Trace number 4309611

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
PicatSAT 2018-08-14SAT 0.305607 0.317755

General information on the benchmark

NameLangford/
LangfordBin-16_c18.xml
MD5SUM27c67f30ca0ef1b1bbbeaa4cb2c2f178
Bench CategoryCSP (decision problem)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.261181
Satisfiable
(Un)Satisfiability was proved
Number of variables64
Number of constraints48
Number of domains2
Minimum domain size16
Maximum domain size32
Distribution of domain sizes[{"size":16,"count":32},{"size":32,"count":32}]
Minimum variable degree2
Maximum variable degree32
Distribution of variable degrees[{"degree":2,"count":32},{"degree":32,"count":32}]
Minimum constraint arity2
Maximum constraint arity33
Distribution of constraint arities[{"arity":2,"count":16},{"arity":33,"count":32}]
Number of extensional constraints0
Number of intensional constraints16
Distribution of constraint types[{"type":"intension","count":16},{"type":"element","count":32}]
Optimization problemNO
Type of objective

Solver Data 

0.20/0.30	c xcsp_picat version 2.4#7 (8/14/2018)
0.20/0.30	s SATISFIABLE
0.20/0.30	v <instantiation>
0.20/0.30	v     <list> p[] v[]  </list> 
0.20/0.30	v     <values> 2 0 4 1 31 27 30 25 18 12 26 19 17 9 23 14 13 3 16 5 22 10 20 7 29 15 21 6 24 8 28 11  1 2 1 9 2 10 14 12 15 7 11 16 5 9 8 13 10 7 5 6 12 14 11 8 15 4 6 3 16 13 4 3   </values> 
0.20/0.30	v </instantiation>

Verifier Data 

OK

Watcher Data 

runsolver version 3.4.0 (svn: 3012) Copyright (C) 2010-2013 Olivier ROUSSEL

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.

NUMA information:
  number of nodes: 2
  memory of node 0: 16374 MiB (6299 MiB free)
  memory of node 1: 16384 MiB (7815 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4309611-1534306601/watcher-4309611-1534306601 -o /tmp/evaluation-result-4309611-1534306601/solver-4309611-1534306601 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node148-1534293152-15985 --watchdog 2580 xcsp_picat HOME/instance-4309611-1534306601.xml 

running on 4 cores: 1,3,5,7

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
Linux 3.10.0-514.16.1.el7.x86_64
Starting watchdog thread
solver pid=17765, runsolver pid=17762
Current StackSize limit: 8192 KiB


[startup+0.101101 s]*
/proc/loadavg: 2.03 2.13 2.09 3/187 17766
/proc/meminfo: memFree=14440120/32770624 swapFree=67108368/67108860
[pid=17765] ppid=17762 vsize=2034212 memory=16348 CPUtime=0.1 cores=1,3,5,7
/proc/17765/stat : 17765 (xcsp_picat) R 17762 17765 15953 0 -1 4202496 1689 0 0 0 10 0 0 0 20 0 1 0 248223208 2083033088 4087 33554432000 4194304 5849940 140733557579744 140733557578232 5308608 0 0 4096 8389634 0 0 0 17 1 0 0 0 0 0 7949816 9396308 40972288 140733557580982 140733557581060 140733557581060 140733557583818 0
/proc/17765/statm: 508553 4087 705 405 0 505497 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 2034212 KiB
Current children cumulated memory: 16348 KiB

[startup+0.209537 s]*
/proc/loadavg: 2.03 2.13 2.09 3/187 17766
/proc/meminfo: memFree=14439748/32770624 swapFree=67108368/67108860
[pid=17765] ppid=17762 vsize=2034732 memory=16572 CPUtime=0.2 cores=1,3,5,7
/proc/17765/stat : 17765 (xcsp_picat) R 17762 17765 15953 0 -1 4202496 1855 0 0 0 20 0 0 0 20 0 1 0 248223208 2083565568 4143 33554432000 4194304 5849940 140733557579744 140733557578232 140670615113607 0 0 4096 8389634 0 0 0 17 1 0 0 0 0 0 7949816 9396308 40972288 140733557580982 140733557581060 140733557581060 140733557583818 0
/proc/17765/statm: 508683 4143 718 405 0 505627 0
Current children cumulated CPU time: 0.2 s
Current children cumulated vsize: 2034732 KiB
Current children cumulated memory: 16572 KiB

