Trace number 4299325

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
NACRE 1.0.4UNSAT 0.535821 0.536408

General information on the benchmark

NameLangford/
LangfordBin-06_c18.xml
MD5SUM067c7c3f6995d0e6d34aa4db2f294f93
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 benchmark0.203771
Satisfiable
(Un)Satisfiability was proved
Number of variables24
Number of constraints18
Number of domains2
Minimum domain size6
Maximum domain size12
Distribution of domain sizes[{"size":6,"count":12},{"size":12,"count":12}]
Minimum variable degree2
Maximum variable degree12
Distribution of variable degrees[{"degree":2,"count":12},{"degree":12,"count":12}]
Minimum constraint arity2
Maximum constraint arity13
Distribution of constraint arities[{"arity":2,"count":6},{"arity":13,"count":12}]
Number of extensional constraints0
Number of intensional constraints6
Distribution of constraint types[{"type":"intension","count":6},{"type":"element","count":12}]
Optimization problemNO
Type of objective

Solver Data 

0.00/0.00	c NACRE 1.0.4
0.51/0.53	c
0.51/0.53	c # time = 0.53
0.51/0.53	c # Dec = 17148
0.51/0.53	c # Propagate Calls = 763946
0.51/0.53	c # assignAt Calls = 86899
0.51/0.53	c # removeAt Calls = 330301
0.51/0.53	c # Run = 63
0.51/0.53	c # Conflicts = 16943
0.51/0.53	c # Memory used = 9.252 Mb
0.51/0.53	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 (10675 MiB free)
  memory of node 1: 16384 MiB (12424 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4299325-1532784921/watcher-4299325-1532784921 -o /tmp/evaluation-result-4299325-1532784921/solver-4299325-1532784921 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node139-1532774055-27429 --watchdog 2580 nacre_mini_release HOME/instance-4299325-1532784921.xml -ca -l100 -cm 

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=28777, runsolver pid=28774

[startup+0.100195 s]*
/proc/loadavg: 2.08 2.03 2.05 3/187 28778
/proc/meminfo: memFree=23652984/32770624 swapFree=67108860/67108860
[pid=28777] ppid=28774 vsize=28000 memory=4572 CPUtime=0.1 cores=0,2,4,6
/proc/28777/stat : 28777 (nacre_mini_rele) R 28774 28777 27398 0 -1 4202496 1364 0 0 0 10 0 0 0 20 0 1 0 96055309 28672000 1143 33554432000 4194304 4933779 140720322036864 140720322033864 139774404574181 0 0 4096 24578 0 0 0 17 4 0 0 0 0 0 7034520 7039168 32329728 140720322045080 140720322045180 140720322045180 140720322047938 0
/proc/28777/statm: 7000 1143 610 181 0 617 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 28000 KiB
Current children cumulated memory: 4572 KiB

[startup+0.209525 s]*
/proc/loadavg: 2.08 2.03 2.05 3/187 28778
/proc/meminfo: memFree=23651124/32770624 swapFree=67108860/67108860
[pid=28777] ppid=28774 vsize=29680 memory=6420 CPUtime=0.21 cores=0,2,4,6
/proc/28777/stat : 28777 (nacre_mini_rele) R 28774 28777 27398 0 -1 4202496 1784 0 0 0 21 0 0 0 20 0 1 0 96055309 30392320 1605 33554432000 4194304 4933779 140720322036864 140720322033864 139774404574181 0 0 4096 24578 0 0 0 17 4 0 0 0 0 0 7034520 7039168 32329728 140720322045080 140720322045180 140720322045180 140720322047938 0
/proc/28777/statm: 7420 1605 610 181 0 1037 0
Current children cumulated CPU time: 0.21 s
Current children cumulated vsize: 29680 KiB
Current children cumulated memory: 6420 KiB

[startup+0.309043 s]*
/proc/loadavg: 2.08 2.03 2.05 4/187 28778
/proc/meminfo: memFree=23649900/32770624 swapFree=67108860/67108860
[pid=28777] ppid=28774 vsize=31492 memory=7932 CPUtime=0.31 cores=0,2,4,6
/proc/28777/stat : 28777 (nacre_mini_rele) R 28774 28777 27398 0 -1 4202496 2207 0 0 0 31 0 0 0 20 0 1 0 96055309 32247808 1983 33554432000 4194304 4933779 140720322036864 140720322033864 139774404622240 0 0 4096 24578 0 0 0 17 4 0 0 0 0 0 7034520 7039168 32329728 140720322045080 140720322045180 140720322045180 140720322047938 0
/proc/28777/statm: 7873 1983 610 181 0 1490 0
Current children cumulated CPU time: 0.31 s
Current children cumulated vsize: 31492 KiB
Current children cumulated memory: 7932 KiB

