Trace number 4309670

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 1.56101 1.56555

General information on the benchmark

NameQuasigroups/
QuasiGroup-7-08_c18.xml
MD5SUMf8c10a8313da5da6e599be620e9e581f
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 benchmark1.55614
Satisfiable
(Un)Satisfiability was proved
Number of variables128
Number of constraints114
Number of domains1
Minimum domain size8
Maximum domain size8
Distribution of domain sizes[{"size":8,"count":120}]
Minimum variable degree0
Maximum variable degree17
Distribution of variable degrees[{"degree":0,"count":8},{"degree":2,"count":56},{"degree":16,"count":8},{"degree":17,"count":56}]
Minimum constraint arity8
Maximum constraint arity64
Distribution of constraint arities[{"arity":8,"count":1},{"arity":10,"count":112},{"arity":64,"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":112}]
Optimization problemNO
Type of objective

Solver Data 

1.49/1.56	c xcsp_picat version 2.4#7 (8/14/2018)
1.49/1.56	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 (11131 MiB free)
  memory of node 1: 16384 MiB (12891 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4309670-1534317079/watcher-4309670-1534317079 -o /tmp/evaluation-result-4309670-1534317079/solver-4309670-1534317079 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node132-1534293327-696 --watchdog 2580 xcsp_picat HOME/instance-4309670-1534317079.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=3969, runsolver pid=3966

[startup+0.1005 s]*
/proc/loadavg: 2.00 2.05 2.06 3/191 3970
/proc/meminfo: memFree=24588316/32770624 swapFree=67108856/67108860
[pid=3969] ppid=3966 vsize=2034024 memory=14168 CPUtime=0.1 cores=0,2,4,6
/proc/3969/stat : 3969 (xcsp_picat) R 3966 3969 665 0 -1 4202496 1703 0 0 0 9 1 0 0 20 0 1 0 249271048 2082840576 3542 33554432000 4194304 5849940 140721755856656 140721755855880 140028527923079 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7949816 9396308 42713088 140721755862198 140721755862276 140721755862276 140721755865034 0
/proc/3969/statm: 508506 3542 672 405 0 505450 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 2034024 KiB
Current children cumulated memory: 14168 KiB

[startup+0.209778 s]*
/proc/loadavg: 2.00 2.05 2.06 3/191 3970
/proc/meminfo: memFree=24588316/32770624 swapFree=67108856/67108860
[pid=3969] ppid=3966 vsize=2034376 memory=14824 CPUtime=0.21 cores=0,2,4,6
/proc/3969/stat : 3969 (xcsp_picat) R 3966 3969 665 0 -1 4202496 1884 0 0 0 20 1 0 0 20 0 1 0 249271048 2083201024 3706 33554432000 4194304 5849940 140721755856656 140721755855880 5362000 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7949816 9396308 42713088 140721755862198 140721755862276 140721755862276 140721755865034 0
/proc/3969/statm: 508594 3706 690 405 0 505538 0
Current children cumulated CPU time: 0.21 s
Current children cumulated vsize: 2034376 KiB
Current children cumulated memory: 14824 KiB

[startup+0.309029 s]*
/proc/loadavg: 2.00 2.05 2.06 3/191 3970
/proc/meminfo: memFree=24588316/32770624 swapFree=67108856/67108860
[pid=3969] ppid=3966 vsize=2034368 memory=14844 CPUtime=0.3 cores=0,2,4,6
/proc/3969/stat : 3969 (xcsp_picat) R 3966 3969 665 0 -1 4202496 1910 0 0 0 29 1 0 0 20 0 1 0 249271048 2083192832 3711 33554432000 4194304 5849940 140721755856656 140721755855880 140028527923079 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7949816 9396308 42713088 140721755862198 140721755862276 140721755862276 140721755865034 0
/proc/3969/statm: 508592 3711 697 405 0 505536 0
Current children cumulated CPU time: 0.3 s
Current children cumulated vsize: 2034368 KiB
Current children cumulated memory: 14844 KiB

[startup+0.700225 s]
/proc/loadavg: 2.00 2.05 2.06 3/191 3970
/proc/meminfo: memFree=24587960/32770624 swapFree=67108856/67108860
[pid=3969] ppid=3966 vsize=2034924 memory=15216 CPUtime=0.69 cores=0,2,4,6
/proc/3969/stat : 3969 (xcsp_picat) R 3966 3969 665 0 -1 4202496 2173 0 0 0 67 2 0 0 20 0 1 0 249271048 2083762176 3804 33554432000 4194304 5849940 140721755856656 140721755855880 5335727 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7949816 9396308 42713088 140721755862198 140721755862276 140721755862276 140721755865034 0
/proc/3969/statm: 508731 3804 705 405 0 505675 0
Current children cumulated CPU time: 0.69 s
Current children cumulated vsize: 2034924 KiB
Current children cumulated memory: 15216 KiB

