Trace number 4265188

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 2017-08-10? (NS) 0.504435 0.58954501

General information on the benchmark

NameKnightTour/KnightTour-ext-s1/
KnightTour-16-ext02.xml
MD5SUM8abff29310eab5a4cd6a8102cf358f32
Bench CategoryCSP (decision problem)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables256
Number of constraints258
Number of domains1
Minimum domain size256
Maximum domain size256
Distribution of domain sizes[{"size":256,"count":256}]
Minimum variable degree2
Maximum variable degree3
Distribution of variable degrees[{"degree":2,"count":254},{"degree":3,"count":2}]
Minimum constraint arity2
Maximum constraint arity256
Distribution of constraint arities[{"arity":2,"count":257},{"arity":256,"count":1}]
Number of extensional constraints256
Number of intensional constraints0
Distribution of constraint types[{"type":"extension","count":256},{"type":"allDifferent","count":1},{"type":"instantiation","count":1}]
Optimization problemNO
Type of objective

Solver Data 

0.42/0.58	s UNSUPPORTED

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 (15053 MiB free)
  memory of node 1: 16384 MiB (15495 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4265188-1502760654/watcher-4265188-1502760654 -o /tmp/evaluation-result-4265188-1502760654/solver-4265188-1502760654 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node127-1502653304-21654 --watchdog 2580 BTD 2520 HOME/instance-4265188-1502760654.xml 

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
Linux 3.10.0-514.16.1.el7.x86_64
Starting watchdog thread
Current StackSize limit: 8192 KiB

solver pid=21476, runsolver pid=21473

[startup+0.100107 s]*
/proc/loadavg: 2.00 2.01 2.05 3/182 21477
/proc/meminfo: memFree=31282216/32770624 swapFree=67108860/67108860
[pid=21476] ppid=21473 vsize=32248 memory=2636 CPUtime=0.02 cores=0,2,4,6
/proc/21476/stat : 21476 (BTD) R 21473 21476 17093 0 -1 4202496 809 0 0 0 2 0 0 0 20 0 1 0 78258704 33021952 659 18446744073709551615 4194304 35031035 140724740596080 140724740596080 7408826 0 0 1 0 0 0 0 17 0 0 0 8 0 0 37130264 37226188 67682304 140724740604383 140724740604459 140724740604459 140724740607953 0
/proc/21476/statm: 8062 659 232 7529 0 509 0
Current children cumulated CPU time: 0.02 s
Current children cumulated vsize: 32248 KiB
Current children cumulated memory: 2636 KiB

[startup+0.209043 s]*
/proc/loadavg: 2.00 2.01 2.05 3/182 21477
/proc/meminfo: memFree=31276264/32770624 swapFree=67108860/67108860
[pid=21476] ppid=21473 vsize=38344 memory=8836 CPUtime=0.12 cores=0,2,4,6
/proc/21476/stat : 21476 (BTD) R 21473 21476 17093 0 -1 4202496 2346 0 0 0 12 0 0 0 20 0 1 0 78258704 39264256 2209 18446744073709551615 4194304 35031035 140724740596080 140724740596080 4223218 0 0 1 0 0 0 0 17 0 0 0 8 0 0 37130264 37226188 67682304 140724740604383 140724740604459 140724740604459 140724740607953 0
/proc/21476/statm: 9586 2209 259 7529 0 2033 0
Current children cumulated CPU time: 0.12 s
Current children cumulated vsize: 38344 KiB
Current children cumulated memory: 8836 KiB

[startup+0.309042 s]*
/proc/loadavg: 2.00 2.01 2.05 3/182 21477
/proc/meminfo: memFree=31272048/32770624 swapFree=67108860/67108860
[pid=21476] ppid=21473 vsize=42568 memory=13060 CPUtime=0.22 cores=0,2,4,6
/proc/21476/stat : 21476 (BTD) R 21473 21476 17093 0 -1 4202496 3406 0 0 0 22 0 0 0 20 0 1 0 78258704 43589632 3265 18446744073709551615 4194304 35031035 140724740596080 140724740596080 4223226 0 0 1 0 0 0 0 17 0 0 0 8 0 0 37130264 37226188 67682304 140724740604383 140724740604459 140724740604459 140724740607953 0
/proc/21476/statm: 10642 3265 259 7529 0 3089 0
Current children cumulated CPU time: 0.22 s
Current children cumulated vsize: 42568 KiB
Current children cumulated memory: 13060 KiB

