Trace number 4295842

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_12 2018-06-11_12UNSAT 0.873289 0.873436

General information on the benchmark

NameQuasigroups/
QuasiGroup-7-20_c18.xml
MD5SUM5f66fd9d375fc47cd589a0d8fc089b8f
Bench CategoryCSP (decision problem)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables800
Number of constraints762
Number of domains1
Minimum domain size20
Maximum domain size20
Distribution of domain sizes[{"size":20,"count":780}]
Minimum variable degree0
Maximum variable degree41
Distribution of variable degrees[{"degree":0,"count":20},{"degree":2,"count":380},{"degree":40,"count":20},{"degree":41,"count":380}]
Minimum constraint arity20
Maximum constraint arity400
Distribution of constraint arities[{"arity":20,"count":1},{"arity":22,"count":760},{"arity":400,"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":760}]
Optimization problemNO
Type of objective

Solver Data

0.00/0.00	c Version 18.06.11_12
0.00/0.01	
0.00/0.01	    instantiation constraint
0.00/0.01	        list:x[0][0] x[1][1] x[2][2]  ... x[16][16] x[17][17] x[18][18] x[19][19] 
0.00/0.01	        values:0 1 2  ... 16 17 18 19 
0.79/0.86	s UNSATISFIABLE
0.79/0.86	c  # Nodes: 1169

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 (8509 MiB free)
  memory of node 1: 16384 MiB (11507 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4295842-1532608415/watcher-4295842-1532608415 -o /tmp/evaluation-result-4295842-1532608415/solver-4295842-1532608415 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node105-1532608414-9674 --watchdog 2580 BTD 12 2520 HOME/instance-4295842-1532608415.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=9794, runsolver pid=9789

[startup+0.100201 s]*
/proc/loadavg: 1.08 1.15 1.55 4/202 9795
/proc/meminfo: memFree=20476812/32770624 swapFree=67108860/67108860
[pid=9794] ppid=9789 vsize=43556 memory=13444 CPUtime=0.1 cores=0,2,4,6
/proc/9794/stat : 9794 (BTD) R 9789 9794 8081 0 -1 4202496 3534 0 0 0 10 0 0 0 20 0 1 0 78404677 44601344 3361 33554432000 4194304 36388972 140731765116896 140731765116896 7657238 0 0 4096 0 0 0 0 17 4 0 0 0 0 0 38489992 38625312 63266816 140731765122236 140731765122315 140731765122315 140731765125073 0
/proc/9794/statm: 10889 3361 468 7861 0 2993 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 43556 KiB
Current children cumulated memory: 13444 KiB

[startup+0.209885 s]*
/proc/loadavg: 1.08 1.15 1.55 5/202 9795
/proc/meminfo: memFree=20461496/32770624 swapFree=67108860/67108860
[pid=9794] ppid=9789 vsize=48156 memory=17932 CPUtime=0.21 cores=0,2,4,6
/proc/9794/stat : 9794 (BTD) R 9789 9794 8081 0 -1 4202496 4640 0 0 0 21 0 0 0 20 0 1 0 78404677 49311744 4483 33554432000 4194304 36388972 140731765116896 140731765116896 4601200 0 0 4096 0 0 0 0 17 4 0 0 0 0 0 38489992 38625312 63266816 140731765122236 140731765122315 140731765122315 140731765125073 0
/proc/9794/statm: 12039 4483 487 7861 0 4143 0
Current children cumulated CPU time: 0.21 s
Current children cumulated vsize: 48156 KiB
Current children cumulated memory: 17932 KiB

[startup+0.309746 s]*
/proc/loadavg: 1.08 1.15 1.55 6/202 9795
/proc/meminfo: memFree=20445424/32770624 swapFree=67108860/67108860
[pid=9794] ppid=9789 vsize=48156 memory=17932 CPUtime=0.31 cores=0,2,4,6
/proc/9794/stat : 9794 (BTD) R 9789 9794 8081 0 -1 4202496 4665 0 0 0 31 0 0 0 20 0 1 0 78404677 49311744 4483 33554432000 4194304 36388972 140731765116896 140731765116896 4601187 0 0 4096 0 0 0 0 17 4 0 0 0 0 0 38489992 38625312 63266816 140731765122236 140731765122315 140731765122315 140731765125073 0
/proc/9794/statm: 12039 4483 487 7861 0 4143 0
Current children cumulated CPU time: 0.31 s
Current children cumulated vsize: 48156 KiB
Current children cumulated memory: 17932 KiB

