Trace number 4309661

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
PicatSAT 2018-08-14UNSAT 1.00629 1.01041

General information on the benchmark

NameQuasigroups/
QuasiGroup-4-07_c18.xml
MD5SUM3b77ed50ef14863a53905eb481969062
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 benchmark1.00629
Satisfiable
(Un)Satisfiability was proved
Number of variables98
Number of constraints86
Number of domains2
Minimum domain size7
Maximum domain size49
Distribution of domain sizes[{"size":7,"count":49},{"size":49,"count":42}]
Minimum variable degree0
Maximum variable degree45
Distribution of variable degrees[{"degree":0,"count":7},{"degree":2,"count":42},{"degree":44,"count":7},{"degree":45,"count":42}]
Minimum constraint arity3
Maximum constraint arity50
Distribution of constraint arities[{"arity":3,"count":42},{"arity":7,"count":1},{"arity":49,"count":1},{"arity":50,"count":42}]
Number of extensional constraints0
Number of intensional constraints42
Distribution of constraint types[{"type":"intension","count":42},{"type":"allDifferent","count":1},{"type":"instantiation","count":1},{"type":"element","count":42}]
Optimization problemNO
Type of objective

Solver Data 

1.00/1.01	c xcsp_picat version 2.4#7 (8/14/2018)
1.00/1.01	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 (12935 MiB free)
  memory of node 1: 16384 MiB (9740 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4309661-1534316390/watcher-4309661-1534316390 -o /tmp/evaluation-result-4309661-1534316390/solver-4309661-1534316390 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node148-1534293152-15984 --watchdog 2580 xcsp_picat HOME/instance-4309661-1534316390.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=18966, runsolver pid=18963


[startup+0.100813 s]*
/proc/loadavg: 2.00 2.01 2.05 3/187 18967
/proc/meminfo: memFree=23209296/32770624 swapFree=67108368/67108860
[pid=18966] ppid=18963 vsize=2034996 memory=14844 CPUtime=0.1 cores=0,2,4,6
/proc/18966/stat : 18966 (xcsp_picat) R 18963 18966 15953 0 -1 4202496 1889 0 0 0 10 0 0 0 20 0 1 0 249202112 2083835904 3711 33554432000 4194304 5849940 140737391474192 140737391472600 5360702 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7949816 9396308 21319680 140737391477942 140737391478020 140737391478020 140737391480778 0
/proc/18966/statm: 508749 3711 710 405 0 505693 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 2034996 KiB
Current children cumulated memory: 14844 KiB

[startup+0.209642 s]*
/proc/loadavg: 2.00 2.01 2.05 3/187 18967
/proc/meminfo: memFree=23208924/32770624 swapFree=67108368/67108860
[pid=18966] ppid=18963 vsize=2035060 memory=14944 CPUtime=0.21 cores=0,2,4,6
/proc/18966/stat : 18966 (xcsp_picat) R 18963 18966 15953 0 -1 4202496 1904 0 0 0 21 0 0 0 20 0 1 0 249202112 2083901440 3736 33554432000 4194304 5849940 140737391474192 140737391472600 4207555 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7949816 9396308 21319680 140737391477942 140737391478020 140737391478020 140737391480778 0
/proc/18966/statm: 508765 3736 716 405 0 505709 0
Current children cumulated CPU time: 0.21 s
Current children cumulated vsize: 2035060 KiB
Current children cumulated memory: 14944 KiB

[startup+0.308988 s]*
/proc/loadavg: 2.00 2.01 2.05 3/187 18967
/proc/meminfo: memFree=23208924/32770624 swapFree=67108368/67108860
[pid=18966] ppid=18963 vsize=2035060 memory=14944 CPUtime=0.31 cores=0,2,4,6
/proc/18966/stat : 18966 (xcsp_picat) R 18963 18966 15953 0 -1 4202496 1904 0 0 0 31 0 0 0 20 0 1 0 249202112 2083901440 3736 33554432000 4194304 5849940 140737391474192 140737391472600 4211621 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7949816 9396308 21319680 140737391477942 140737391478020 140737391478020 140737391480778 0
/proc/18966/statm: 508765 3736 716 405 0 505709 0
Current children cumulated CPU time: 0.31 s
Current children cumulated vsize: 2035060 KiB
Current children cumulated memory: 14944 KiB

[startup+0.700237 s]
/proc/loadavg: 2.00 2.01 2.05 3/187 18967
/proc/meminfo: memFree=23208924/32770624 swapFree=67108368/67108860
[pid=18966] ppid=18963 vsize=2035164 memory=14980 CPUtime=0.68 cores=0,2,4,6
/proc/18966/stat : 18966 (xcsp_picat) R 18963 18966 15953 0 -1 4202496 2042 0 0 0 68 0 0 0 20 0 1 0 249202112 2084007936 3745 33554432000 4194304 5849940 140737391474192 140737391473192 140623886946183 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7949816 9396308 21319680 140737391477942 140737391478020 140737391478020 140737391480778 0
/proc/18966/statm: 508791 3745 724 405 0 505735 0
Current children cumulated CPU time: 0.68 s
Current children cumulated vsize: 2035164 KiB
Current children cumulated memory: 14980 KiB

