Trace number 4242535

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
R1: BTD 2017-06-30? (NS) 0.540072 0.540507

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 

0.49/0.53	s UNSUPPORTED

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-4242535-1500631357/watcher-4242535-1500631357 -o /tmp/evaluation-result-4242535-1500631357/solver-4242535-1500631357 -C 2400 -W 2500 -M 15500 --bin-var /tmp/runsolver-exch-node147-1500623775-3732 --watchdog 2560 BTD 2400 HOME/instance-4242535-1500631357.xml 

pid=5709
running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2500 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: 2.01 2.02 2.04 2/186 5712
/proc/meminfo: memFree=29796476/32770624 swapFree=6172/1912740
[pid=5712] ppid=5709 vsize=30936 CPUtime=0 cores=1,3,5,7
/proc/5712/stat : 5712 (BTD) R 5709 5712 3700 0 -1 4202496 491 0 0 0 0 0 0 0 20 0 1 0 16568208 31678464 325 33554432000 4194304 35031059 140722668111072 140722668111072 7408842 0 0 4096 0 0 0 0 17 3 0 0 0 0 0 37130264 37226188 59523072 140722668119290 140722668119366 140722668119366 140722668122065 0
/proc/5712/statm: 7734 325 232 7529 0 181 0

[startup+0.100159 s]
/proc/loadavg: 2.01 2.02 2.04 2/186 5712
/proc/meminfo: memFree=29796476/32770624 swapFree=6172/1912740
[pid=5712] ppid=5709 vsize=35572 CPUtime=0.09 cores=1,3,5,7
/proc/5712/stat : 5712 (BTD) R 5709 5712 3700 0 -1 4202496 1666 0 0 0 9 0 0 0 20 0 1 0 16568208 36425728 1483 33554432000 4194304 35031059 140722668111072 140722668106792 4223256 0 0 4096 0 0 0 0 17 3 0 0 0 0 0 37130264 37226188 59523072 140722668119290 140722668119366 140722668119366 140722668122065 0
/proc/5712/statm: 8893 1483 259 7529 0 1340 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 35572

[startup+0.200278 s]
/proc/loadavg: 2.01 2.02 2.04 2/186 5712
/proc/meminfo: memFree=29796476/32770624 swapFree=6172/1912740
[pid=5712] ppid=5709 vsize=39532 CPUtime=0.19 cores=1,3,5,7
/proc/5712/stat : 5712 (BTD) R 5709 5712 3700 0 -1 4202496 2654 0 0 0 19 0 0 0 20 0 1 0 16568208 40480768 2473 33554432000 4194304 35031059 140722668111072 140722668104184 4223208 0 0 4096 0 0 0 0 17 3 0 0 0 0 0 37130264 37226188 59523072 140722668119290 140722668119366 140722668119366 140722668122065 0
/proc/5712/statm: 9883 2473 261 7529 0 2330 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 39532

[startup+0.300259 s]
/proc/loadavg: 2.01 2.02 2.04 2/186 5712
/proc/meminfo: memFree=29796476/32770624 swapFree=6172/1912740
[pid=5712] ppid=5709 vsize=43888 CPUtime=0.29 cores=1,3,5,7
/proc/5712/stat : 5712 (BTD) R 5709 5712 3700 0 -1 4202496 3731 0 0 0 29 0 0 0 20 0 1 0 16568208 44941312 3595 33554432000 4194304 35031059 140722668111072 140722668104184 4223208 0 0 4096 0 0 0 0 17 3 0 0 0 0 0 37130264 37226188 59523072 140722668119290 140722668119366 140722668119366 140722668122065 0
/proc/5712/statm: 10972 3595 261 7529 0 3419 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 43888

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 5712 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

