Trace number 4295938

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 2018-06-15UNSAT 1.56747 1.56771

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#4 (June 15, 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 (9147 MiB free)
  memory of node 1: 16384 MiB (11136 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4295938-1532587730/watcher-4295938-1532587730 -o /tmp/evaluation-result-4295938-1532587730/solver-4295938-1532587730 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node134-1532562373-32761 --watchdog 2580 xcsp_picat HOME/instance-4295938-1532587730.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=3294, runsolver pid=3291

[startup+0.100195 s]*
/proc/loadavg: 2.00 2.01 2.05 3/190 3295
/proc/meminfo: memFree=20757996/32770624 swapFree=67108860/67108860
[pid=3294] ppid=3291 vsize=119976 memory=14896 CPUtime=0.1 cores=0,2,4,6
/proc/3294/stat : 3294 (xcsp_picat) R 3291 3294 32730 0 -1 4202496 1351 0 0 0 9 1 0 0 20 0 1 0 76336189 122855424 3724 33554432000 4194304 5849740 140721403429136 140721403429136 140243150651271 0 0 4096 8389634 0 0 0 17 2 0 0 0 0 0 7949816 9399828 38297600 140721403434166 140721403434244 140721403434244 140721403437002 0
/proc/3294/statm: 29994 3724 671 405 0 26938 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 119976 KiB
Current children cumulated memory: 14896 KiB

[startup+0.209819 s]*
/proc/loadavg: 2.00 2.01 2.05 3/190 3295
/proc/meminfo: memFree=20757996/32770624 swapFree=67108860/67108860
[pid=3294] ppid=3291 vsize=120284 memory=15424 CPUtime=0.2 cores=0,2,4,6
/proc/3294/stat : 3294 (xcsp_picat) R 3291 3294 32730 0 -1 4202496 1532 0 0 0 19 1 0 0 20 0 1 0 76336189 123170816 3856 33554432000 4194304 5849740 140721403429136 140721403429136 5361320 0 0 4096 8389634 0 0 0 17 2 0 0 0 0 0 7949816 9399828 38297600 140721403434166 140721403434244 140721403434244 140721403437002 0
/proc/3294/statm: 30071 3856 689 405 0 27015 0
Current children cumulated CPU time: 0.2 s
Current children cumulated vsize: 120284 KiB
Current children cumulated memory: 15424 KiB

[startup+0.30908 s]*
/proc/loadavg: 2.00 2.01 2.05 3/190 3295
/proc/meminfo: memFree=20757624/32770624 swapFree=67108860/67108860
[pid=3294] ppid=3291 vsize=120436 memory=15464 CPUtime=0.3 cores=0,2,4,6
/proc/3294/stat : 3294 (xcsp_picat) R 3291 3294 32730 0 -1 4202496 1574 0 0 0 29 1 0 0 20 0 1 0 76336189 123326464 3866 33554432000 4194304 5849740 140721403429136 140721403429136 140243150651271 0 0 4096 8389634 0 0 0 17 2 0 0 0 0 0 7949816 9399828 38297600 140721403434166 140721403434244 140721403434244 140721403437002 0
/proc/3294/statm: 30109 3866 696 405 0 27053 0
Current children cumulated CPU time: 0.3 s
Current children cumulated vsize: 120436 KiB
Current children cumulated memory: 15464 KiB

[startup+0.700334 s]
/proc/loadavg: 2.00 2.01 2.05 3/190 3295
/proc/meminfo: memFree=20757624/32770624 swapFree=67108860/67108860
[pid=3294] ppid=3291 vsize=120868 memory=15852 CPUtime=0.69 cores=0,2,4,6
/proc/3294/stat : 3294 (xcsp_picat) R 3291 3294 32730 0 -1 4202496 1841 0 0 0 67 2 0 0 20 0 1 0 76336189 123768832 3963 33554432000 4194304 5849740 140721403429136 140721403429136 140243150651271 0 0 4096 8389634 0 0 0 17 2 0 0 0 0 0 7949816 9399828 38297600 140721403434166 140721403434244 140721403434244 140721403437002 0
/proc/3294/statm: 30217 3963 704 405 0 27161 0
Current children cumulated CPU time: 0.69 s
Current children cumulated vsize: 120868 KiB
Current children cumulated memory: 15852 KiB