[startup+1.01037 s]
# the end of solver process 18966 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=0.99329 s, system=0.012998 s

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

[startup+0.800251 s]
/proc/loadavg: 2.00 2.01 2.05 3/187 18967
/proc/meminfo: memFree=23208924/32770624 swapFree=67108368/67108860
[pid=18966] ppid=18963 vsize=2034992 memory=14784 CPUtime=0.78 cores=0,2,4,6
/proc/18966/stat : 18966 (xcsp_picat) R 18963 18966 15953 0 -1 4202496 2076 0 0 0 78 0 0 0 20 0 1 0 249202112 2083831808 3696 33554432000 4194304 5849940 140737391474192 140737391473192 5340536 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7949816 9396308 21319680 140737391477942 140737391478020 140737391478020 140737391480778 0
/proc/18966/statm: 508748 3696 724 405 0 505692 0
Current children cumulated CPU time: 0.78 s
Current children cumulated vsize: 2034992 KiB
Current children cumulated memory: 14784 KiB

[startup+1.0002 s]*
/proc/loadavg: 2.00 2.01 2.05 3/187 18967
/proc/meminfo: memFree=23207512/32770624 swapFree=67108368/67108860
[pid=18966] ppid=18963 vsize=2034916 memory=14816 CPUtime=1 cores=0,2,4,6
/proc/18966/stat : 18966 (xcsp_picat) R 18963 18966 15953 0 -1 4202496 2221 0 0 0 99 1 0 0 20 0 1 0 249202112 2083753984 3704 33554432000 4194304 5849940 140737391474192 140737391473192 140623886946183 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7949816 9396308 21319680 140737391477942 140737391478020 140737391478020 140737391480778 0
/proc/18966/statm: 508729 3704 724 405 0 505673 0
Current children cumulated CPU time: 1 s
Current children cumulated vsize: 2034916 KiB
Current children cumulated memory: 14816 KiB

Child status: 0
Real time (s): 1.01041
CPU time (s): 1.00629
CPU user time (s): 0.99329
CPU system time (s): 0.012998
CPU usage (%): 99.5922
Max. virtual memory (cumulated for all children) (KiB): 2035400
Max. memory (cumulated for all children) (KiB): 15328

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.99329
system time used= 0.012998
maximum resident set size= 15332
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2224
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= 4


# summary of solver processes directly reported to runsolver:
#   pid: 18966
#   total CPU time (s): 1.00629
#   total CPU user time (s): 0.99329
#   total CPU system time (s): 0.012998

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.026566 second user time and 0.048213 second system time

The end

Launcher Data 

Begin job on node148 at 2018-08-15 08:59:50
IDJOB=4309661
IDBENCH=141614
IDSOLVER=2794
FILE ID=node148/4309661-1534316390
RUNJOBID= node148-1534293152-15984
PBS_JOBID= 21038138
Free space on /tmp= 42644 MiB

SOLVER NAME= PicatSAT 2018-08-14
BENCH NAME= XCSP18/Quasigroups/QuasiGroup-4-07_c18.xml
COMMAND LINE= xcsp_picat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4309661-1534316390/watcher-4309661-1534316390 -o /tmp/evaluation-result-4309661-1534316390/solver-4309661-1534316390 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node148-1534293152-15984 --watchdog 2580  xcsp_picat HOME/instance-4309661-1534316390.xml

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

MD5SUM BENCH= 3b77ed50ef14863a53905eb481969062
RANDOM SEED=1100565558

node148.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	: 5333.50
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	: 5333.50
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	: 5333.50
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	: 5333.50
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:        23220616 kB
MemAvailable:   31287264 kB
Buffers:          173800 kB
Cached:          8106904 kB
SwapCached:            4 kB
Active:          4965824 kB
Inactive:        3978036 kB
Active(anon):     616432 kB
Inactive(anon):   106944 kB
Active(file):    4349392 kB
Inactive(file):  3871092 kB
Unevictable:        7348 kB
Mlocked:            7348 kB
SwapTotal:      67108860 kB
SwapFree:       67108368 kB
Dirty:              3124 kB
Writeback:             0 kB
AnonPages:        670312 kB
Mapped:            57452 kB
Shmem:             57780 kB
Slab:             303604 kB
SReclaimable:     274624 kB
SUnreclaim:        28980 kB
KernelStack:        3344 kB
PageTables:         6640 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:    2989900 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:    428032 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      116096 kB
DirectMap2M:    33429504 kB

Free space on /tmp at the end= 42644 MiB
End job on node148 at 2018-08-15 08:59:51