Trace number 2084551

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? 63.6523 63.9056

DiagnosticValue
ASSIGNMENTS1000000

General information on the benchmark

Namecsp/graphColoring/
myciel/normalized-myciel6-5.xml
MD5SUM847ad0b91d45ff24c9b9b595db8ec3bf
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 benchmark37.9172
Satisfiable
(Un)Satisfiability was proved
Number of variables95
Number of constraints755
Maximum constraint arity2
Maximum domain size5
Number of constraints which are defined in extension0
Number of constraints which are defined in intension755
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.00/0.01	c Seed is 557948518
0.00/0.01	c Constructing HOME/instance-2084551-1247724825.xml  with 755 constraints
0.01/0.04	c Solving 1000001 backtracks 25 restarts
63.63/63.90	s UNKNOWN
63.63/63.90	c Too many backtracks
63.63/63.90	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-2084551-1247724825/watcher-2084551-1247724825 -o /tmp/evaluation-result-2084551-1247724825/solver-2084551-1247724825 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 557948518 HOME/instance-2084551-1247724825.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: 2.00 2.00 2.00 4/73 14781
/proc/meminfo: memFree=1262712/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=5356 CPUtime=0
/proc/14781/stat : 14781 (pcssolve) R 14779 14781 12947 0 -1 4194304 290 0 0 0 0 0 0 0 19 0 1 0 59547795 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 214945032863 0 65538 4100 65536 0 0 0 17 0 0 0
/proc/14781/statm: 1339 241 200 169 0 50 0
[pid=14782] ppid=14781 vsize=5356 CPUtime=0
/proc/14782/stat : 14782 (pcssolve) R 14781 14781 12947 0 -1 4194368 16 0 0 0 0 0 0 0 19 0 1 0 59547796 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 4532517 0 0 4100 65536 0 0 0 17 0 0 0
/proc/14782/statm: 1339 242 201 169 0 50 0
[pid=14783] ppid=14781 vsize=5356 CPUtime=0
/proc/14783/stat : 14783 (pcssolve) R 14781 14781 12947 0 -1 4194368 0 0 0 0 0 0 0 0 19 0 1 0 59547796 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 214945032863 0 65538 4100 65536 0 0 0 17 0 0 0
/proc/14783/statm: 1339 241 200 169 0 50 0

[startup+0.036102 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 14781
/proc/meminfo: memFree=1262712/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=4504 CPUtime=0.01
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 845 819 0 0 1 0 0 0 23 0 1 0 59547795 4612096 454 996147200 134512640 135095119 4294956304 18446744073709551615 134706689 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 1126 454 373 142 0 80 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4504

[startup+0.101109 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 14781
/proc/meminfo: memFree=1262712/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=4792 CPUtime=0.08
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 928 819 0 0 8 0 0 0 23 0 1 0 59547795 4907008 537 996147200 134512640 135095119 4294956304 18446744073709551615 134616992 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 1198 537 385 142 0 152 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4792

[startup+0.301132 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 14781
/proc/meminfo: memFree=1262712/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=6088 CPUtime=0.28
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 1313 819 0 0 28 0 0 0 25 0 1 0 59547795 6234112 791 996147200 134512640 135095119 4294956304 18446744073709551615 134616997 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 1522 791 385 142 0 476 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6088

[startup+0.701179 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 14781
/proc/meminfo: memFree=1262712/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=8152 CPUtime=0.67
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 2024 819 0 0 67 0 0 0 25 0 1 0 59547795 8347648 1308 996147200 134512640 135095119 4294956304 18446744073709551615 134555253 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 2038 1308 385 142 0 992 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 8152

[startup+1.50127 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14787
/proc/meminfo: memFree=1257136/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=12280 CPUtime=1.48
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 3395 819 0 0 147 1 0 0 25 0 1 0 59547795 12574720 2293 996147200 134512640 135095119 4294956304 18446744073709551615 134578902 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 3070 2293 385 142 0 2024 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 12280

[startup+3.10145 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14787
/proc/meminfo: memFree=1251568/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=20164 CPUtime=3.07
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 6067 819 0 0 305 2 0 0 25 0 1 0 59547795 20647936 4195 996147200 134512640 135095119 4294956304 18446744073709551615 134580521 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 5041 4195 385 142 0 3995 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 20164

[startup+6.30282 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14787
/proc/meminfo: memFree=1235696/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=36044 CPUtime=6.26
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 11329 819 0 0 621 5 0 0 25 0 1 0 59547795 36909056 7919 996147200 134512640 135095119 4294956304 18446744073709551615 134578285 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 9011 7919 385 142 0 7965 0
Current children cumulated CPU time (s) 6.26
Current children cumulated vsize (KiB) 36044

[startup+12.7015 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14787
/proc/meminfo: memFree=1206192/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=66020 CPUtime=12.63
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 21289 819 0 0 1255 8 0 0 25 0 1 0 59547795 67604480 14805 996147200 134512640 135095119 4294956304 18446744073709551615 134616997 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 16505 14805 385 142 0 15459 0
Current children cumulated CPU time (s) 12.63
Current children cumulated vsize (KiB) 66020

