Trace number 4303340

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 2018-08-02UNSAT 0.493434 0.493533

General information on the benchmark

NameSocialGolfers/
SocialGolfers-4-4-7-cp_c18.xml
MD5SUM6202e41c7df8f203e59ab292b28f5059
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 benchmark0.473528
Satisfiable
(Un)Satisfiability was proved
Number of variables112
Number of constraints2529
Number of domains1
Minimum domain size4
Maximum domain size4
Distribution of domain sizes[{"size":4,"count":112}]
Minimum variable degree92
Maximum variable degree93
Distribution of variable degrees[{"degree":92,"count":96},{"degree":93,"count":16}]
Minimum constraint arity4
Maximum constraint arity112
Distribution of constraint arities[{"arity":4,"count":2520},{"arity":16,"count":8},{"arity":112,"count":1}]
Number of extensional constraints0
Number of intensional constraints2520
Distribution of constraint types[{"type":"intension","count":2520},{"type":"lex","count":1},{"type":"cardinality","count":7},{"type":"instantiation","count":1}]
Optimization problemNO
Type of objective

Solver Data 

0.40/0.49	c xcsp_picat version 2.4#6 (8/1/2018)
0.40/0.49	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 (3182 MiB free)
  memory of node 1: 16384 MiB (3306 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4303340-1534015469/watcher-4303340-1534015469 -o /tmp/evaluation-result-4303340-1534015469/solver-4303340-1534015469 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node148-1533990783-10865 --watchdog 2580 xcsp_picat HOME/instance-4303340-1534015469.xml 

running on 4 cores: 1,3,5,7

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=13896, runsolver pid=13893

[startup+0.100169 s]*
/proc/loadavg: 2.14 2.03 2.05 3/187 13897
/proc/meminfo: memFree=6623084/32770624 swapFree=67108404/67108860
[pid=13896] ppid=13893 vsize=2033560 memory=26436 CPUtime=0.1 cores=1,3,5,7
/proc/13896/stat : 13896 (xcsp_picat) R 13893 13896 10833 0 -1 4202496 1687 0 0 0 10 0 0 0 20 0 1 0 219110102 2082365440 6609 33554432000 4194304 5849708 140735737130880 140735737130880 5062817 0 0 4096 8389634 0 0 0 17 1 0 0 0 0 0 7949816 9394900 47259648 140735737132214 140735737132292 140735737132292 140735737135050 0
/proc/13896/statm: 508390 6609 619 405 0 505335 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 2033560 KiB
Current children cumulated memory: 26436 KiB

[startup+0.209798 s]*
/proc/loadavg: 2.14 2.03 2.05 3/187 13897
/proc/meminfo: memFree=6617500/32770624 swapFree=67108404/67108860
[pid=13896] ppid=13893 vsize=2034612 memory=30044 CPUtime=0.21 cores=1,3,5,7
/proc/13896/stat : 13896 (xcsp_picat) R 13893 13896 10833 0 -1 4202496 2166 0 0 0 19 2 0 0 20 0 1 0 219110102 2083442688 7511 33554432000 4194304 5849708 140735737130880 140735737130880 5391962 0 0 4096 8389634 0 0 0 17 1 0 0 0 0 0 7949816 9394900 47259648 140735737132214 140735737132292 140735737132292 140735737135050 0
/proc/13896/statm: 508653 7511 692 405 0 505598 0
Current children cumulated CPU time: 0.21 s
Current children cumulated vsize: 2034612 KiB
Current children cumulated memory: 30044 KiB

[startup+0.309564 s]*
/proc/loadavg: 2.14 2.03 2.05 3/187 13897
/proc/meminfo: memFree=6617128/32770624 swapFree=67108404/67108860
[pid=13896] ppid=13893 vsize=2035236 memory=30472 CPUtime=0.3 cores=1,3,5,7
/proc/13896/stat : 13896 (xcsp_picat) R 13893 13896 10833 0 -1 4202496 2309 0 0 0 28 2 0 0 20 0 1 0 219110102 2084081664 7618 33554432000 4194304 5849708 140735737130880 140735737130880 139933763876697 0 0 4096 8389634 0 0 0 17 1 0 0 0 0 0 7949816 9394900 47259648 140735737132214 140735737132292 140735737132292 140735737135050 0
/proc/13896/statm: 508809 7618 706 405 0 505754 0
Current children cumulated CPU time: 0.3 s
Current children cumulated vsize: 2035236 KiB
Current children cumulated memory: 30472 KiB

