Trace number 4306354

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 2018.07.27_3UNSAT 0.82099 0.821152

General information on the benchmark

NameQuasigroups/
QuasiGroup-7-07_c18.xml
MD5SUM950a11acbe9bee1dbcb0d00f57370eba
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 benchmark0.287109
Satisfiable
(Un)Satisfiability was proved
Number of variables98
Number of constraints86
Number of domains1
Minimum domain size7
Maximum domain size7
Distribution of domain sizes[{"size":7,"count":91}]
Minimum variable degree0
Maximum variable degree15
Distribution of variable degrees[{"degree":0,"count":7},{"degree":2,"count":42},{"degree":14,"count":7},{"degree":15,"count":42}]
Minimum constraint arity7
Maximum constraint arity49
Distribution of constraint arities[{"arity":7,"count":1},{"arity":9,"count":84},{"arity":49,"count":1}]
Number of extensional constraints0
Number of intensional constraints0
Distribution of constraint types[{"type":"allDifferent","count":1},{"type":"instantiation","count":1},{"type":"element","count":84}]
Optimization problemNO
Type of objective

Solver Data

0.00/0.00	c Version 18.07.27_3
0.79/0.82	s UNSATISFIABLE
0.79/0.82	c  # Nodes: 15067

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 (12839 MiB free)
  memory of node 1: 16384 MiB (11312 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4306354-1534129117/watcher-4306354-1534129117 -o /tmp/evaluation-result-4306354-1534129117/solver-4306354-1534129117 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node107-1534100756-25063 --watchdog 2580 BTD 3 2520 HOME/instance-4306354-1534129117.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
Current StackSize limit: 8192 KiB

solver pid=28644, runsolver pid=28641

[startup+0.100107 s]*
/proc/loadavg: 2.00 2.01 2.04 3/187 28645
/proc/meminfo: memFree=24731128/32770624 swapFree=67108860/67108860
[pid=28644] ppid=28641 vsize=32644 memory=2616 CPUtime=0.1 cores=1,3,5,7
/proc/28644/stat : 28644 (BTD) R 28641 28644 25031 0 -1 4202496 827 0 0 0 10 0 0 0 20 0 1 0 230474936 33427456 654 33554432000 4194304 36388936 140732251467328 140732251467328 8047831 0 0 4096 0 0 0 0 17 1 0 0 0 0 0 38489992 38625312 44687360 140732251468989 140732251469067 140732251469067 140732251471825 0
/proc/28644/statm: 8161 654 476 7861 0 265 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 32644 KiB
Current children cumulated memory: 2616 KiB

[startup+0.209221 s]*
/proc/loadavg: 2.00 2.01 2.04 3/187 28645
/proc/meminfo: memFree=24731128/32770624 swapFree=67108860/67108860
[pid=28644] ppid=28641 vsize=32644 memory=2616 CPUtime=0.21 cores=1,3,5,7
/proc/28644/stat : 28644 (BTD) R 28641 28644 25031 0 -1 4202496 830 0 0 0 20 1 0 0 20 0 1 0 230474936 33427456 654 33554432000 4194304 36388936 140732251467328 140732251467328 8047831 0 0 4096 0 0 0 0 17 1 0 0 0 0 0 38489992 38625312 44687360 140732251468989 140732251469067 140732251469067 140732251471825 0
/proc/28644/statm: 8161 654 476 7861 0 265 0
Current children cumulated CPU time: 0.21 s
Current children cumulated vsize: 32644 KiB
Current children cumulated memory: 2616 KiB

[startup+0.308806 s]*
/proc/loadavg: 2.00 2.01 2.04 3/187 28645
/proc/meminfo: memFree=24731128/32770624 swapFree=67108860/67108860
[pid=28644] ppid=28641 vsize=32644 memory=2616 CPUtime=0.31 cores=1,3,5,7
/proc/28644/stat : 28644 (BTD) R 28641 28644 25031 0 -1 4202496 831 0 0 0 30 1 0 0 20 0 1 0 230474936 33427456 654 33554432000 4194304 36388936 140732251467328 140732251467328 8047831 0 0 4096 0 0 0 0 17 1 0 0 0 0 0 38489992 38625312 44687360 140732251468989 140732251469067 140732251469067 140732251471825 0
/proc/28644/statm: 8161 654 476 7861 0 265 0
Current children cumulated CPU time: 0.31 s
Current children cumulated vsize: 32644 KiB
Current children cumulated memory: 2616 KiB

