Trace number 4268047

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
cosoco 1.12UNSAT 0.023348 0.103905

General information on the benchmark

NameLangford/Langford-m1-k4/
Langford-4-05.xml
MD5SUMdcd698711e12f83e61e612819d8effe3
Bench CategoryCSP (decision problem)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.012317
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints16
Number of domains1
Minimum domain size20
Maximum domain size20
Distribution of domain sizes[{"size":20,"count":20}]
Minimum variable degree2
Maximum variable degree3
Distribution of variable degrees[{"degree":2,"count":10},{"degree":3,"count":10}]
Minimum constraint arity2
Maximum constraint arity20
Distribution of constraint arities[{"arity":2,"count":15},{"arity":20,"count":1}]
Number of extensional constraints0
Number of intensional constraints15
Distribution of constraint types[{"type":"intension","count":15},{"type":"allDifferent","count":1}]
Optimization problemNO
Type of objective

Solver Data 

0.01/0.10	c root propagations     : 240         
0.01/0.10	c restarts enabled, print stats at every restarts
0.01/0.10	c
0.01/0.10	c
0.01/0.10	c
0.01/0.10	c This is cosoco 1.12 --  
0.01/0.10	c
0.01/0.10	c command line: cosoco -lc -model -restarts HOME/instance-4268047-1502506830.xml 
0.01/0.10	c ========================================[ Problem Statistics ]===========================================
0.01/0.10	c |                                                                                                       
0.01/0.10	c |  Parse time        :         0.02 s 
0.01/0.10	c |
0.01/0.10	c |               Variables: 20
0.01/0.10	c |            Domain Sizes: 20..20
0.01/0.10	c |
0.01/0.10	c |             Constraints: 16
0.01/0.10	c |                   Arity: 2..20  -- Binary: 15
0.01/0.10	c | 
0.01/0.10	c |                   Types: 
0.01/0.10	c |                          All Different: 1
0.01/0.10	c |                          Intension: 15
0.01/0.10	c |                          
0.01/0.10	c =========================================================================================================
0.01/0.10	c conflicts      decisions      filterCalls    propagations   Root Prop.     Nogoods        min/max/avg depth
0.01/0.10	c restarts              : 0           
0.01/0.10	c conflicts             : 1            (45 /sec)
0.01/0.10	c decisions             : 1            (45 /sec)
0.01/0.10	c propagations          : 487         (22090 /sec)
0.01/0.10	c root propagations     : 240         
0.01/0.10	c filter calls          : 141            (6396 /sec)
0.01/0.10	c useless filter calls  : 30             (21 %)
0.01/0.10	c Memory used           : 26.37 MB
0.01/0.10	c CPU time              : 0.022046 s
0.01/0.10	
0.01/0.10	s UNSATISFIABLE

Verifier Data


Watcher Data 

runsolver Copyright (C) 2010-2013 Olivier ROUSSEL

This is runsolver version 3.3.7 (svn: 2553)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4268047-1502506830/watcher-4268047-1502506830 -o /tmp/evaluation-result-4268047-1502506830/solver-4268047-1502506830 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node124-1502500286-31838 --watchdog 2580 cosoco -lc -model -restarts HOME/instance-4268047-1502506830.xml 

pid=1919
running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2520 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2550 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2520 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 8192 KiB


[startup+0 s]
/proc/loadavg: 2.41 2.11 1.93 1/176 1922
/proc/meminfo: memFree=31579764/32770624 swapFree=0/413640
[pid=1922] ppid=1919 vsize=23672 CPUtime=0 cores=0,2,4,6
/proc/1922/stat : 1922 (runsolver) D 1919 1922 31775 0 -1 4202560 107 0 0 0 0 0 0 0 20 0 1 0 39023672 24240128 108 18446744073709551615 4194304 4338465 140728594972928 140728594970568 139996744921815 0 0 1 24578 18446744071580418449 0 0 17 6 0 0 0 0 0 6438912 6441760 8900608 140728594976961 140728594977353 140728594977353 140728594980810 0
/proc/1922/statm: 5918 108 54 36 0 2156 0