[startup+1.50034 s]
/proc/loadavg: 2.00 2.01 2.05 3/190 3295
/proc/meminfo: memFree=20756376/32770624 swapFree=67108860/67108860
[pid=3294] ppid=3291 vsize=121544 memory=16680 CPUtime=1.49 cores=0,2,4,6
/proc/3294/stat : 3294 (xcsp_picat) R 3291 3294 32730 0 -1 4202496 2395 0 0 0 146 3 0 0 20 0 1 0 76336189 124461056 4170 33554432000 4194304 5849740 140721403429136 140721403428136 140243150651271 0 0 4096 8389634 0 0 0 17 2 0 0 0 0 0 7949816 9399828 38297600 140721403434166 140721403434244 140721403434244 140721403437002 0
/proc/3294/statm: 30386 4170 704 405 0 27330 0
Current children cumulated CPU time: 1.49 s
Current children cumulated vsize: 121544 KiB
Current children cumulated memory: 16680 KiB

[startup+1.56769 s]
# the end of solver process 3294 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=1.53248 s, system=0.034993 s

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

[startup+1.50034 s]
/proc/loadavg: 2.00 2.01 2.05 3/190 3295
/proc/meminfo: memFree=20756376/32770624 swapFree=67108860/67108860
[pid=3294] ppid=3291 vsize=121544 memory=16680 CPUtime=1.49 cores=0,2,4,6
/proc/3294/stat : 3294 (xcsp_picat) R 3291 3294 32730 0 -1 4202496 2395 0 0 0 146 3 0 0 20 0 1 0 76336189 124461056 4170 33554432000 4194304 5849740 140721403429136 140721403428136 140243150651271 0 0 4096 8389634 0 0 0 17 2 0 0 0 0 0 7949816 9399828 38297600 140721403434166 140721403434244 140721403434244 140721403437002 0
/proc/3294/statm: 30386 4170 704 405 0 27330 0
Current children cumulated CPU time: 1.49 s
Current children cumulated vsize: 121544 KiB
Current children cumulated memory: 16680 KiB

Child status: 0
Real time (s): 1.56771
CPU time (s): 1.56747
CPU user time (s): 1.53248
CPU system time (s): 0.034993
CPU usage (%): 99.9847
Max. virtual memory (cumulated for all children) (KiB): 121648
Max. memory (cumulated for all children) (KiB): 16768

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.53248
system time used= 0.034993
maximum resident set size= 16920
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2444
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= 5


# summary of solver processes directly reported to runsolver:
#   pid: 3294
#   total CPU time (s): 1.56747
#   total CPU user time (s): 1.53248
#   total CPU system time (s): 0.034993

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.030507 second user time and 0.046286 second system time

The end

Launcher Data 

Begin job on node134 at 2018-07-26 08:48:50
IDJOB=4295938
IDBENCH=141618
IDSOLVER=2754
FILE ID=node134/4295938-1532587730
RUNJOBID= node134-1532562373-32761
PBS_JOBID= 21021958
Free space on /tmp= 55560 MiB

SOLVER NAME= PicatSAT 2018-06-15
BENCH NAME= XCSP18/Quasigroups/QuasiGroup-7-08_c18.xml
COMMAND LINE= xcsp_picat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4295938-1532587730/watcher-4295938-1532587730 -o /tmp/evaluation-result-4295938-1532587730/solver-4295938-1532587730 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node134-1532562373-32761 --watchdog 2580  xcsp_picat HOME/instance-4295938-1532587730.xml

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

MD5SUM BENCH= f8c10a8313da5da6e599be620e9e581f
RANDOM SEED=1001063211

node134.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	: 5333.68
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	: 5333.68
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	: 5333.68
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	: 5333.68
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:        20770416 kB
MemAvailable:   31822452 kB
Buffers:          220920 kB
Cached:         11091436 kB
SwapCached:            0 kB
Active:          2250436 kB
Inactive:        9254512 kB
Active(anon):     143836 kB
Inactive(anon):    76428 kB
Active(file):    2106600 kB
Inactive(file):  9178084 kB
Unevictable:        7396 kB
Mlocked:            7396 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:              3252 kB
Writeback:             0 kB
AnonPages:        199352 kB
Mapped:            42892 kB
Shmem:             25248 kB
Slab:             194160 kB
SReclaimable:     166372 kB
SUnreclaim:        27788 kB
KernelStack:        3616 kB
PageTables:         5396 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     581824 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:    124928 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= 55556 MiB
End job on node134 at 2018-07-26 08:48:51