Trace number 4299090

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
NACRE 1.0.4UNSAT 0.415015 0.417841

General information on the benchmark

NameQuasigroups_mini/
QuasiGroup-v7-07_mini_c18.xml
MD5SUM90a59188f351c01ffa8267023f43dfb7
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 benchmark0.415015
Satisfiable
(Un)Satisfiability was proved
Number of variables98
Number of constraints105
Number of domains1
Minimum domain size7
Maximum domain size7
Distribution of domain sizes[{"size":7,"count":91}]
Minimum variable degree0
Maximum variable degree16
Distribution of variable degrees[{"degree":0,"count":7},{"degree":2,"count":42},{"degree":15,"count":7},{"degree":16,"count":42}]
Minimum constraint arity1
Maximum constraint arity9
Distribution of constraint arities[{"arity":1,"count":7},{"arity":7,"count":14},{"arity":9,"count":84}]
Number of extensional constraints0
Number of intensional constraints7
Distribution of constraint types[{"type":"intension","count":7},{"type":"allDifferent","count":14},{"type":"element","count":84}]
Optimization problemNO
Type of objective

Solver Data 

0.00/0.00	c NACRE 1.0.4
0.31/0.41	c
0.31/0.41	c # time = 0.4
0.31/0.41	c # Dec = 3930
0.31/0.41	c # Propagate Calls = 1269148
0.31/0.41	c # assignAt Calls = 7442
0.31/0.41	c # removeAt Calls = 292547
0.31/0.41	c # Run = 21
0.31/0.41	c # Conflicts = 3864
0.31/0.41	c # Memory used = 5.044 Mb
0.31/0.41	s UNSATISFIABLE

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 (10676 MiB free)
  memory of node 1: 16384 MiB (12507 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4299090-1532782201/watcher-4299090-1532782201 -o /tmp/evaluation-result-4299090-1532782201/solver-4299090-1532782201 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node139-1532774055-27429 --watchdog 2580 nacre_mini_release HOME/instance-4299090-1532782201.xml -ca -l100 -cm 

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=28241, runsolver pid=28238

[startup+0.100188 s]*
/proc/loadavg: 2.00 2.00 1.98 3/188 28250
/proc/meminfo: memFree=23739016/32770624 swapFree=67108860/67108860
[pid=28241] ppid=28238 vsize=26908 memory=3460 CPUtime=0.1 cores=0,2,4,6
/proc/28241/stat : 28241 (nacre_mini_rele) R 28238 28241 27398 0 -1 4202496 1089 0 0 0 10 0 0 0 20 0 1 0 95783274 27553792 865 33554432000 4194304 4933779 140723621171312 140723621168312 4333242 0 0 4096 24578 0 0 0 17 4 0 0 0 0 0 7034520 7039168 35672064 140723621172376 140723621172476 140723621172476 140723621175234 0
/proc/28241/statm: 6727 865 612 181 0 344 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 26908 KiB
Current children cumulated memory: 3460 KiB

[startup+0.209659 s]*
/proc/loadavg: 2.00 2.00 1.98 3/188 28250
/proc/meminfo: memFree=23737932/32770624 swapFree=67108860/67108860
[pid=28241] ppid=28238 vsize=27620 memory=4252 CPUtime=0.21 cores=0,2,4,6
/proc/28241/stat : 28241 (nacre_mini_rele) R 28238 28241 27398 0 -1 4202496 1240 0 0 0 21 0 0 0 20 0 1 0 95783274 28282880 1063 33554432000 4194304 4933779 140723621171312 140723621168312 4358228 0 0 4096 24578 0 0 0 17 4 0 0 0 0 0 7034520 7039168 35672064 140723621172376 140723621172476 140723621172476 140723621175234 0
/proc/28241/statm: 6905 1063 613 181 0 522 0
Current children cumulated CPU time: 0.21 s
Current children cumulated vsize: 27620 KiB
Current children cumulated memory: 4252 KiB