[startup+0.589502 s]
# the end of solver process 21476 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=0.492425 s, system=0.01201 s

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

[startup+0.409007 s]*
/proc/loadavg: 2.00 2.01 2.05 3/182 21477
/proc/meminfo: memFree=31267956/32770624 swapFree=67108860/67108860
[pid=21476] ppid=21473 vsize=46792 memory=17284 CPUtime=0.32 cores=0,2,4,6
/proc/21476/stat : 21476 (BTD) R 21473 21476 17093 0 -1 4202496 4465 0 0 0 32 0 0 0 20 0 1 0 78258704 47915008 4321 18446744073709551615 4194304 35031035 140724740596080 140724740596080 4223218 0 0 1 0 0 0 0 17 0 0 0 8 0 0 37130264 37226188 67682304 140724740604383 140724740604459 140724740604459 140724740607953 0
/proc/21476/statm: 11698 4321 259 7529 0 4145 0
Current children cumulated CPU time: 0.32 s
Current children cumulated vsize: 46792 KiB
Current children cumulated memory: 17284 KiB

[startup+0.508845 s]*
/proc/loadavg: 2.00 2.01 2.05 3/182 21477
/proc/meminfo: memFree=31263492/32770624 swapFree=67108860/67108860
[pid=21476] ppid=21473 vsize=51016 memory=21508 CPUtime=0.42 cores=0,2,4,6
/proc/21476/stat : 21476 (BTD) R 21473 21476 17093 0 -1 4202496 5524 0 0 0 42 0 0 0 20 0 1 0 78258704 52240384 5377 18446744073709551615 4194304 35031035 140724740596080 140724740596080 4223226 0 0 1 0 0 0 0 17 0 0 0 8 0 0 37130264 37226188 67682304 140724740604383 140724740604459 140724740604459 140724740607953 0
/proc/21476/statm: 12754 5377 259 7529 0 5201 0
Current children cumulated CPU time: 0.42 s
Current children cumulated vsize: 51016 KiB
Current children cumulated memory: 21508 KiB

Child status: 1
Real time (s): 0.589545
CPU time (s): 0.504435
CPU user time (s): 0.492425
CPU system time (s): 0.01201
CPU usage (%): 85.5635
Max. virtual memory (cumulated for all children) (KiB): 51016
Max. memory (cumulated for all children) (KiB): 21508

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.492425
system time used= 0.01201
maximum resident set size= 24716
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6324
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= 1


# summary of solver processes directly reported to runsolver:
#   pid: 21476
#   total CPU time (s): 0.504435
#   total CPU user time (s): 0.492425
#   total CPU system time (s): 0.01201

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.017902 second user time and 0.047555 second system time

The end

Launcher Data 

Begin job on node127 at 2017-08-15 03:16:45
IDJOB=4265188
IDBENCH=134634
IDSOLVER=2654
FILE ID=node127/4265188-1502760654
RUNJOBID= node127-1502653304-21654
PBS_JOBID= 
Free space on /tmp= 61992 MiB

SOLVER NAME= BTD 2017-08-10
BENCH NAME= XCSP17/KnightTour/KnightTour-ext-s1/KnightTour-16-ext02.xml
COMMAND LINE= BTD TIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4265188-1502760654/watcher-4265188-1502760654 -o /tmp/evaluation-result-4265188-1502760654/solver-4265188-1502760654 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node127-1502653304-21654 --watchdog 2580  BTD 2520 HOME/instance-4265188-1502760654.xml

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

MD5SUM BENCH= 8abff29310eab5a4cd6a8102cf358f32
RANDOM SEED=2133847295

node127.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	: 5333.92
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	: 5333.92
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	: 5333.92
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	: 5333.92
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:        31283176 kB
MemAvailable:   31974132 kB
Buffers:          242464 kB
Cached:           736248 kB
SwapCached:            0 kB
Active:           759672 kB
Inactive:         283812 kB
Active(anon):      14448 kB
Inactive(anon):    83820 kB
Active(file):     745224 kB
Inactive(file):   199992 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:             38568 kB
Writeback:             0 kB
AnonPages:         64824 kB
Mapped:            51704 kB
Shmem:             33476 kB
Slab:             148976 kB
SReclaimable:     123148 kB
SUnreclaim:        25828 kB
KernelStack:        3248 kB
PageTables:         4984 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     342004 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:     16384 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      118144 kB
DirectMap2M:    33427456 kB

Free space on /tmp at the end= 61956 MiB
End job on node127 at 2017-08-15 03:16:46