Trace number 2084507

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
pcs 0.3.2? 93.7357 94.1228

DiagnosticValue
ASSIGNMENTS1000000

General information on the benchmark

Namecsp/graphColoring/
myciel/normalized-myciel7-6.xml
MD5SUMae59fd265626922afec84e7ef93d360f
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables191
Number of constraints2360
Maximum constraint arity2
Maximum domain size6
Number of constraints which are defined in extension0
Number of constraints which are defined in intension2360
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.00/0.01	c Seed is 1108392361
0.00/0.01	c Constructing HOME/instance-2084507-1247724787.xml  with 2360 constraints
0.04/0.08	c Solving 1000001 backtracks 25 restarts
93.69/94.12	s UNKNOWN
93.69/94.12	c Too many backtracks
93.69/94.12	d ASSIGNMENTS 1000001

Verifier Data 

ERROR: Unexpected answer ! ('s SATISFIABLE'/'s UNSATISFIABLE' expected)
Got answer: UNKNOWN

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2084507-1247724787/watcher-2084507-1247724787 -o /tmp/evaluation-result-2084507-1247724787/solver-2084507-1247724787 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1108392361 HOME/instance-2084507-1247724787.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: 1.92 1.98 1.99 4/73 16517
/proc/meminfo: memFree=1220432/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=5356 CPUtime=0
/proc/16517/stat : 16517 (pcssolve) R 16515 16517 14549 0 -1 4194304 290 0 0 0 0 0 0 0 19 0 1 0 59544292 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 234045893279 0 65538 4100 65536 0 0 0 17 0 0 0
/proc/16517/statm: 1339 241 200 169 0 50 0
[pid=16518] ppid=16517 vsize=0 CPUtime=0
/proc/16518/stat : 16518 (fgrep) Z 16517 16517 14549 0 -1 4194316 155 0 0 0 0 0 0 0 19 0 1 0 59544292 0 0 996147200 0 0 0 0 0 0 0 4096 0 18446744071563351923 0 0 17 1 0 0
/proc/16518/statm: 0 0 0 0 0 0 0
[pid=16519] ppid=16517 vsize=5356 CPUtime=0
/proc/16519/stat : 16519 (pcssolve) R 16517 16517 14549 0 -1 4194368 0 0 0 0 0 0 0 0 19 0 1 0 59544292 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 234045893279 0 65538 4100 65536 0 0 0 17 0 0 0
/proc/16519/statm: 1339 241 200 169 0 50 0

[startup+0.061021 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 16517
/proc/meminfo: memFree=1220432/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=4704 CPUtime=0.04
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 888 822 0 0 4 0 0 0 22 0 1 0 59544292 4816896 497 996147200 134512640 135095119 4294956304 18446744073709551615 4159198650 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 1176 497 373 142 0 130 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4704

[startup+0.101024 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 16517
/proc/meminfo: memFree=1220432/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=4968 CPUtime=0.08
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 953 822 0 0 8 0 0 0 22 0 1 0 59544292 5087232 562 996147200 134512640 135095119 4294956304 18446744073709551615 134840378 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 1242 562 386 142 0 196 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4968

[startup+0.301044 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 16517
/proc/meminfo: memFree=1220432/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=5488 CPUtime=0.28
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 1130 822 0 0 28 0 0 0 24 0 1 0 59544292 5619712 673 996147200 134512640 135095119 4294956304 18446744073709551615 134840375 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 1372 673 386 142 0 326 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5488

[startup+0.701086 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 16517
/proc/meminfo: memFree=1220432/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=7040 CPUtime=0.67
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 1624 822 0 0 67 0 0 0 25 0 1 0 59544292 7208960 1037 996147200 134512640 135095119 4294956304 18446744073709551615 134844600 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 1760 1037 386 142 0 714 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 7040

[startup+1.50117 s]
/proc/loadavg: 1.92 1.98 1.99 3/74 16523
/proc/meminfo: memFree=1216456/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=11036 CPUtime=1.48
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 2871 822 0 0 147 1 0 0 25 0 1 0 59544292 11300864 1769 996147200 134512640 135095119 4294956304 18446744073709551615 134839429 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 2759 1769 386 142 0 1713 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 11036

[startup+3.10234 s]
/proc/loadavg: 1.92 1.98 1.99 3/74 16523
/proc/meminfo: memFree=1212488/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=17748 CPUtime=3.07
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 5034 822 0 0 305 2 0 0 25 0 1 0 59544292 18173952 3162 996147200 134512640 135095119 4294956304 18446744073709551615 134582115 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 4437 3162 386 142 0 3391 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 17748

[startup+6.30167 s]
/proc/loadavg: 1.93 1.98 1.99 3/74 16523
/proc/meminfo: memFree=1197768/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=31432 CPUtime=6.25
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 9427 822 0 0 622 3 0 0 25 0 1 0 59544292 32186368 6017 996147200 134512640 135095119 4294956304 18446744073709551615 134580556 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 7858 6017 386 142 0 6812 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 31432

[startup+12.7014 s]
/proc/loadavg: 1.93 1.98 1.99 3/74 16523
/proc/meminfo: memFree=1174288/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=58804 CPUtime=12.63
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 18071 822 0 0 1256 7 0 0 25 0 1 0 59544292 60215296 11587 996147200 134512640 135095119 4294956304 18446744073709551615 134584709 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 14701 11587 386 142 0 13655 0
Current children cumulated CPU time (s) 12.63
Current children cumulated vsize (KiB) 58804

