Trace number 2059241

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-restart 0.3.2? 75.2796 75.8876

DiagnosticValue
ASSIGNMENTS1000000

General information on the benchmark

Namecsp/coloring/
normalized-myciel-5g-5-ext.xml
MD5SUM47f19d409f9d78e9224e2696b8e0decb
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark23.5644
Satisfiable
(Un)Satisfiability was proved
Number of variables47
Number of constraints236
Maximum constraint arity2
Maximum domain size5
Number of constraints which are defined in extension236
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.18/0.21	c Seed is 845251899
0.18/0.21	c Constructing HOME/instance-2059241-1247695100.xml  with 1180 constraints
0.18/0.21	c Solving 1000001 backtracks 25 restarts
75.18/75.88	s UNKNOWN
75.18/75.88	c Too many backtracks
75.18/75.88	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-2059241-1247695100/watcher-2059241-1247695100 -o /tmp/evaluation-result-2059241-1247695100/solver-2059241-1247695100 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 845251899 HOME/instance-2059241-1247695100.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: 1.99 1.88 1.19 4/72 10660
/proc/meminfo: memFree=1162240/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=5356 CPUtime=0
/proc/10660/stat : 10660 (pcssolve) R 10658 10660 10482 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 56573190 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 218076080799 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/10660/statm: 1339 241 200 169 0 50 0
[pid=10661] ppid=10660 vsize=5356 CPUtime=0
/proc/10661/stat : 10661 (pcssolve) R 10660 10660 10482 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 56573190 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 218076080799 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/10661/statm: 1339 241 200 169 0 50 0

[startup+0.0125669 s]
/proc/loadavg: 1.99 1.88 1.19 4/72 10660
/proc/meminfo: memFree=1162240/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=5356 CPUtime=0
/proc/10660/stat : 10660 (pcssolve) R 10658 10660 10482 0 -1 4194304 326 313 0 0 0 0 0 0 21 0 1 0 56573190 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 218076080799 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/10660/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.101584 s]
/proc/loadavg: 1.99 1.88 1.19 4/72 10660
/proc/meminfo: memFree=1162240/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=4936 CPUtime=0.08
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 936 810 0 0 8 0 0 0 18 0 1 0 56573190 5054464 545 996147200 134512640 135095119 4294956304 18446744073709551615 4159337245 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 1234 545 378 142 0 188 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4936

[startup+0.301614 s]
/proc/loadavg: 1.99 1.88 1.19 4/72 10660
/proc/meminfo: memFree=1162240/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=5720 CPUtime=0.28
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 1148 810 0 0 28 0 0 0 19 0 1 0 56573190 5857280 724 996147200 134512640 135095119 4294956304 18446744073709551615 134615457 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 1430 724 378 142 0 384 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5720

[startup+0.701684 s]
/proc/loadavg: 1.99 1.88 1.19 4/72 10660
/proc/meminfo: memFree=1162240/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=7660 CPUtime=0.67
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 1766 810 0 0 67 0 0 0 23 0 1 0 56573190 7843840 1083 996147200 134512640 135095119 4294956304 18446744073709551615 134642947 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 1915 1083 378 142 0 869 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 7660

[startup+1.50282 s]
/proc/loadavg: 1.99 1.88 1.19 3/73 10666
/proc/meminfo: memFree=1157560/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=11032 CPUtime=1.47
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 2880 810 0 0 146 1 0 0 25 0 1 0 56573190 11296768 1811 996147200 134512640 135095119 4294956304 18446744073709551615 134589654 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 2758 1811 378 142 0 1712 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 11032

[startup+3.10108 s]
/proc/loadavg: 1.99 1.88 1.19 3/73 10666
/proc/meminfo: memFree=1153016/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=17512 CPUtime=3.06
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 5026 810 0 0 304 2 0 0 25 0 1 0 56573190 17932288 3187 996147200 134512640 135095119 4294956304 18446744073709551615 134578275 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 4378 3187 378 142 0 3332 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 17512

[startup+6.30162 s]
/proc/loadavg: 1.99 1.88 1.19 3/73 10666
/proc/meminfo: memFree=1142648/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=30624 CPUtime=6.23
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 9305 810 0 0 619 4 0 0 25 0 1 0 56573190 31358976 5928 996147200 134512640 135095119 4294956304 18446744073709551615 134615398 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 7656 5928 378 142 0 6610 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 30624

[startup+12.7017 s]
/proc/loadavg: 1.99 1.88 1.20 3/73 10666
/proc/meminfo: memFree=1120888/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=56016 CPUtime=12.57
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 17559 810 0 0 1251 6 0 0 25 0 1 0 56573190 57360384 11108 996147200 134512640 135095119 4294956304 18446744073709551615 134642982 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 14004 11108 378 142 0 12958 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 56016

[startup+25.5018 s]
/proc/loadavg: 1.99 1.89 1.21 3/73 10666
/proc/meminfo: memFree=1078520/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=106516 CPUtime=25.27
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 33917 810 0 0 2512 15 0 0 25 0 1 0 56573190 109072384 21320 996147200 134512640 135095119 4294956304 18446744073709551615 134589560 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 26629 21320 378 142 0 25583 0
Current children cumulated CPU time (s) 25.27
Current children cumulated vsize (KiB) 106516

