Trace number 4395162

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 NameAnswerobjective functionCPU timeWall clock time
PicatSAT 2019-09-12OPT6 0.407587 0.407793

General information on the benchmark

NamePseudoBoolean/PseudoBoolean-opt-bgr/
Pb-bgr-04.xml
MD5SUMa565a7a5aa699043db8dfe2959276911
Bench CategoryCOP (optimization problem)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark6
Best CPU time to get the best result obtained on this benchmark0.013229
Satisfiable
(Un)Satisfiability was proved
Number of variables38
Number of constraints44
Number of domains1
Minimum domain size2
Maximum domain size2
Distribution of domain sizes[{"size":2,"count":38}]
Minimum variable degree2
Maximum variable degree30
Distribution of variable degrees[{"degree":2,"count":21},{"degree":29,"count":5},{"degree":30,"count":12}]
Minimum constraint arity1
Maximum constraint arity18
Distribution of constraint arities[{"arity":1,"count":1},{"arity":8,"count":2},{"arity":9,"count":7},{"arity":10,"count":6},{"arity":13,"count":6},{"arity":14,"count":18},{"arity":18,"count":4}]
Number of extensional constraints0
Number of intensional constraints0
Distribution of constraint types[{"type":"sum","count":44}]
Optimization problemYES
Type of objectivemin SUM

Solver Data 

0.30/0.40	c xcsp_picat version 2.7b12 (9/12/2019)
0.30/0.40	o 6
0.30/0.40	s OPTIMUM FOUND
0.30/0.40	v <instantiation>
0.30/0.40	v     <list> x[]  </list> 
0.30/0.40	v     <values> 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 1 1 1 1 1 1 1 0 1 0 0 1 1 0 0 0 0 1   </values> 
0.30/0.40	v </instantiation>

Verifier Data 

OK	6

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 (15295 MiB free)
  memory of node 1: 16384 MiB (9999 MiB free)
  node distances:
     10  21
     21  10

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-4395162-1568339674/watcher-4395162-1568339674 -o /tmp/evaluation-result-4395162-1568339674/solver-4395162-1568339674 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node107-1568318150-27186 --watchdog 2580 xcsp_picat HOME/instance-4395162-1568339674.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
solver pid=31425, runsolver pid=31422
Current StackSize limit: 8192 KiB


[startup+0.100109 s]*
/proc/loadavg: 2.01 2.02 2.05 3/199 31426
/proc/meminfo: memFree=25799452/32770624 swapFree=66921176/67108860
[pid=31425] ppid=31422 vsize=2036352 memory=17868 CPUtime=0.1 cores=0,2,4,6
/proc/31425/stat : 31425 (xcsp_picat) R 31422 31425 27155 0 -1 4202496 1626 0 0 0 10 0 0 0 20 0 1 0 410223429 2085224448 4467 33554432000 4194304 5870510 140729268146272 140729268143416 5326924 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7970040 9572284 34791424 140729268151327 140729268151405 140729268151405 140729268154314 0
/proc/31425/statm: 509088 4467 972 410 0 504561 0
Current children cumulated CPU time: 0.1 s
Current children cumulated vsize: 2036352 KiB
Current children cumulated memory: 17868 KiB

[startup+0.209748 s]*
/proc/loadavg: 2.01 2.02 2.05 3/199 31426
/proc/meminfo: memFree=25703072/32770624 swapFree=66921176/67108860
[pid=31425] ppid=31422 vsize=2036496 memory=17868 CPUtime=0.21 cores=0,2,4,6
/proc/31425/stat : 31425 (xcsp_picat) R 31422 31425 27155 0 -1 4202496 1628 0 0 0 21 0 0 0 20 0 1 0 410223429 2085371904 4467 33554432000 4194304 5870510 140729268146272 140729268143416 139757471960967 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7970040 9572284 34791424 140729268151327 140729268151405 140729268151405 140729268154314 0
/proc/31425/statm: 509124 4467 972 410 0 504597 0
Current children cumulated CPU time: 0.21 s
Current children cumulated vsize: 2036496 KiB
Current children cumulated memory: 17868 KiB

[startup+0.308898 s]*
/proc/loadavg: 2.01 2.02 2.05 3/199 31426
/proc/meminfo: memFree=25616932/32770624 swapFree=66921176/67108860
[pid=31425] ppid=31422 vsize=2036496 memory=17868 CPUtime=0.3 cores=0,2,4,6
/proc/31425/stat : 31425 (xcsp_picat) R 31422 31425 27155 0 -1 4202496 1629 0 0 0 30 0 0 0 20 0 1 0 410223429 2085371904 4467 33554432000 4194304 5870510 140729268146272 140729268143416 139757471960967 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7970040 9572284 34791424 140729268151327 140729268151405 140729268151405 140729268154314 0
/proc/31425/statm: 509124 4467 972 410 0 504597 0
Current children cumulated CPU time: 0.3 s
Current children cumulated vsize: 2036496 KiB
Current children cumulated memory: 17868 KiB

