Trace number 4309677

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 2018-08-14SAT 0.168527 0.168528

General information on the benchmark

NameSocialGolfers/
SocialGolfers-4-4-4-cp_c18.xml
MD5SUM323265c27f21e70af41ff0037033f3ab
Bench CategoryCSP (decision problem)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.168527
Satisfiable
(Un)Satisfiability was proved
Number of variables64
Number of constraints726
Number of domains1
Minimum domain size4
Maximum domain size4
Distribution of domain sizes[{"size":4,"count":64}]
Minimum variable degree47
Maximum variable degree48
Distribution of variable degrees[{"degree":47,"count":48},{"degree":48,"count":16}]
Minimum constraint arity4
Maximum constraint arity64
Distribution of constraint arities[{"arity":4,"count":720},{"arity":16,"count":5},{"arity":64,"count":1}]
Number of extensional constraints0
Number of intensional constraints720
Distribution of constraint types[{"type":"intension","count":720},{"type":"lex","count":1},{"type":"cardinality","count":4},{"type":"instantiation","count":1}]
Optimization problemNO
Type of objective

Solver Data

0.10/0.16	c xcsp_picat version 2.4#7 (8/14/2018)
0.10/0.16	s SATISFIABLE
0.10/0.16	v <instantiation>
0.10/0.16	v     <list> x[][]  </list> 
0.10/0.16	v     <values> 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 3 1 0 2 0 2 3 1 1 3 2 0 2 0 1 3 3 1 2 0 0 2 1 3 2 0 3 1 1 3 0 2   </values> 
0.10/0.16	v </instantiation>

Verifier Data

OK	

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 (13571 MiB free)
  memory of node 1: 16384 MiB (10362 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4309677-1534307462/watcher-4309677-1534307462 -o /tmp/evaluation-result-4309677-1534307462/solver-4309677-1534307462 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node136-1534293639-21936 --watchdog 2580 xcsp_picat HOME/instance-4309677-1534307462.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=23738, runsolver pid=23735

[startup+0.100091 s]*
/proc/loadavg: 2.02 2.04 2.05 3/188 23739
/proc/meminfo: memFree=24489388/32770624 swapFree=67108172/67108860
[pid=23738] ppid=23735 vsize=2034120 memory=22040 CPUtime=0.1 cores=0,2,4,6
/proc/23738/stat : 23738 (xcsp_picat) R 23735 23738 21905 0 -1 4202496 2082 0 0 0 9 1 0 0 20 0 1 0 248309346 2082938880 5510 33554432000 4194304 5849940 140736394530000 140736394530000 5361599 0 0 4096 8389634 0 0 0 17 4 0 0 0 0 0 7949816 9396308 21839872 140736394536118 140736394536196 140736394536196 140736394538954 0
/proc/23738/statm: 508530 5510 703 405 0 505474 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 2034120 KiB
Current children cumulated memory: 22040 KiB

[startup+0.168488 s]
# the end of solver process 23738 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=0.155494 s, system=0.013033 s

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

[startup+0.100091 s]*
/proc/loadavg: 2.02 2.04 2.05 3/188 23739
/proc/meminfo: memFree=24489388/32770624 swapFree=67108172/67108860
[pid=23738] ppid=23735 vsize=2034120 memory=22040 CPUtime=0.1 cores=0,2,4,6
/proc/23738/stat : 23738 (xcsp_picat) R 23735 23738 21905 0 -1 4202496 2082 0 0 0 9 1 0 0 20 0 1 0 248309346 2082938880 5510 33554432000 4194304 5849940 140736394530000 140736394530000 5361599 0 0 4096 8389634 0 0 0 17 4 0 0 0 0 0 7949816 9396308 21839872 140736394536118 140736394536196 140736394536196 140736394538954 0
/proc/23738/statm: 508530 5510 703 405 0 505474 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 2034120 KiB
Current children cumulated memory: 22040 KiB

Child status: 0
Real time (s): 0.168528
CPU time (s): 0.168527
CPU user time (s): 0.155494
CPU system time (s): 0.013033
CPU usage (%): 99.9994
Max. virtual memory (cumulated for all children) (KiB): 2034120
Max. memory (cumulated for all children) (KiB): 22040

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.155494
system time used= 0.013033
maximum resident set size= 22140
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2106
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: 23738
#   total CPU time (s): 0.168527
#   total CPU user time (s): 0.155494
#   total CPU system time (s): 0.013033

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.009368 second user time and 0.021371 second system time

The end

Launcher Data

Begin job on node136 at 2018-08-15 06:31:02
IDJOB=4309677
IDBENCH=141378
IDSOLVER=2794
FILE ID=node136/4309677-1534307462
RUNJOBID= node136-1534293639-21936
PBS_JOBID= 21038144
Free space on /tmp= 39024 MiB

SOLVER NAME= PicatSAT 2018-08-14
BENCH NAME= XCSP18/SocialGolfers/SocialGolfers-4-4-4-cp_c18.xml
COMMAND LINE= xcsp_picat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4309677-1534307462/watcher-4309677-1534307462 -o /tmp/evaluation-result-4309677-1534307462/solver-4309677-1534307462 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node136-1534293639-21936 --watchdog 2580  xcsp_picat HOME/instance-4309677-1534307462.xml

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

MD5SUM BENCH= 323265c27f21e70af41ff0037033f3ab
RANDOM SEED=1130213056

node136.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:        24508204 kB
MemAvailable:   31723324 kB
Buffers:          122660 kB
Cached:          7320852 kB
SwapCached:           16 kB
Active:          3945792 kB
Inactive:        3725128 kB
Active(anon):     178392 kB
Inactive(anon):   109092 kB
Active(file):    3767400 kB
Inactive(file):  3616036 kB
Unevictable:        7380 kB
Mlocked:            7380 kB
SwapTotal:      67108860 kB
SwapFree:       67108172 kB
Dirty:              2960 kB
Writeback:             0 kB
AnonPages:        234380 kB
Mapped:            57224 kB
Shmem:             57768 kB
Slab:             288360 kB
SReclaimable:     260144 kB
SUnreclaim:        28216 kB
KernelStack:        3360 kB
PageTables:         5784 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:    2533832 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:    118784 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      112000 kB
DirectMap2M:    33433600 kB

Free space on /tmp at the end= 39020 MiB
End job on node136 at 2018-08-15 06:31:02