Trace number 3170382

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
RestartSAT B95UNSAT 1.9587 1.95951

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v50-c1065-S827703138-064.UNKNOWN.cnf
MD5SUM8a9e79c1cb155bf3f6b196f918087125
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.156975
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses1065
Sum of the clauses size5325
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 51065
Number of clauses of size over 50

Solver Data 

1.90/1.95	c WARNING: for repeatability, setting FPU to use double precision
1.90/1.95	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3170382-1302822929/watcher-3170382-1302822929 -o /tmp/evaluation-result-3170382-1302822929/solver-3170382-1302822929 -C 2400 -W 1300 -M 7680 HOME/RestartSAT -rfirst=1 -var-decay=0.95 HOME/instance-3170382-1302822929.cnf 

running on 2 cores: 4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 3.68 3.93 3.94 4/187 10792
/proc/meminfo: memFree=16268592/32950928 swapFree=67102716/67111528
[pid=10792] ppid=10790 vsize=14892 CPUtime=0 cores=4,6
/proc/10792/stat : 10792 (RestartSAT) R 10790 10792 10148 0 -1 4202496 394 0 0 0 0 0 0 0 22 0 1 0 393889993 15249408 325 33554432000 4194304 4291949 140736912386800 18446744073709551615 4267195 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/10792/statm: 3723 325 248 24 0 357 0

[startup+0.0152131 s]
/proc/loadavg: 3.68 3.93 3.94 4/187 10792
/proc/meminfo: memFree=16268592/32950928 swapFree=67102716/67111528
[pid=10792] ppid=10790 vsize=14892 CPUtime=0.01 cores=4,6
/proc/10792/stat : 10792 (RestartSAT) R 10790 10792 10148 0 -1 4202496 414 0 0 0 1 0 0 0 22 0 1 0 393889993 15249408 344 33554432000 4194304 4291949 140736912386800 18446744073709551615 4255624 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/10792/statm: 3723 344 249 24 0 357 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 14892

[startup+0.1012 s]
/proc/loadavg: 3.68 3.93 3.94 4/187 10792
/proc/meminfo: memFree=16268592/32950928 swapFree=67102716/67111528
[pid=10792] ppid=10790 vsize=15060 CPUtime=0.1 cores=4,6
/proc/10792/stat : 10792 (RestartSAT) R 10790 10792 10148 0 -1 4202496 447 0 0 0 10 0 0 0 22 0 1 0 393889993 15421440 374 33554432000 4194304 4291949 140736912386800 18446744073709551615 4256120 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/10792/statm: 3765 374 249 24 0 399 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 15060

[startup+0.301158 s]
/proc/loadavg: 3.68 3.93 3.94 4/187 10792
/proc/meminfo: memFree=16268592/32950928 swapFree=67102716/67111528
[pid=10792] ppid=10790 vsize=15196 CPUtime=0.3 cores=4,6
/proc/10792/stat : 10792 (RestartSAT) R 10790 10792 10148 0 -1 4202496 476 0 0 0 30 0 0 0 23 0 1 0 393889993 15560704 400 33554432000 4194304 4291949 140736912386800 18446744073709551615 4262856 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/10792/statm: 3799 400 249 24 0 433 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 15196

[startup+0.701087 s]
/proc/loadavg: 3.68 3.93 3.94 4/187 10792
/proc/meminfo: memFree=16268592/32950928 swapFree=67102716/67111528
[pid=10792] ppid=10790 vsize=15348 CPUtime=0.7 cores=4,6
/proc/10792/stat : 10792 (RestartSAT) R 10790 10792 10148 0 -1 4202496 520 0 0 0 70 0 0 0 25 0 1 0 393889993 15716352 442 33554432000 4194304 4291949 140736912386800 18446744073709551615 4256096 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/10792/statm: 3837 442 249 24 0 471 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 15348

[startup+1.50093 s]
/proc/loadavg: 3.68 3.93 3.94 5/190 10820
/proc/meminfo: memFree=16269504/32950928 swapFree=67102716/67111528
[pid=10792] ppid=10790 vsize=15512 CPUtime=1.5 cores=4,6
/proc/10792/stat : 10792 (RestartSAT) R 10790 10792 10148 0 -1 4202496 562 0 0 0 150 0 0 0 25 0 1 0 393889993 15884288 480 33554432000 4194304 4291949 140736912386800 18446744073709551615 4263402 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/10792/statm: 3878 480 249 24 0 512 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 15512

Solver just ended. Dumping a history of the last processes samples

[startup+1.90085 s]
/proc/loadavg: 3.68 3.93 3.94 5/190 10820
/proc/meminfo: memFree=16269504/32950928 swapFree=67102716/67111528
[pid=10792] ppid=10790 vsize=15512 CPUtime=1.9 cores=4,6
/proc/10792/stat : 10792 (RestartSAT) R 10790 10792 10148 0 -1 4202496 563 0 0 0 190 0 0 0 25 0 1 0 393889993 15884288 481 33554432000 4194304 4291949 140736912386800 18446744073709551615 4262976 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/10792/statm: 3878 481 249 24 0 512 0
Current children cumulated CPU time (s) 1.9
Current children cumulated vsize (KiB) 15512

Child status: 20
Real time (s): 1.95951
CPU time (s): 1.9587
CPU user time (s): 1.9587
CPU system time (s): 0
CPU usage (%): 99.9589
Max. virtual memory (cumulated for all children) (KiB): 15512

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.9587
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 573
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= 3

runsolver used 0.001999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node148 at 2011-04-15 01:15:29
IDJOB=3170382
IDBENCH=82800
IDSOLVER=1580
FILE ID=node148/3170382-1302822929
RUNJOBID= node148-1302817720-10167
PBS_JOBID= 13006656
Free space on /tmp= 70880 MiB

SOLVER NAME= RestartSAT B95
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v50-c1065-S827703138-064.UNKNOWN.cnf
COMMAND LINE= HOME/RestartSAT -rfirst=1 -var-decay=0.95 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3170382-1302822929/watcher-3170382-1302822929 -o /tmp/evaluation-result-3170382-1302822929/solver-3170382-1302822929 -C 2400 -W 1300 -M 7680  HOME/RestartSAT -rfirst=1 -var-decay=0.95 HOME/instance-3170382-1302822929.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 8a9e79c1cb155bf3f6b196f918087125
RANDOM SEED=1768623156

node148.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.70
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.854
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
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 syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      16268748 kB
Buffers:        622488 kB
Cached:       15629480 kB
SwapCached:       4908 kB
Active:        7965224 kB
Inactive:      8351956 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      16268748 kB
SwapTotal:    67111528 kB
SwapFree:     67102716 kB
Dirty:            1184 kB
Writeback:           0 kB
AnonPages:       61192 kB
Mapped:          15056 kB
Slab:           302628 kB
PageTables:       4296 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   266016 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 70884 MiB
End job on node148 at 2011-04-15 01:15:31