[startup+0.309081 s]*
/proc/loadavg: 2.00 2.00 1.98 3/188 28250
/proc/meminfo: memFree=23737560/32770624 swapFree=67108860/67108860
[pid=28241] ppid=28238 vsize=28016 memory=4516 CPUtime=0.31 cores=0,2,4,6
/proc/28241/stat : 28241 (nacre_mini_rele) R 28238 28241 27398 0 -1 4202496 1354 0 0 0 31 0 0 0 20 0 1 0 95783274 28688384 1129 33554432000 4194304 4933779 140723621171312 140723621168312 4359669 0 0 4096 24578 0 0 0 17 4 0 0 0 0 0 7034520 7039168 35672064 140723621172376 140723621172476 140723621172476 140723621175234 0
/proc/28241/statm: 7004 1129 613 181 0 621 0
Current children cumulated CPU time: 0.31 s
Current children cumulated vsize: 28016 KiB
Current children cumulated memory: 4516 KiB

[startup+0.417823 s]
# the end of solver process 28241 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=0.409015 s, system=0.006 s

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

[startup+0.408947 s]*
/proc/loadavg: 2.00 2.00 1.98 3/188 28250
/proc/meminfo: memFree=23737188/32770624 swapFree=67108860/67108860
Current children cumulated CPU time: 0 s
Current children cumulated vsize: 0 KiB
Current children cumulated memory: 0 KiB

Child status: 20
Real time (s): 0.417841
CPU time (s): 0.415015
CPU user time (s): 0.409015
CPU system time (s): 0.006
CPU usage (%): 99.3237
Max. virtual memory (cumulated for all children) (KiB): 28016
Max. memory (cumulated for all children) (KiB): 4516

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.409015
system time used= 0.006
maximum resident set size= 5236
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1473
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= 8
involuntary context switches= 1


# summary of solver processes directly reported to runsolver:
#   pid: 28241
#   total CPU time (s): 0.415015
#   total CPU user time (s): 0.409015
#   total CPU system time (s): 0.006

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.027608 second user time and 0.029653 second system time

The end

Launcher Data 

Begin job on node139 at 2018-07-28 14:50:01
IDJOB=4299090
IDBENCH=141293
IDSOLVER=2764
FILE ID=node139/4299090-1532782201
RUNJOBID= node139-1532774055-27429
PBS_JOBID= 21022456
Free space on /tmp= 38716 MiB

SOLVER NAME= NACRE 1.0.4
BENCH NAME= XCSP18/Quasigroups_mini/QuasiGroup-v7-07_mini_c18.xml
COMMAND LINE= nacre_mini_release BENCHNAME -ca -l100 -cm
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4299090-1532782201/watcher-4299090-1532782201 -o /tmp/evaluation-result-4299090-1532782201/solver-4299090-1532782201 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node139-1532774055-27429 --watchdog 2580  nacre_mini_release HOME/instance-4299090-1532782201.xml -ca -l100 -cm

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

MD5SUM BENCH= 90a59188f351c01ffa8267023f43dfb7
RANDOM SEED=645257392

node139.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	: 5333.80
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	: 5333.80
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	: 5333.80
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	: 5333.80
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:        23740936 kB
MemAvailable:   31787136 kB
Buffers:          236312 kB
Cached:          7909212 kB
SwapCached:            0 kB
Active:          3215628 kB
Inactive:        5125872 kB
Active(anon):     150344 kB
Inactive(anon):    73552 kB
Active(file):    3065284 kB
Inactive(file):  5052320 kB
Unevictable:        7312 kB
Mlocked:            7312 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:               796 kB
Writeback:             0 kB
AnonPages:        203300 kB
Mapped:            44348 kB
Shmem:             25228 kB
Slab:             385840 kB
SReclaimable:     357056 kB
SUnreclaim:        28784 kB
KernelStack:        3312 kB
PageTables:         5448 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     498512 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:    131072 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      107904 kB
DirectMap2M:    33437696 kB

Free space on /tmp at the end= 38716 MiB
End job on node139 at 2018-07-28 14:50:02