[startup+51.1011 s]
/proc/loadavg: 1.99 1.89 1.23 3/73 10666
/proc/meminfo: memFree=1003128/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=203516 CPUtime=50.67
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 64993 810 0 0 5037 30 0 0 25 0 1 0 56573190 208400384 40106 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 50879 40106 378 142 0 49833 0
Current children cumulated CPU time (s) 50.67
Current children cumulated vsize (KiB) 203516

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

[startup+63.9012 s]
/proc/loadavg: 1.99 1.90 1.24 3/73 10666
/proc/meminfo: memFree=966200/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=225420 CPUtime=63.37
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 73815 810 0 0 6301 36 0 0 25 0 1 0 56573190 230830080 48928 996147200 134512640 135095119 4294956304 18446744073709551615 134617027 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 56355 48928 378 142 0 55309 0
Current children cumulated CPU time (s) 63.37
Current children cumulated vsize (KiB) 225420

[startup+70.3013 s]
/proc/loadavg: 1.99 1.90 1.24 3/73 10666
/proc/meminfo: memFree=947768/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=236532 CPUtime=69.72
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 78227 810 0 0 6934 38 0 0 25 0 1 0 56573190 242208768 53340 996147200 134512640 135095119 4294956304 18446744073709551615 134617043 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 59133 53340 378 142 0 58087 0
Current children cumulated CPU time (s) 69.72
Current children cumulated vsize (KiB) 236532

[startup+73.5018 s]
/proc/loadavg: 1.99 1.90 1.25 3/73 10666
/proc/meminfo: memFree=941752/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=241992 CPUtime=72.9
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 80409 810 0 0 7251 39 0 0 25 0 1 0 56573190 247799808 55522 996147200 134512640 135095119 4294956304 18446744073709551615 134617633 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 60498 55522 378 142 0 59452 0
Current children cumulated CPU time (s) 72.9
Current children cumulated vsize (KiB) 241992

[startup+75.1011 s]
/proc/loadavg: 1.99 1.90 1.25 3/73 10666
/proc/meminfo: memFree=935672/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=211444 CPUtime=74.48
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 81318 810 0 0 7408 40 0 0 25 0 1 0 56573190 216518656 48609 996147200 134512640 135095119 4294956304 18446744073709551615 7826940 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 52861 48609 378 142 0 51815 0
Current children cumulated CPU time (s) 74.48
Current children cumulated vsize (KiB) 211444

[startup+75.5012 s]
/proc/loadavg: 1.99 1.90 1.25 3/73 10666
/proc/meminfo: memFree=935672/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=211444 CPUtime=74.88
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 81318 810 0 0 7448 40 0 0 25 0 1 0 56573190 216518656 48609 996147200 134512640 135095119 4294956304 18446744073709551615 7823429 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 52861 48609 378 142 0 51815 0
Current children cumulated CPU time (s) 74.88
Current children cumulated vsize (KiB) 211444

[startup+75.7012 s]
/proc/loadavg: 1.99 1.90 1.25 3/73 10666
/proc/meminfo: memFree=935672/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=211444 CPUtime=75.08
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 81318 810 0 0 7468 40 0 0 25 0 1 0 56573190 216518656 48609 996147200 134512640 135095119 4294956304 18446744073709551615 7823475 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 52861 48609 378 142 0 51815 0
Current children cumulated CPU time (s) 75.08
Current children cumulated vsize (KiB) 211444

[startup+75.8012 s]
/proc/loadavg: 1.99 1.90 1.25 3/73 10666
/proc/meminfo: memFree=966392/2055920 swapFree=4192812/4192956
[pid=10660] ppid=10658 vsize=211444 CPUtime=75.18
/proc/10660/stat : 10660 (pcs.small) R 10658 10660 10482 0 -1 4194304 81318 810 0 0 7478 40 0 0 25 0 1 0 56573190 216518656 48609 996147200 134512640 135095119 4294956304 18446744073709551615 7823484 0 0 4096 0 0 0 0 17 1 0 0
/proc/10660/statm: 52861 48609 378 142 0 51815 0
Current children cumulated CPU time (s) 75.18
Current children cumulated vsize (KiB) 211444

Child status: 0
Real time (s): 75.8876
CPU time (s): 75.2796
CPU user time (s): 74.8286
CPU system time (s): 0.450931
CPU usage (%): 99.1987
Max. virtual memory (cumulated for all children) (KiB): 244216

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 74.8286
system time used= 0.450931
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 82131
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= 23
involuntary context switches= 1691

runsolver used 0.083987 second user time and 0.213967 second system time

The end

Launcher Data 

Begin job on node57 at 2009-07-15 23:58:20
IDJOB=2059241
IDBENCH=53564
IDSOLVER=734
FILE ID=node57/2059241-1247695100
PBS_JOBID= 9521198
Free space on /tmp= 66356 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/coloring/normalized-myciel-5g-5-ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2059241-1247695100/watcher-2059241-1247695100 -o /tmp/evaluation-result-2059241-1247695100/solver-2059241-1247695100 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 845251899 HOME/instance-2059241-1247695100.xml

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

MD5SUM BENCH= 47f19d409f9d78e9224e2696b8e0decb
RANDOM SEED=845251899

node57.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		: 3000.261
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		: 3000.261
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:       1162720 kB
Buffers:         74528 kB
Cached:         690404 kB
SwapCached:          0 kB
Active:         230192 kB
Inactive:       592548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1162720 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1732 kB
Writeback:           0 kB
Mapped:          69180 kB
Slab:            55984 kB
Committed_AS:   551396 kB
PageTables:       1832 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= 66356 MiB
End job on node57 at 2009-07-15 23:59:36