[startup+25.5017 s]
/proc/loadavg: 1.95 1.98 1.99 3/74 16523
/proc/meminfo: memFree=1126480/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=113160 CPUtime=25.38
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 35092 822 0 0 2524 14 0 0 25 0 1 0 59544292 115875840 22462 996147200 134512640 135095119 4294956304 18446744073709551615 134584709 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 28290 22462 386 142 0 27244 0
Current children cumulated CPU time (s) 25.38
Current children cumulated vsize (KiB) 113160

[startup+51.1014 s]
/proc/loadavg: 1.96 1.98 1.99 3/74 16523
/proc/meminfo: memFree=1031504/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=223028 CPUtime=50.87
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 68968 822 0 0 5057 30 0 0 25 0 1 0 59544292 228380672 44048 996147200 134512640 135095119 4294956304 18446744073709551615 134839513 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 55757 44048 386 142 0 54711 0
Current children cumulated CPU time (s) 50.87
Current children cumulated vsize (KiB) 223028

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

[startup+76.7011 s]
/proc/loadavg: 1.97 1.98 1.99 3/74 16523
/proc/meminfo: memFree=977744/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=246452 CPUtime=76.36
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 80831 822 0 0 7601 35 0 0 25 0 1 0 59544292 252366848 55911 996147200 134512640 135095119 4294956304 18446744073709551615 134839487 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 61613 55911 386 142 0 60567 0
Current children cumulated CPU time (s) 76.36
Current children cumulated vsize (KiB) 246452

[startup+83.1017 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 16523
/proc/meminfo: memFree=958992/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=256564 CPUtime=82.75
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 84808 822 0 0 8237 38 0 0 25 0 1 0 59544292 262721536 59888 996147200 134512640 135095119 4294956304 18446744073709551615 134578288 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 64141 59888 386 142 0 63095 0
Current children cumulated CPU time (s) 82.75
Current children cumulated vsize (KiB) 256564

[startup+89.5014 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 16523
/proc/meminfo: memFree=939600/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=266804 CPUtime=89.12
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 88847 822 0 0 8872 40 0 0 25 0 1 0 59544292 273207296 63927 996147200 134512640 135095119 4294956304 18446744073709551615 134617221 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 66701 63927 386 142 0 65655 0
Current children cumulated CPU time (s) 89.12
Current children cumulated vsize (KiB) 266804

[startup+92.7017 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 16523
/proc/meminfo: memFree=930640/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=271796 CPUtime=92.31
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 90774 822 0 0 9190 41 0 0 25 0 1 0 59544292 278319104 65854 996147200 134512640 135095119 4294956304 18446744073709551615 134590379 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 67949 65854 386 142 0 66903 0
Current children cumulated CPU time (s) 92.31
Current children cumulated vsize (KiB) 271796

[startup+93.5068 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 16523
/proc/meminfo: memFree=959440/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=239664 CPUtime=93.1
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 91037 822 0 0 9269 41 0 0 25 0 1 0 59544292 245415936 58286 996147200 134512640 135095119 4294956304 18446744073709551615 134595289 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 59916 58286 386 142 0 58870 0
Current children cumulated CPU time (s) 93.1
Current children cumulated vsize (KiB) 239664

[startup+93.9019 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 16523
/proc/meminfo: memFree=959440/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=239664 CPUtime=93.49
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 91037 822 0 0 9308 41 0 0 25 0 1 0 59544292 245415936 58286 996147200 134512640 135095119 4294956304 18446744073709551615 5165180 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 59916 58286 386 142 0 58870 0
Current children cumulated CPU time (s) 93.49
Current children cumulated vsize (KiB) 239664

[startup+94.1019 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 16523
/proc/meminfo: memFree=959440/2055920 swapFree=4192812/4192956
[pid=16517] ppid=16515 vsize=134240 CPUtime=93.69
/proc/16517/stat : 16517 (pcs.small) R 16515 16517 14549 0 -1 4194304 91037 822 0 0 9326 43 0 0 25 0 1 0 59544292 137461760 31949 996147200 134512640 135095119 4294956304 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/16517/statm: 33560 31949 3098 142 0 32514 0
Current children cumulated CPU time (s) 93.69
Current children cumulated vsize (KiB) 134240

Child status: 0
Real time (s): 94.1228
CPU time (s): 93.7357
CPU user time (s): 93.2698
CPU system time (s): 0.465929
CPU usage (%): 99.5887
Max. virtual memory (cumulated for all children) (KiB): 272436

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 93.2698
system time used= 0.465929
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 91861
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 17
involuntary context switches= 1345

runsolver used 0.101984 second user time and 0.248962 second system time

The end

Launcher Data 

Begin job on node79 at 2009-07-16 08:13:07
IDJOB=2084507
IDBENCH=58086
IDSOLVER=733
FILE ID=node79/2084507-1247724787
PBS_JOBID= 9521417
Free space on /tmp= 66380 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/graphColoring/myciel/normalized-myciel7-6.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2084507-1247724787/watcher-2084507-1247724787 -o /tmp/evaluation-result-2084507-1247724787/solver-2084507-1247724787 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1108392361 HOME/instance-2084507-1247724787.xml

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

MD5SUM BENCH= ae59fd265626922afec84e7ef93d360f
RANDOM SEED=1108392361

node79.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		: 3000.229
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		: 3000.229
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:       1220920 kB
Buffers:         83644 kB
Cached:         353324 kB
SwapCached:          0 kB
Active:         357880 kB
Inactive:       385668 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1220920 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2004 kB
Writeback:           0 kB
Mapped:         318072 kB
Slab:            76120 kB
Committed_AS:   833344 kB
PageTables:       2468 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= 66376 MiB
End job on node79 at 2009-07-16 08:14:41