[startup+0.400266 s]
/proc/loadavg: 2.01 2.02 2.04 2/186 5712
/proc/meminfo: memFree=29796476/32770624 swapFree=6172/1912740
[pid=5712] ppid=5709 vsize=48112 CPUtime=0.39 cores=1,3,5,7
/proc/5712/stat : 5712 (BTD) R 5709 5712 3700 0 -1 4202496 4808 0 0 0 39 0 0 0 20 0 1 0 16568208 49266688 4651 33554432000 4194304 35031059 140722668111072 140722668104184 7408842 0 0 4096 0 0 0 0 17 3 0 0 0 0 0 37130264 37226188 59523072 140722668119290 140722668119366 140722668119366 140722668122065 0
/proc/5712/statm: 12028 4651 261 7529 0 4475 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 48112

[startup+0.500229 s]
/proc/loadavg: 2.01 2.02 2.04 2/186 5712
/proc/meminfo: memFree=29796476/32770624 swapFree=6172/1912740
[pid=5712] ppid=5709 vsize=52336 CPUtime=0.49 cores=1,3,5,7
/proc/5712/stat : 5712 (BTD) R 5709 5712 3700 0 -1 4202496 5868 0 0 0 49 0 0 0 20 0 1 0 16568208 53592064 5707 33554432000 4194304 35031059 140722668111072 140722668104184 4223260 0 0 4096 0 0 0 0 17 3 0 0 0 0 0 37130264 37226188 59523072 140722668119290 140722668119366 140722668119366 140722668122065 0
/proc/5712/statm: 13084 5707 261 7529 0 5531 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 52336

Child status: 1
Real time (s): 0.540507
CPU time (s): 0.540072
CPU user time (s): 0.528071
CPU system time (s): 0.012001
CPU usage (%): 99.9195
Max. virtual memory (cumulated for all children) (KiB): 52336

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.528071
system time used= 0.012001
maximum resident set size= 24724
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6332
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= 28

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.007089 second user time and 0.006077 second system time

The end

Launcher Data 

Begin job on node147 at 2017-07-21 12:02:37
IDJOB=4242535
IDBENCH=134634
IDSOLVER=2619
FILE ID=node147/4242535-1500631357
RUNJOBID= node147-1500623775-3732
PBS_JOBID= 20622987
Free space on /tmp= 61904 MiB

SOLVER NAME= BTD 2017-06-30
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-4242535-1500631357/watcher-4242535-1500631357 -o /tmp/evaluation-result-4242535-1500631357/solver-4242535-1500631357 -C 2400 -W 2500 -M 15500 --bin-var /tmp/runsolver-exch-node147-1500623775-3732 --watchdog 2560  BTD 2400 HOME/instance-4242535-1500631357.xml

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 8abff29310eab5a4cd6a8102cf358f32
RANDOM SEED=1006566144

node147.alineos.net Linux 3.10.0-514.16.1.el7.x86_64 #1 SMP Wed Apr 12 15:04:24 UTC 2017

/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		: 1600.000
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	: 5334.11
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		: 1600.000
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		: 1600.000
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	: 5334.11
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		: 2267.000
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	: 5334.11
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		: 2400.000
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		: 1600.000
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	: 5334.11
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		: 1600.000
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:        29797116 kB
MemAvailable:   32002324 kB
Buffers:          158940 kB
Cached:          2322372 kB
SwapCached:            0 kB
Active:           622284 kB
Inactive:        1921604 kB
Active(anon):      65040 kB
Inactive(anon):     8864 kB
Active(file):     557244 kB
Inactive(file):  1912740 kB
Unevictable:        6172 kB
Mlocked:            6172 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:             38692 kB
Writeback:             0 kB
AnonPages:         74432 kB
Mapped:            34248 kB
Shmem:              8852 kB
Slab:             128192 kB
SReclaimable:     102120 kB
SUnreclaim:        26072 kB
KernelStack:        3568 kB
PageTables:         4572 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     335940 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:     18432 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      109952 kB
DirectMap2M:    33435648 kB

Free space on /tmp at the end= 61864 MiB
End job on node147 at 2017-07-21 12:02:38