[startup+0.100088 s]
/proc/loadavg: 2.41 2.11 1.93 1/176 1922
/proc/meminfo: memFree=31579764/32770624 swapFree=0/413640
[pid=1922] ppid=1919 vsize=26996 CPUtime=0.01 cores=0,2,4,6
/proc/1922/stat : 1922 (cosoco) R 1919 1922 31775 0 -1 4202496 1044 0 0 0 1 0 0 0 20 0 1 0 39023672 27643904 832 18446744073709551615 4194304 5972588 140736839494192 140736839490840 140143578710231 0 0 1 0 0 0 0 17 0 0 0 8 0 0 8070896 8075904 12447744 140736839500270 140736839500365 140736839500365 140736839503822 0
/proc/1922/statm: 6749 832 745 435 0 112 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 26996

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 1922 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

[startup+0.100088 s]
/proc/loadavg: 2.41 2.11 1.93 1/176 1922
/proc/meminfo: memFree=31579764/32770624 swapFree=0/413640
[pid=1922] ppid=1919 vsize=26996 CPUtime=0.01 cores=0,2,4,6
/proc/1922/stat : 1922 (cosoco) R 1919 1922 31775 0 -1 4202496 1044 0 0 0 1 0 0 0 20 0 1 0 39023672 27643904 832 18446744073709551615 4194304 5972588 140736839494192 140736839490840 140143578710231 0 0 1 0 0 0 0 17 0 0 0 8 0 0 8070896 8075904 12447744 140736839500270 140736839500365 140736839500365 140736839503822 0
/proc/1922/statm: 6749 832 745 435 0 112 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 26996

Child status: 0
Real time (s): 0.103905
CPU time (s): 0.023348
CPU user time (s): 0.022243
CPU system time (s): 0.001105
CPU usage (%): 22.4705
Max. virtual memory (cumulated for all children) (KiB): 26996

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.022243
system time used= 0.001105
maximum resident set size= 3776
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1103
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= 6
involuntary context switches= 1

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.00427 second user time and 0.005124 second system time

The end

Launcher Data 

Begin job on node124 at 2017-08-12 04:46:14
IDJOB=4268047
IDBENCH=124315
IDSOLVER=2658
FILE ID=node124/4268047-1502506830
RUNJOBID= node124-1502500286-31838
PBS_JOBID= 
Free space on /tmp= 62028 MiB

SOLVER NAME= cosoco 1.12
BENCH NAME= XCSP17/Langford/Langford-m1-k4/Langford-4-05.xml
COMMAND LINE= cosoco -lc -model -restarts BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4268047-1502506830/watcher-4268047-1502506830 -o /tmp/evaluation-result-4268047-1502506830/solver-4268047-1502506830 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node124-1502500286-31838 --watchdog 2580  cosoco -lc -model -restarts HOME/instance-4268047-1502506830.xml

TIME LIMIT= 2520 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= dcd698711e12f83e61e612819d8effe3
RANDOM SEED=1294884502

node124.alineos.net Linux 3.10.0-514.16.1.el7.x86_64 #1 SMP Wed Apr 12 15:04:24 UTC 2017

/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor:
performance

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5333.51
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
initial apicid	: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
initial apicid	: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5333.51
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
initial apicid	: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
initial apicid	: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5333.51
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
initial apicid	: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
initial apicid	: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5333.51
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
microcode	: 0x19
cpu MHz		: 2668.000
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
initial apicid	: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32770624 kB
MemFree:        31579776 kB
MemAvailable:   32010692 kB
Buffers:          228952 kB
Cached:           496380 kB
SwapCached:            0 kB
Active:           337556 kB
Inactive:         438600 kB
Active(anon):      51176 kB
Inactive(anon):    24960 kB
Active(file):     286380 kB
Inactive(file):   413640 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:              5084 kB
Writeback:             4 kB
AnonPages:         50868 kB
Mapped:            39156 kB
Shmem:             25320 kB
Slab:             118672 kB
SReclaimable:      93464 kB
SUnreclaim:        25208 kB
KernelStack:        3168 kB
PageTables:         4584 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     298940 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      354332 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:      4096 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      116096 kB
DirectMap2M:    33429504 kB

Free space on /tmp at the end= 62028 MiB
End job on node124 at 2017-08-12 04:46:14