108264/2055920 swapFree=4157532/4192956
[pid=9243] ppid=9241 vsize=18540 CPUtime=0
/proc/9243/stat : 9243 (runsolver) R 9241 9243 8988 0 -1 4194368 17 0 0 0 0 0 0 0 19 0 1 0 156369067 18984960 279 18446744073709551615 4194304 4267372 548682068960 18446744073709551615 272467815719 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/9243/statm: 4635 279 244 17 0 2626 0

[startup+0.102609 s]
/proc/loadavg: 1.99 1.46 1.23 4/93 9244
/proc/meminfo: memFree=1108264/2055920 swapFree=4157532/4192956
[pid=9243] ppid=9241 vsize=914988 CPUtime=0.07
/proc/9243/stat : 9243 (java) R 9241 9243 8988 0 -1 0 2973 0 1 0 6 1 0 0 17 0 8 0 156369067 936947712 2719 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4152820100 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/9243/statm: 228747 2719 1421 14 0 215242 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 914988

[startup+0.510673 s]
/proc/loadavg: 1.99 1.46 1.23 4/93 9244
/proc/meminfo: memFree=1108264/2055920 swapFree=4157532/4192956
[pid=9243] ppid=9241 vsize=915328 CPUtime=0.49
/proc/9243/stat : 9243 (java) R 9241 9243 8988 0 -1 0 6709 0 1 0 45 4 0 0 17 0 8 0 156369067 937295872 6448 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4072897167 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/9243/statm: 228832 6448 2144 14 0 215302 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915328

[startup+1.3318 s]
/proc/loadavg: 1.99 1.46 1.23 5/100 9251
/proc/meminfo: memFree=1051376/2055920 swapFree=4157532/4192956
[pid=9243] ppid=9241 vsize=915756 CPUtime=1.3
/proc/9243/stat : 9243 (java) R 9241 9243 8988 0 -1 0 16976 0 1 0 110 20 0 0 17 0 8 0 156369067 937734144 16713 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4072937345 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/9243/statm: 228939 16713 2516 14 0 215409 0
[pid=9243/tid=9245] ppid=9241 vsize=915756 CPUtime=0.05
/proc/9243/task/9245/stat : 9245 (java) S 9241 9243 8988 0 -1 64 691 0 0 0 5 0 0 0 17 0 8 0 156369071 937734144 16713 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0
[pid=9243/tid=9246] ppid=9241 vsize=915756 CPUtime=0
/proc/9243/task/9246/stat : 9246 (java) S 9241 9243 8988 0 -1 64 11 0 0 0 0 0 0 0 16 0 8 0 156369071 937734144 16713 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=9243/tid=9247] ppid=9241 vsize=915756 CPUtime=0
/proc/9243/task/9247/stat : 9247 (java) S 9241 9243 8988 0 -1 64 5 0 0 0 0 0 0 0 16 0 8 0 156369071 937734144 16713 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=9243/tid=9248] ppid=9241 vsize=915756 CPUtime=0
/proc/9243/task/9248/stat : 9248 (java) S 9241 9243 8988 0 -1 64 0 0 0 0 0 0 0 0 18 0 8 0 156369074 937734144 16713 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=9243/tid=9249] ppid=9241 vsize=915756 CPUtime=0.24
/proc/9243/task/9249/stat : 9249 (java) R 9241 9243 8988 0 -1 64 454 0 0 0 23 1 0 0 20 0 8 0 156369075 937734144 16713 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=9243/tid=9250] ppid=9241 vsize=915756 CPUtime=0
/proc/9243/task/9250/stat : 9250 (java) S 9241 9243 8988 0 -1 64 1 0 0 0 0 0 0 0 19 0 8 0 156369075 937734144 16713 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=9243/tid=9251] ppid=9241 vsize=915756 CPUtime=0
/proc/9243/task/9251/stat : 9251 (java) S 9241 9243 8988 0 -1 64 1 0 0 0 0 0 0 0 15 0 8 0 156369075 937734144 16713 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 915756

Child status: 0
Real time (s): 2.33429
CPU time (s): 2.25766
CPU user time (s): 2.03269
CPU system time (s): 0.224965
CPU usage (%): 96.717
Max. virtual memory (cumulated for all children) (KiB): 915756

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.03269
system time used= 0.224965
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17072
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= 1053
involuntary context switches= 1265

runsolver used 0.005999 s user time and 0.016997 s system time

The end

Launcher Data (download as text)

Begin job on node22 on Sat Jan  6 10:35:46 UTC 2007


IDJOB= 218931
IDBENCH= 5267
FILE ID= node22/218931-1168079746

PBS_JOBID= 3476094

Free space on /tmp= 66532 MiB

BENCH NAME= HOME/pub/bench/CPAI06/chessboardColoration/cc-10-10-2.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/218931-1168079746/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node22/watcher-218931-1168079746 -o ROOT/results/node22/solver-218931-1168079746 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/218931-1168079746/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  a92776cdff8557438c3e6ed66838915a

RANDOM SEED= 5421595

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		: 3000.279
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		: 3000.279
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:       1108744 kB
Buffers:         40004 kB
Cached:         350472 kB
SwapCached:      13648 kB
Active:         554964 kB
Inactive:       324204 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1108744 kB
SwapTotal:     4192956 kB
SwapFree:      4157532 kB
Dirty:           19472 kB
Writeback:           0 kB
Mapped:         513904 kB
Slab:            51956 kB
Committed_AS:  3431948 kB
PageTables:       3180 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= 66532 MiB



End job on node22 on Sat Jan  6 10:35:50 UTC 2007