Trace number 4306050

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
BTD_12 2018.07.27_12UNSAT 0.212194 0.213482

General information on the benchmark

NameLangford/
LangfordBin-06_c18.xml
MD5SUM067c7c3f6995d0e6d34aa4db2f294f93
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 benchmark0.00947
Satisfiable
(Un)Satisfiability was proved
Number of variables24
Number of constraints18
Number of domains2
Minimum domain size6
Maximum domain size12
Distribution of domain sizes[{"size":6,"count":12},{"size":12,"count":12}]
Minimum variable degree2
Maximum variable degree12
Distribution of variable degrees[{"degree":2,"count":12},{"degree":12,"count":12}]
Minimum constraint arity2
Maximum constraint arity13
Distribution of constraint arities[{"arity":2,"count":6},{"arity":13,"count":12}]
Number of extensional constraints0
Number of intensional constraints6
Distribution of constraint types[{"type":"intension","count":6},{"type":"element","count":12}]
Optimization problemNO
Type of objective

Solver Data

0.00/0.00	c Version 18.07.27_12
0.10/0.21	s UNSATISFIABLE
0.10/0.21	c  # Nodes: 16668

Verifier Data


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 (5061 MiB free)
  memory of node 1: 16384 MiB (3232 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4306050-1534080889/watcher-4306050-1534080889 -o /tmp/evaluation-result-4306050-1534080889/solver-4306050-1534080889 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node133-1534062958-15436 --watchdog 2580 BTD 12 2520 HOME/instance-4306050-1534080889.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=17965, runsolver pid=17962
Current StackSize limit: 8192 KiB


[startup+0.108261 s]*
/proc/loadavg: 2.00 2.01 2.05 3/193 17966
/proc/meminfo: memFree=8492096/32770624 swapFree=67108856/67108860
[pid=17965] ppid=17962 vsize=32280 memory=2456 CPUtime=0.1 cores=1,3,5,7
/proc/17965/stat : 17965 (BTD) R 17962 17965 15404 0 -1 4202496 757 0 0 0 9 1 0 0 20 0 1 0 225652059 33054720 614 33554432000 4194304 36388936 140722297129040 140722297127880 8047831 0 0 4096 0 0 0 0 17 1 0 0 0 0 0 38489992 38625312 50888704 140722297132220 140722297132299 140722297132299 140722297135057 0
/proc/17965/statm: 8070 614 517 7861 0 174 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 32280 KiB
Current children cumulated memory: 2456 KiB

[startup+0.213463 s]
# the end of solver process 17965 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=0.187289 s, system=0.024905 s

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

[startup+0.108261 s]*
/proc/loadavg: 2.00 2.01 2.05 3/193 17966
/proc/meminfo: memFree=8492096/32770624 swapFree=67108856/67108860
[pid=17965] ppid=17962 vsize=32280 memory=2456 CPUtime=0.1 cores=1,3,5,7
/proc/17965/stat : 17965 (BTD) R 17962 17965 15404 0 -1 4202496 757 0 0 0 9 1 0 0 20 0 1 0 225652059 33054720 614 33554432000 4194304 36388936 140722297129040 140722297127880 8047831 0 0 4096 0 0 0 0 17 1 0 0 0 0 0 38489992 38625312 50888704 140722297132220 140722297132299 140722297132299 140722297135057 0
/proc/17965/statm: 8070 614 517 7861 0 174 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 32280 KiB
Current children cumulated memory: 2456 KiB

Child status: 0
Real time (s): 0.213482
CPU time (s): 0.212194
CPU user time (s): 0.187289
CPU system time (s): 0.024905
CPU usage (%): 99.3967
Max. virtual memory (cumulated for all children) (KiB): 32280
Max. memory (cumulated for all children) (KiB): 2456

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.187289
system time used= 0.024905
maximum resident set size= 2544
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 763
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: 17965
#   total CPU time (s): 0.212194
#   total CPU user time (s): 0.187289
#   total CPU system time (s): 0.024905

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.011373 second user time and 0.019645 second system time

The end

Launcher Data

Begin job on node133 at 2018-08-12 15:34:49
IDJOB=4306050
IDBENCH=141346
IDSOLVER=2785
FILE ID=node133/4306050-1534080889
RUNJOBID= node133-1534062958-15436
PBS_JOBID= 21036985
Free space on /tmp= 38976 MiB

SOLVER NAME= BTD_12 2018.07.27_12
BENCH NAME= XCSP18/Langford/LangfordBin-06_c18.xml
COMMAND LINE= BTD 12 TIMELIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4306050-1534080889/watcher-4306050-1534080889 -o /tmp/evaluation-result-4306050-1534080889/solver-4306050-1534080889 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node133-1534062958-15436 --watchdog 2580  BTD 12 2520 HOME/instance-4306050-1534080889.xml

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

MD5SUM BENCH= 067c7c3f6995d0e6d34aa4db2f294f93
RANDOM SEED=665532017

node133.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	: 5333.24
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	: 5333.24
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	: 5333.24
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	: 5333.24
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:         8492636 kB
MemAvailable:   31904452 kB
Buffers:          221892 kB
Cached:         23135412 kB
SwapCached:            0 kB
Active:         10006720 kB
Inactive:       13406244 kB
Active(anon):       6704 kB
Inactive(anon):   101696 kB
Active(file):   10000016 kB
Inactive(file): 13304548 kB
Unevictable:        7092 kB
Mlocked:            7092 kB
SwapTotal:      67108860 kB
SwapFree:       67108856 kB
Dirty:             52784 kB
Writeback:             0 kB
AnonPages:         62640 kB
Mapped:            58404 kB
Shmem:             49820 kB
Slab:             563368 kB
SReclaimable:     535712 kB
SUnreclaim:        27656 kB
KernelStack:        3456 kB
PageTables:         5404 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     379868 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:      6144 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= 38924 MiB
End job on node133 at 2018-08-12 15:34:49