[startup+0.536361 s]
# the end of solver process 28777 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=0.530825 s, system=0.004996 s

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

[startup+0.409073 s]*
/proc/loadavg: 2.08 2.03 2.05 3/187 28778
/proc/meminfo: memFree=23649156/32770624 swapFree=67108860/67108860
[pid=28777] ppid=28774 vsize=32200 memory=8724 CPUtime=0.41 cores=0,2,4,6
/proc/28777/stat : 28777 (nacre_mini_rele) R 28774 28777 27398 0 -1 4202496 2406 0 0 0 41 0 0 0 20 0 1 0 96055309 32972800 2181 33554432000 4194304 4933779 140720322036864 140720322033864 139774405318012 0 0 4096 24578 0 0 0 17 4 0 0 0 0 0 7034520 7039168 32329728 140720322045080 140720322045180 140720322045180 140720322047938 0
/proc/28777/statm: 8050 2181 610 181 0 1667 0
Current children cumulated CPU time: 0.41 s
Current children cumulated vsize: 32200 KiB
Current children cumulated memory: 8724 KiB

[startup+0.509175 s]*
/proc/loadavg: 2.08 2.03 2.05 3/187 28778
/proc/meminfo: memFree=23648412/32770624 swapFree=67108860/67108860
[pid=28777] ppid=28774 vsize=32772 memory=9252 CPUtime=0.51 cores=0,2,4,6
/proc/28777/stat : 28777 (nacre_mini_rele) R 28774 28777 27398 0 -1 4202496 2544 0 0 0 51 0 0 0 20 0 1 0 96055309 33558528 2313 33554432000 4194304 4933779 140720322036864 140720322033864 4437389 0 0 4096 24578 0 0 0 17 4 0 0 0 0 0 7034520 7039168 32329728 140720322045080 140720322045180 140720322045180 140720322047938 0
/proc/28777/statm: 8193 2313 610 181 0 1810 0
Current children cumulated CPU time: 0.51 s
Current children cumulated vsize: 32772 KiB
Current children cumulated memory: 9252 KiB

Child status: 20
Real time (s): 0.536408
CPU time (s): 0.535821
CPU user time (s): 0.530825
CPU system time (s): 0.004996
CPU usage (%): 99.8906
Max. virtual memory (cumulated for all children) (KiB): 32772
Max. memory (cumulated for all children) (KiB): 9252

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.530825
system time used= 0.004996
maximum resident set size= 9408
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2564
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= 6
involuntary context switches= 1


# summary of solver processes directly reported to runsolver:
#   pid: 28777
#   total CPU time (s): 0.535821
#   total CPU user time (s): 0.530825
#   total CPU system time (s): 0.004996

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.028193 second user time and 0.037591 second system time

The end

Launcher Data 

Begin job on node139 at 2018-07-28 15:35:21
IDJOB=4299325
IDBENCH=141346
IDSOLVER=2764
FILE ID=node139/4299325-1532784921
RUNJOBID= node139-1532774055-27429
PBS_JOBID= 21022456
Free space on /tmp= 38716 MiB

SOLVER NAME= NACRE 1.0.4
BENCH NAME= XCSP18/Langford/LangfordBin-06_c18.xml
COMMAND LINE= nacre_mini_release BENCHNAME -ca -l100 -cm
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4299325-1532784921/watcher-4299325-1532784921 -o /tmp/evaluation-result-4299325-1532784921/solver-4299325-1532784921 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node139-1532774055-27429 --watchdog 2580  nacre_mini_release HOME/instance-4299325-1532784921.xml -ca -l100 -cm

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

MD5SUM BENCH= 067c7c3f6995d0e6d34aa4db2f294f93
RANDOM SEED=1574309705

node139.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	: 5333.80
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	: 5333.80
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	: 5333.80
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	: 5333.80
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:        23655356 kB
MemAvailable:   31702972 kB
Buffers:          236588 kB
Cached:          7910440 kB
SwapCached:            0 kB
Active:          3300060 kB
Inactive:        5126604 kB
Active(anon):     234100 kB
Inactive(anon):    73552 kB
Active(file):    3065960 kB
Inactive(file):  5053052 kB
Unevictable:        7312 kB
Mlocked:            7312 kB
SwapTotal:      67108860 kB
SwapFree:       67108860 kB
Dirty:              1136 kB
Writeback:             0 kB
AnonPages:        296880 kB
Mapped:            44356 kB
Shmem:             25228 kB
Slab:             385844 kB
SReclaimable:     357064 kB
SUnreclaim:        28780 kB
KernelStack:        3568 kB
PageTables:         5912 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:     580980 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:    225280 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      107904 kB
DirectMap2M:    33437696 kB

Free space on /tmp at the end= 38716 MiB
End job on node139 at 2018-07-28 15:35:22