Trace number 4260465

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 2017-07-25UNSAT 0.01214 0.100199

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 

0.00/0.09	c Version: 2017-07-25
0.00/0.10	s UNSATISFIABLE
0.00/0.10	c Solving # Nodes: 1
0.00/0.10	c Global Time: 0.01132 s

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-4260465-1502238412/watcher-4260465-1502238412 -o /tmp/evaluation-result-4260465-1502238412/solver-4260465-1502238412 -C 2640 -W 2400 -M 15500 --bin-var /tmp/runsolver-exch-node134-1502234584-31451 --watchdog 2460 BTD 2640 HOME/instance-4260465-1502238412.xml 

pid=2021
running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2640 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2670 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 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: 2.00 1.99 1.91 2/183 2024
/proc/meminfo: memFree=30942164/32770624 swapFree=0/506260
[pid=2024] ppid=2021 vsize=23672 CPUtime=0 cores=0,2,4,6
/proc/2024/stat : 2024 (runsolver) D 2021 2024 31388 0 -1 4202560 108 0 0 0 0 0 0 0 20 0 1 0 71347352 24240128 617 18446744073709551615 4194304 4338465 140720884774848 140720884772488 140526832493271 0 0 1 24578 18446744071580418449 0 0 17 0 0 0 0 0 0 6438912 6441760 35807232 140720884781268 140720884781641 140720884781641 140720884785098 0
/proc/2024/statm: 5918 617 53 36 0 2156 0

[startup+0.100058 s]
/proc/loadavg: 2.00 1.99 1.91 2/183 2024
/proc/meminfo: memFree=30942164/32770624 swapFree=0/506260
[pid=2024] ppid=2021 vsize=0 CPUtime=0.01 cores=0,2,4,6
/proc/2024/stat : 2024 (BTD) Z 2021 2024 31388 0 -1 4227084 523 0 0 0 1 0 0 0 20 0 1 0 71347352 0 0 18446744073709551615 0 0 0 0 0 0 0 1 0 18446744073709551615 0 0 17 2 0 0 8 0 0 0 0 0 0 0 0 0 0
/proc/2024/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 0

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 2024 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

[startup+0.100058 s]
/proc/loadavg: 2.00 1.99 1.91 2/183 2024
/proc/meminfo: memFree=30942164/32770624 swapFree=0/506260
[pid=2024] ppid=2021 vsize=0 CPUtime=0.01 cores=0,2,4,6
/proc/2024/stat : 2024 (BTD) Z 2021 2024 31388 0 -1 4227084 523 0 0 0 1 0 0 0 20 0 1 0 71347352 0 0 18446744073709551615 0 0 0 0 0 0 0 1 0 18446744073709551615 0 0 17 2 0 0 8 0 0 0 0 0 0 0 0 0 0
/proc/2024/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 0.100199
CPU time (s): 0.01214
CPU user time (s): 0.010273
CPU system time (s): 0.001867
CPU usage (%): 12.1159
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.010273
system time used= 0.001867
maximum resident set size= 2684
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 523
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

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.003566 second user time and 0.007133 second system time

The end

Launcher Data 

Begin job on node134 at 2017-08-09 02:12:55
IDJOB=4260465
IDBENCH=124315
IDSOLVER=2648
FILE ID=node134/4260465-1502238412
RUNJOBID= node134-1502234584-31451
PBS_JOBID= 
Free space on /tmp= 61988 MiB

SOLVER NAME= BTD 2017-07-25
BENCH NAME= XCSP17/Langford/Langford-m1-k4/Langford-4-05.xml
COMMAND LINE= BTD TIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4260465-1502238412/watcher-4260465-1502238412 -o /tmp/evaluation-result-4260465-1502238412/solver-4260465-1502238412 -C 2640 -W 2400 -M 15500 --bin-var /tmp/runsolver-exch-node134-1502234584-31451 --watchdog 2460  BTD 2640 HOME/instance-4260465-1502238412.xml

TIME LIMIT= 2640 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= dcd698711e12f83e61e612819d8effe3
RANDOM SEED=669459161

node134.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	: 5333.43
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	: 5333.43
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	: 5333.43
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	: 5333.43
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:        30946168 kB
MemAvailable:   31820692 kB
Buffers:          242144 kB
Cached:           919836 kB
SwapCached:            0 kB
Active:           862356 kB
Inactive:         529292 kB
Active(anon):     231680 kB
Inactive(anon):    23032 kB
Active(file):     630676 kB
Inactive(file):   506260 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:             38256 kB
Writeback:             0 kB
AnonPages:        241388 kB
Mapped:            46136 kB
Shmem:             25276 kB
Slab:             133816 kB
SReclaimable:     106844 kB
SUnreclaim:        26972 kB
KernelStack:        3520 kB
PageTables:         5140 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     487400 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      354332 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:     51200 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      101760 kB
DirectMap2M:    33443840 kB

Free space on /tmp at the end= 61948 MiB
End job on node134 at 2017-08-09 02:12:55