[startup+0.493495 s]
# the end of solver process 13896 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=0.464468 s, system=0.028966 s

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

[startup+0.408904 s]*
/proc/loadavg: 2.14 2.03 2.05 3/187 13897
/proc/meminfo: memFree=6617128/32770624 swapFree=67108404/67108860
[pid=13896] ppid=13893 vsize=2035108 memory=30640 CPUtime=0.4 cores=1,3,5,7
/proc/13896/stat : 13896 (xcsp_picat) R 13893 13896 10833 0 -1 4202496 2343 0 0 0 38 2 0 0 20 0 1 0 219110102 2083950592 7660 33554432000 4194304 5849708 140735737130880 140735737130880 5308813 0 0 4096 8389634 0 0 0 17 1 0 0 0 0 0 7949816 9394900 47259648 140735737132214 140735737132292 140735737132292 140735737135050 0
/proc/13896/statm: 508777 7660 706 405 0 505722 0
Current children cumulated CPU time: 0.4 s
Current children cumulated vsize: 2035108 KiB
Current children cumulated memory: 30640 KiB

Child status: 0
Real time (s): 0.493533
CPU time (s): 0.493434
CPU user time (s): 0.464468
CPU system time (s): 0.028966
CPU usage (%): 99.9799
Max. virtual memory (cumulated for all children) (KiB): 2035236
Max. memory (cumulated for all children) (KiB): 30640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.464468
system time used= 0.028966
maximum resident set size= 30676
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2358
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: 13896
#   total CPU time (s): 0.493434
#   total CPU user time (s): 0.464468
#   total CPU system time (s): 0.028966

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.023748 second user time and 0.033907 second system time

The end

Launcher Data 

Begin job on node148 at 2018-08-11 21:24:30
IDJOB=4303340
IDBENCH=141387
IDSOLVER=2778
FILE ID=node148/4303340-1534015469
RUNJOBID= node148-1533990783-10865
PBS_JOBID= 21036942
Free space on /tmp= 33724 MiB

SOLVER NAME= PicatSAT 2018-08-02
BENCH NAME= XCSP18/SocialGolfers/SocialGolfers-4-4-7-cp_c18.xml
COMMAND LINE= xcsp_picat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4303340-1534015469/watcher-4303340-1534015469 -o /tmp/evaluation-result-4303340-1534015469/solver-4303340-1534015469 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node148-1533990783-10865 --watchdog 2580  xcsp_picat HOME/instance-4303340-1534015469.xml

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

MD5SUM BENCH= 6202e41c7df8f203e59ab292b28f5059
RANDOM SEED=2066360599

node148.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:         6645112 kB
MemAvailable:   31882808 kB
Buffers:          230744 kB
Cached:         24855124 kB
SwapCached:          352 kB
Active:          9606648 kB
Inactive:       15558452 kB
Active(anon):      29128 kB
Inactive(anon):   102132 kB
Active(file):    9577520 kB
Inactive(file): 15456320 kB
Unevictable:        7340 kB
Mlocked:            7340 kB
SwapTotal:      67108860 kB
SwapFree:       67108404 kB
Dirty:              3396 kB
Writeback:             0 kB
AnonPages:        171908 kB
Mapped:            55652 kB
Shmem:             49592 kB
Slab:             660164 kB
SReclaimable:     632316 kB
SUnreclaim:        27848 kB
KernelStack:        3568 kB
PageTables:         5200 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:    2403108 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:    114688 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      116096 kB
DirectMap2M:    33429504 kB

Free space on /tmp at the end= 33720 MiB
End job on node148 at 2018-08-11 21:24:30