[startup+0.700353 s]
/proc/loadavg: 1.08 1.15 1.55 3/184 9811
/proc/meminfo: memFree=20536660/32770624 swapFree=67108860/67108860
[pid=9794] ppid=9789 vsize=48156 memory=17932 CPUtime=0.69 cores=0,2,4,6
/proc/9794/stat : 9794 (BTD) R 9789 9794 8081 0 -1 4202496 4668 0 0 0 69 0 0 0 20 0 1 0 78404677 49311744 4483 33554432000 4194304 36388972 140731765116896 140731765116896 8047815 0 0 4096 0 0 0 0 17 4 0 0 0 0 0 38489992 38625312 63266816 140731765122236 140731765122315 140731765122315 140731765125073 0
/proc/9794/statm: 12039 4483 487 7861 0 4143 0
Current children cumulated CPU time: 0.69 s
Current children cumulated vsize: 48156 KiB
Current children cumulated memory: 17932 KiB

[startup+0.873386 s]
# the end of solver process 9794 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=0.867288 s, system=0.006001 s

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

[startup+0.800383 s]
/proc/loadavg: 1.08 1.15 1.55 3/184 9811
/proc/meminfo: memFree=20536660/32770624 swapFree=67108860/67108860
[pid=9794] ppid=9789 vsize=48156 memory=17932 CPUtime=0.79 cores=0,2,4,6
/proc/9794/stat : 9794 (BTD) R 9789 9794 8081 0 -1 4202496 4670 0 0 0 79 0 0 0 20 0 1 0 78404677 49311744 4483 33554432000 4194304 36388972 140731765116896 140731765116896 8047815 0 0 4096 0 0 0 0 17 4 0 0 0 0 0 38489992 38625312 63266816 140731765122236 140731765122315 140731765122315 140731765125073 0
/proc/9794/statm: 12039 4483 487 7861 0 4143 0
Current children cumulated CPU time: 0.79 s
Current children cumulated vsize: 48156 KiB
Current children cumulated memory: 17932 KiB

Child status: 0
Real time (s): 0.873436
CPU time (s): 0.873289
CPU user time (s): 0.867288
CPU system time (s): 0.006001
CPU usage (%): 99.9832
Max. virtual memory (cumulated for all children) (KiB): 48156
Max. memory (cumulated for all children) (KiB): 17932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.867288
system time used= 0.006001
maximum resident set size= 17952
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4675
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


# summary of solver processes directly reported to runsolver:
#   pid: 9794
#   total CPU time (s): 0.873289
#   total CPU user time (s): 0.867288
#   total CPU system time (s): 0.006001

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.022121 second user time and 0.047378 second system time

The end

Launcher Data

Begin job on node105 at 2018-07-26 14:33:35
IDJOB=4295842
IDBENCH=141608
IDSOLVER=2748
FILE ID=node105/4295842-1532608415
RUNJOBID= node105-1532608414-9674
PBS_JOBID= 21021977
Free space on /tmp= 44572 MiB

SOLVER NAME= BTD_12 2018-06-11_12
BENCH NAME= XCSP18/Quasigroups/QuasiGroup-7-20_c18.xml
COMMAND LINE= BTD 12 TIMELIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4295842-1532608415/watcher-4295842-1532608415 -o /tmp/evaluation-result-4295842-1532608415/solver-4295842-1532608415 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node105-1532608414-9674 --watchdog 2580  BTD 12 2520 HOME/instance-4295842-1532608415.xml

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

MD5SUM BENCH= 5f66fd9d375fc47cd589a0d8fc089b8f
RANDOM SEED=27046665

node105.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	: 5333.32
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	: 5333.32
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	: 5333.32
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	: 5333.32
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:        20498908 kB
MemAvailable:   31923824 kB
Buffers:          245536 kB
Cached:         11321052 kB
SwapCached:            0 kB
Active:          2384700 kB
Inactive:        9243104 kB
Active(anon):      16168 kB
Inactive(anon):    73432 kB
Active(file):    2368532 kB
Inactive(file):  9169672 kB
Unevictable:        7328 kB
Mlocked:            7328 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:            105360 kB
Writeback:             0 kB
AnonPages:         66948 kB
Mapped:            47864 kB
Shmem:             25228 kB
Slab:             342612 kB
SReclaimable:     315172 kB
SUnreclaim:        27440 kB
KernelStack:        3344 kB
PageTables:         5284 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:    1268808 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:      8192 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      130432 kB
DirectMap2M:    33415168 kB

Free space on /tmp at the end= 44520 MiB
End job on node105 at 2018-07-26 14:33:36