[startup+0.407759 s]
# the end of solver process 31425 was just reported to runsolver
# cumulated CPU time of all completed processes:  user=0.397603 s, system=0.009984 s

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

[startup+0.308898 s]*
/proc/loadavg: 2.01 2.02 2.05 3/199 31426
/proc/meminfo: memFree=25616932/32770624 swapFree=66921176/67108860
[pid=31425] ppid=31422 vsize=2036496 memory=17868 CPUtime=0.3 cores=0,2,4,6
/proc/31425/stat : 31425 (xcsp_picat) R 31422 31425 27155 0 -1 4202496 1629 0 0 0 30 0 0 0 20 0 1 0 410223429 2085371904 4467 33554432000 4194304 5870510 140729268146272 140729268143416 139757471960967 0 0 4096 8389634 0 0 0 17 0 0 0 0 0 0 7970040 9572284 34791424 140729268151327 140729268151405 140729268151405 140729268154314 0
/proc/31425/statm: 509124 4467 972 410 0 504597 0
Current children cumulated CPU time: 0.3 s
Current children cumulated vsize: 2036496 KiB
Current children cumulated memory: 17868 KiB

Child status: 0
Real time (s): 0.407793
CPU time (s): 0.407587
CPU user time (s): 0.397603
CPU system time (s): 0.009984
CPU usage (%): 99.9495
Max. virtual memory (cumulated for all children) (KiB): 2036496
Max. memory (cumulated for all children) (KiB): 17868

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.397603
system time used= 0.009984
maximum resident set size= 18072
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1638
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= 4
involuntary context switches= 1


# summary of solver processes directly reported to runsolver:
#   pid: 31425
#   total CPU time (s): 0.407587
#   total CPU user time (s): 0.397603
#   total CPU system time (s): 0.009984

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.021019 second user time and 0.027654 second system time

The end

Launcher Data 

Begin job on node107 at 2019-09-13 02:52:38
IDJOB=4395162
IDBENCH=134859
IDSOLVER=2844
FILE ID=node107/4395162-1568339674
RUNJOBID= node107-1568318150-27186
PBS_JOBID= 21701137
Free space on /tmp= 55660 MiB

SOLVER NAME= PicatSAT 2019-09-12
BENCH NAME= XCSP17/PseudoBoolean/PseudoBoolean-opt-bgr/Pb-bgr-04.xml
COMMAND LINE= xcsp_picat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4395162-1568339674/watcher-4395162-1568339674 -o /tmp/evaluation-result-4395162-1568339674/solver-4395162-1568339674 -C 2520 -W 2520 -M 15500 --bin-var /tmp/runsolver-exch-node107-1568318150-27186 --watchdog 2580  xcsp_picat HOME/instance-4395162-1568339674.xml

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

MD5SUM BENCH= a565a7a5aa699043db8dfe2959276911
RANDOM SEED=1783481912

node107.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	: 5334.11
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	: 5334.11
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	: 5334.11
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	: 5334.11
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:        25917616 kB
MemAvailable:   26316700 kB
Buffers:          127160 kB
Cached:           541316 kB
SwapCached:        80180 kB
Active:          5905488 kB
Inactive:         349292 kB
Active(anon):    5515672 kB
Inactive(anon):   100396 kB
Active(file):     389816 kB
Inactive(file):   248896 kB
Unevictable:      110040 kB
Mlocked:          110040 kB
SwapTotal:      67108860 kB
SwapFree:       66921176 kB
Dirty:              3108 kB
Writeback:             0 kB
AnonPages:       5572720 kB
Mapped:            34380 kB
Shmem:             20916 kB
Slab:             180916 kB
SReclaimable:     152416 kB
SUnreclaim:        28500 kB
KernelStack:        3552 kB
PageTables:        16192 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83494172 kB
Committed_AS:    8073244 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      350232 kB
VmallocChunk:   34341910524 kB
HardwareCorrupted:     0 kB
AnonHugePages:   5519360 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      101760 kB
DirectMap2M:    33443840 kB

Free space on /tmp at the end= 55660 MiB
End job on node107 at 2019-09-13 02:52:38