[startup+1.50023 s]
/proc/loadavg: 2.00 2.05 2.06 3/191 3970
/proc/meminfo: memFree=24586844/32770624 swapFree=67108856/67108860
[pid=3969] ppid=3966 vsize=2035576 memory=16036 CPUtime=1.49 cores=0,2,4,6
/proc/3969/stat : 3969 (xcsp_picat) R 3966 3969 665 0 -1 4202496 2732 0 0 0 146 3 0 0 20 0 1 0 249271048 2084429824 4009 33554432000 4194304 5849940 140721755856656 140721755855656 140028527923079 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7949816 9396308 42713088 140721755862198 140721755862276 140721755862276 140721755865034 0
/proc/3969/statm: 508894 4009 705 405 0 505838 0
Current children cumulated CPU time: 1.49 s
Current children cumulated vsize: 2035576 KiB
Current children cumulated memory: 16036 KiB

[startup+1.56553 s]
# the end of solver process 3969 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=1.52901 s, system=0.032001 s

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

[startup+1.50023 s]
/proc/loadavg: 2.00 2.05 2.06 3/191 3970
/proc/meminfo: memFree=24586844/32770624 swapFree=67108856/67108860
[pid=3969] ppid=3966 vsize=2035576 memory=16036 CPUtime=1.49 cores=0,2,4,6
/proc/3969/stat : 3969 (xcsp_picat) R 3966 3969 665 0 -1 4202496 2732 0 0 0 146 3 0 0 20 0 1 0 249271048 2084429824 4009 33554432000 4194304 5849940 140721755856656 140721755855656 140028527923079 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7949816 9396308 42713088 140721755862198 140721755862276 140721755862276 140721755865034 0
/proc/3969/statm: 508894 4009 705 405 0 505838 0
Current children cumulated CPU time: 1.49 s
Current children cumulated vsize: 2035576 KiB
Current children cumulated memory: 16036 KiB

Child status: 0
Real time (s): 1.56555
CPU time (s): 1.56101
CPU user time (s): 1.52901
CPU system time (s): 0.032001
CPU usage (%): 99.7106
Max. virtual memory (cumulated for all children) (KiB): 2035748
Max. memory (cumulated for all children) (KiB): 16132

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.52901
system time used= 0.032001
maximum resident set size= 16332
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2781
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= 3


# summary of solver processes directly reported to runsolver:
#   pid: 3969
#   total CPU time (s): 1.56101
#   total CPU user time (s): 1.52901
#   total CPU system time (s): 0.032001

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.02966 second user time and 0.047048 second system time

The end

Launcher Data 

Begin job on node132 at 2018-08-15 09:11:19
IDJOB=4309670
IDBENCH=141618
IDSOLVER=2794
FILE ID=node132/4309670-1534317079
RUNJOBID= node132-1534293327-696
PBS_JOBID= 21038142
Free space on /tmp= 38896 MiB

SOLVER NAME= PicatSAT 2018-08-14
BENCH NAME= XCSP18/Quasigroups/QuasiGroup-7-08_c18.xml
COMMAND LINE= xcsp_picat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4309670-1534317079/watcher-4309670-1534317079 -o /tmp/evaluation-result-4309670-1534317079/solver-4309670-1534317079 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node132-1534293327-696 --watchdog 2580  xcsp_picat HOME/instance-4309670-1534317079.xml

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

MD5SUM BENCH= f8c10a8313da5da6e599be620e9e581f
RANDOM SEED=1568101310

node132.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	: 5333.65
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	: 5333.65
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	: 5333.65
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	: 5333.65
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:        24600576 kB
MemAvailable:   31672892 kB
Buffers:          222380 kB
Cached:          7083968 kB
SwapCached:            4 kB
Active:          4054640 kB
Inactive:        3530260 kB
Active(anon):     228660 kB
Inactive(anon):   110864 kB
Active(file):    3825980 kB
Inactive(file):  3419396 kB
Unevictable:        6984 kB
Mlocked:            6984 kB
SwapTotal:      67108860 kB
SwapFree:       67108856 kB
Dirty:              3128 kB
Writeback:             0 kB
AnonPages:        285860 kB
Mapped:            60380 kB
Shmem:             58012 kB
Slab:             283740 kB
SReclaimable:     255400 kB
SUnreclaim:        28340 kB
KernelStack:        3408 kB
PageTables:         6252 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:    2574956 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:    153600 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      120192 kB
DirectMap2M:    33425408 kB

Free space on /tmp at the end= 38896 MiB
End job on node132 at 2018-08-15 09:11:20