[startup+0.309019 s]*
/proc/loadavg: 2.03 2.13 2.09 3/187 17766
/proc/meminfo: memFree=14439376/32770624 swapFree=67108368/67108860
Current children cumulated CPU time: 0 s
Current children cumulated vsize: 0 KiB
Current children cumulated memory: 0 KiB

[startup+0.317744 s]
# the end of solver process 17765 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=0.292616 s, system=0.012991 s

Solver just ended.
??? end of watcher thread
Dumping a history of the last processes samples

[startup+0.309019 s]*
/proc/loadavg: 2.03 2.13 2.09 3/187 17766
/proc/meminfo: memFree=14439376/32770624 swapFree=67108368/67108860
Current children cumulated CPU time: 0 s
Current children cumulated vsize: 0 KiB
Current children cumulated memory: 0 KiB

Child status: 0
Real time (s): 0.317755
CPU time (s): 0.305607
CPU user time (s): 0.292616
CPU system time (s): 0.012991
CPU usage (%): 96.1769
Max. virtual memory (cumulated for all children) (KiB): 2034732
Max. memory (cumulated for all children) (KiB): 16572

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.292616
system time used= 0.012991
maximum resident set size= 17280
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1977
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= 2
involuntary context switches= 3


# summary of solver processes directly reported to runsolver:
#   pid: 17765
#   total CPU time (s): 0.305607
#   total CPU user time (s): 0.292616
#   total CPU system time (s): 0.012991

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.017955 second user time and 0.029513 second system time

The end

Launcher Data 

Begin job on node148 at 2018-08-15 06:16:41
IDJOB=4309611
IDBENCH=141345
IDSOLVER=2794
FILE ID=node148/4309611-1534306601
RUNJOBID= node148-1534293152-15985
PBS_JOBID= 21038138
Free space on /tmp= 42644 MiB

SOLVER NAME= PicatSAT 2018-08-14
BENCH NAME= XCSP18/Langford/LangfordBin-16_c18.xml
COMMAND LINE= xcsp_picat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4309611-1534306601/watcher-4309611-1534306601 -o /tmp/evaluation-result-4309611-1534306601/solver-4309611-1534306601 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node148-1534293152-15985 --watchdog 2580  xcsp_picat HOME/instance-4309611-1534306601.xml

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

MD5SUM BENCH= 27c67f30ca0ef1b1bbbeaa4cb2c2f178
RANDOM SEED=1100565558

node148.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	: 5333.50
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	: 5333.50
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	: 5333.50
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	: 5333.50
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:        14453344 kB
MemAvailable:   22515920 kB
Buffers:          171212 kB
Cached:          8105700 kB
SwapCached:            4 kB
Active:         13720280 kB
Inactive:        3974228 kB
Active(anon):    9371132 kB
Inactive(anon):   106944 kB
Active(file):    4349148 kB
Inactive(file):  3867284 kB
Unevictable:        7348 kB
Mlocked:            7348 kB
SwapTotal:      67108860 kB
SwapFree:       67108368 kB
Dirty:              3180 kB
Writeback:             0 kB
AnonPages:       9428548 kB
Mapped:            56856 kB
Shmem:             57780 kB
Slab:             303844 kB
SReclaimable:     274604 kB
SUnreclaim:        29240 kB
KernelStack:        3472 kB
PageTables:        23220 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:   11180500 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:   9367552 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= 42640 MiB
End job on node148 at 2018-08-15 06:16:41