[startup+25.502 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14787
/proc/meminfo: memFree=1150000/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=125312 CPUtime=25.38
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 40817 819 0 0 2520 18 0 0 25 0 1 0 59547795 128319488 28187 996147200 134512640 135095119 4294956304 18446744073709551615 134615623 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 31328 28187 385 142 0 30282 0
Current children cumulated CPU time (s) 25.38
Current children cumulated vsize (KiB) 125312

[startup+51.1019 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14787
/proc/meminfo: memFree=1049264/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=239048 CPUtime=50.88
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 78080 819 0 0 5056 32 0 0 25 0 1 0 59547795 244785152 53160 996147200 134512640 135095119 4294956304 18446744073709551615 134582348 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 59762 53160 385 142 0 58716 0
Current children cumulated CPU time (s) 50.88
Current children cumulated vsize (KiB) 239048

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

[startup+57.5026 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14787
/proc/meminfo: memFree=1023984/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=254072 CPUtime=57.26
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 83925 819 0 0 5691 35 0 0 25 0 1 0 59547795 260169728 59005 996147200 134512640 135095119 4294956304 18446744073709551615 3032983 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 63518 59005 385 142 0 62472 0
Current children cumulated CPU time (s) 57.26
Current children cumulated vsize (KiB) 254072

[startup+60.702 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14787
/proc/meminfo: memFree=1012080/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=261400 CPUtime=60.44
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 86814 819 0 0 6008 36 0 0 25 0 1 0 59547795 267673600 61894 996147200 134512640 135095119 4294956304 18446744073709551615 134619694 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 65350 61894 385 142 0 64304 0
Current children cumulated CPU time (s) 60.44
Current children cumulated vsize (KiB) 261400

[startup+62.3012 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14787
/proc/meminfo: memFree=1008048/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=265132 CPUtime=62.04
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 88284 819 0 0 6167 37 0 0 25 0 1 0 59547795 271495168 63364 996147200 134512640 135095119 4294956304 18446744073709551615 134617262 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 66283 63364 385 142 0 65237 0
Current children cumulated CPU time (s) 62.04
Current children cumulated vsize (KiB) 265132

[startup+63.1013 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14787
/proc/meminfo: memFree=1004016/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=266680 CPUtime=62.84
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 88848 819 0 0 6247 37 0 0 25 0 1 0 59547795 273080320 63928 996147200 134512640 135095119 4294956304 18446744073709551615 3034620 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 66670 63928 385 142 0 65624 0
Current children cumulated CPU time (s) 62.84
Current children cumulated vsize (KiB) 266680

[startup+63.5013 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14787
/proc/meminfo: memFree=1004016/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=233908 CPUtime=63.23
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 88848 819 0 0 6286 37 0 0 25 0 1 0 59547795 239521792 56109 996147200 134512640 135095119 4294956304 18446744073709551615 3031192 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 58477 56109 385 142 0 57431 0
Current children cumulated CPU time (s) 63.23
Current children cumulated vsize (KiB) 233908

[startup+63.9017 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14787
/proc/meminfo: memFree=1033968/2055920 swapFree=4192812/4192956
[pid=14781] ppid=14779 vsize=51528 CPUtime=63.63
/proc/14781/stat : 14781 (pcs.small) R 14779 14781 12947 0 -1 4194304 88848 819 0 0 6322 41 0 0 25 0 1 0 59547795 52764672 5072 996147200 134512640 135095119 4294956304 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/14781/statm: 12882 5072 385 142 0 11836 0
Current children cumulated CPU time (s) 63.63
Current children cumulated vsize (KiB) 51528

Child status: 0
Real time (s): 63.9056
CPU time (s): 63.6523
CPU user time (s): 63.2314
CPU system time (s): 0.420936
CPU usage (%): 99.6036
Max. virtual memory (cumulated for all children) (KiB): 266680

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 63.2314
system time used= 0.420936
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 89669
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= 15
involuntary context switches= 728

runsolver used 0.047992 second user time and 0.19297 second system time

The end

Launcher Data 

Begin job on node85 at 2009-07-16 08:13:45
IDJOB=2084551
IDBENCH=58090
IDSOLVER=733
FILE ID=node85/2084551-1247724825
PBS_JOBID= 9521464
Free space on /tmp= 126540 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/graphColoring/myciel/normalized-myciel6-5.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2084551-1247724825/watcher-2084551-1247724825 -o /tmp/evaluation-result-2084551-1247724825/solver-2084551-1247724825 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 557948518 HOME/instance-2084551-1247724825.xml

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

MD5SUM BENCH= 847ad0b91d45ff24c9b9b595db8ec3bf
RANDOM SEED=557948518

node85.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		: 3000.220
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		: 3000.220
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:       1263192 kB
Buffers:         90308 kB
Cached:         455732 kB
SwapCached:          0 kB
Active:         373920 kB
Inactive:       345420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1263192 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1796 kB
Writeback:           0 kB
Mapped:         184700 kB
Slab:            58572 kB
Committed_AS:   606056 kB
PageTables:       2024 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= 126540 MiB
End job on node85 at 2009-07-16 08:14:49