[startup+0.700225 s]
/proc/loadavg: 2.00 2.01 2.04 3/187 28645
/proc/meminfo: memFree=24731344/32770624 swapFree=67108860/67108860
[pid=28644] ppid=28641 vsize=32644 memory=2616 CPUtime=0.69 cores=1,3,5,7
/proc/28644/stat : 28644 (BTD) R 28641 28644 25031 0 -1 4202496 834 0 0 0 67 2 0 0 20 0 1 0 230474936 33427456 654 33554432000 4194304 36388936 140732251467328 140732251466168 8047831 0 0 4096 0 0 0 0 17 1 0 0 0 0 0 38489992 38625312 44687360 140732251468989 140732251469067 140732251469067 140732251471825 0
/proc/28644/statm: 8161 654 476 7861 0 265 0
Current children cumulated CPU time: 0.69 s
Current children cumulated vsize: 32644 KiB
Current children cumulated memory: 2616 KiB

[startup+0.821118 s]
# the end of solver process 28644 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=0.792991 s, system=0.027999 s

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

[startup+0.800241 s]
/proc/loadavg: 2.00 2.01 2.04 3/187 28645
/proc/meminfo: memFree=24731344/32770624 swapFree=67108860/67108860
[pid=28644] ppid=28641 vsize=32644 memory=2616 CPUtime=0.79 cores=1,3,5,7
/proc/28644/stat : 28644 (BTD) R 28641 28644 25031 0 -1 4202496 835 0 0 0 77 2 0 0 20 0 1 0 230474936 33427456 654 33554432000 4194304 36388936 140732251467328 140732251466168 8047831 0 0 4096 0 0 0 0 17 1 0 0 0 0 0 38489992 38625312 44687360 140732251468989 140732251469067 140732251469067 140732251471825 0
/proc/28644/statm: 8161 654 476 7861 0 265 0
Current children cumulated CPU time: 0.79 s
Current children cumulated vsize: 32644 KiB
Current children cumulated memory: 2616 KiB

Child status: 0
Real time (s): 0.821152
CPU time (s): 0.82099
CPU user time (s): 0.792991
CPU system time (s): 0.027999
CPU usage (%): 99.9803
Max. virtual memory (cumulated for all children) (KiB): 32644
Max. memory (cumulated for all children) (KiB): 2616

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.792991
system time used= 0.027999
maximum resident set size= 2848
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 839
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= 2


# summary of solver processes directly reported to runsolver:
#   pid: 28644
#   total CPU time (s): 0.82099
#   total CPU user time (s): 0.792991
#   total CPU system time (s): 0.027999

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.029439 second user time and 0.03553 second system time

The end

Launcher Data

Begin job on node107 at 2018-08-13 04:58:37
IDJOB=4306354
IDBENCH=141610
IDSOLVER=2786
FILE ID=node107/4306354-1534129117
RUNJOBID= node107-1534100756-25063
PBS_JOBID= 21037008
Free space on /tmp= 39404 MiB

SOLVER NAME= BTD 2018.07.27_3
BENCH NAME= XCSP18/Quasigroups/QuasiGroup-7-07_c18.xml
COMMAND LINE= BTD 3 TIMELIMIT BENCHNAME 
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4306354-1534129117/watcher-4306354-1534129117 -o /tmp/evaluation-result-4306354-1534129117/solver-4306354-1534129117 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node107-1534100756-25063 --watchdog 2580  BTD 3 2520 HOME/instance-4306354-1534129117.xml 

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

MD5SUM BENCH= 950a11acbe9bee1dbcb0d00f57370eba
RANDOM SEED=1227331291

node107.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	: 5333.40
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	: 5333.40
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	: 5333.40
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	: 5333.40
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:        24732428 kB
MemAvailable:   31886440 kB
Buffers:          221252 kB
Cached:          7128872 kB
SwapCached:            0 kB
Active:          3799552 kB
Inactive:        3622952 kB
Active(anon):      21264 kB
Inactive(anon):   103616 kB
Active(file):    3778288 kB
Inactive(file):  3519336 kB
Unevictable:        6976 kB
Mlocked:            6976 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:             52616 kB
Writeback:             0 kB
AnonPages:         79196 kB
Mapped:            54476 kB
Shmem:             49804 kB
Slab:             313920 kB
SReclaimable:     284848 kB
SUnreclaim:        29072 kB
KernelStack:        3344 kB
PageTables:         5368 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     393304 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:     22528 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:       91520 kB
DirectMap2M:    33454080 kB

Free space on /tmp at the end= 39352 MiB
End job on node107 at 2018-08-13 04:58:38