Trace number 3266213

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
PicoSAT 941UNSAT 1.35279 1.35849

General information on the benchmark

NameSAT02/handmade/pehoushek/plainoldcnf/
5cnf_3900_3900_060.shuffled.cnf
MD5SUM8fb426184fc34ee36ee1bb5e07551b2d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.369943
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of clauses936
Sum of the clauses size4520
Maximum clause length5
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 37
Number of clauses of size 4146
Number of clauses of size 5783
Number of clauses of size over 50

Solver Data 

1.29/1.35	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-3266213-1303579624/watcher-3266213-1303579624 -o /tmp/evaluation-result-3266213-1303579624/solver-3266213-1303579624 -C 2400 -W 1300 -M 7680 picosat HOME/instance-3266213-1303579624.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: 3.47 3.88 3.67 4/184 17956
/proc/meminfo: memFree=15542292/32950928 swapFree=67111528/67111528
[pid=17956] ppid=17954 vsize=11800 CPUtime=0 cores=4,6
/proc/17956/stat : 17956 (runsolver) R 17954 17956 17798 0 -1 4202560 42 0 0 0 0 0 0 0 25 0 1 0 469561149 12083200 52 33554432000 4194304 5434984 140736167955632 18446744073709551615 4881607 0 2147483391 4096 24578 0 0 0 17 6 0 0 0
/proc/17956/statm: 2950 52 31 303 0 2644 0

[startup+0.0844269 s]
/proc/loadavg: 3.47 3.88 3.67 4/184 17956
/proc/meminfo: memFree=15542292/32950928 swapFree=67111528/67111528
[pid=17956] ppid=17954 vsize=1876 CPUtime=0.07 cores=4,6
/proc/17956/stat : 17956 (picosat) R 17954 17956 17798 0 -1 4202496 204 0 0 0 7 0 0 0 25 0 1 0 469561149 1921024 150 33554432000 134512640 134603332 4287623712 18446744073709551615 134550837 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/17956/statm: 469 150 97 23 0 95 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1876

[startup+0.100417 s]
/proc/loadavg: 3.47 3.88 3.67 4/184 17956
/proc/meminfo: memFree=15542292/32950928 swapFree=67111528/67111528
[pid=17956] ppid=17954 vsize=1876 CPUtime=0.09 cores=4,6
/proc/17956/stat : 17956 (picosat) R 17954 17956 17798 0 -1 4202496 204 0 0 0 9 0 0 0 25 0 1 0 469561149 1921024 150 33554432000 134512640 134603332 4287623712 18446744073709551615 134550868 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/17956/statm: 469 150 97 23 0 95 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1876

[startup+0.300379 s]
/proc/loadavg: 3.47 3.88 3.67 4/184 17956
/proc/meminfo: memFree=15542292/32950928 swapFree=67111528/67111528
[pid=17956] ppid=17954 vsize=1876 CPUtime=0.29 cores=4,6
/proc/17956/stat : 17956 (picosat) R 17954 17956 17798 0 -1 4202496 211 0 0 0 29 0 0 0 25 0 1 0 469561149 1921024 157 33554432000 134512640 134603332 4287623712 18446744073709551615 134551099 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/17956/statm: 469 157 97 23 0 95 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1876

[startup+0.700269 s]
/proc/loadavg: 3.47 3.88 3.67 4/184 17956
/proc/meminfo: memFree=15542292/32950928 swapFree=67111528/67111528
[pid=17956] ppid=17954 vsize=1876 CPUtime=0.69 cores=4,6
/proc/17956/stat : 17956 (picosat) R 17954 17956 17798 0 -1 4202496 219 0 0 0 69 0 0 0 25 0 1 0 469561149 1921024 165 33554432000 134512640 134603332 4287623712 18446744073709551615 134551065 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/17956/statm: 469 165 97 23 0 95 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1876

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

[startup+1.10612 s]
/proc/loadavg: 3.52 3.88 3.67 5/190 17967
/proc/meminfo: memFree=15538920/32950928 swapFree=67111528/67111528
[pid=17956] ppid=17954 vsize=1876 CPUtime=1.1 cores=4,6
/proc/17956/stat : 17956 (picosat) R 17954 17956 17798 0 -1 4202496 228 0 0 0 110 0 0 0 25 0 1 0 469561149 1921024 174 33554432000 134512640 134603332 4287623712 18446744073709551615 134551059 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/17956/statm: 469 174 97 23 0 95 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 1876

[startup+1.30009 s]
/proc/loadavg: 3.52 3.88 3.67 5/190 17967
/proc/meminfo: memFree=15538920/32950928 swapFree=67111528/67111528
[pid=17956] ppid=17954 vsize=2008 CPUtime=1.29 cores=4,6
/proc/17956/stat : 17956 (picosat) R 17954 17956 17798 0 -1 4202496 232 0 0 0 129 0 0 0 25 0 1 0 469561149 2056192 178 33554432000 134512640 134603332 4287623712 18446744073709551615 134542780 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/17956/statm: 502 178 97 23 0 128 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 2008

Child status: 20
Real time (s): 1.35849
CPU time (s): 1.35279
CPU user time (s): 1.35279
CPU system time (s): 0
CPU usage (%): 99.5804
Max. virtual memory (cumulated for all children) (KiB): 2008

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.35279
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= 236
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= 4

runsolver used 0.002999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node122 at 2011-04-23 19:27:04
IDJOB=3266213
IDBENCH=87444
IDSOLVER=1604
FILE ID=node122/3266213-1303579624
RUNJOBID= node122-1303579623-17817
PBS_JOBID= 13150343
Free space on /tmp= 70816 MiB

SOLVER NAME= PicoSAT 941
BENCH NAME= SAT02/handmade/pehoushek/plainoldcnf/5cnf_3900_3900_060.shuffled.cnf
COMMAND LINE= picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3266213-1303579624/watcher-3266213-1303579624 -o /tmp/evaluation-result-3266213-1303579624/solver-3266213-1303579624 -C 2400 -W 1300 -M 7680  picosat HOME/instance-3266213-1303579624.cnf

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

MD5SUM BENCH= 8fb426184fc34ee36ee1bb5e07551b2d
RANDOM SEED=1630049294

node122.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		: 2666.820
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	: 5333.64
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		: 2666.820
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		: 2666.820
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	: 5332.75
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		: 2666.820
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	: 5332.83
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		: 2666.820
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	: 5332.75
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		: 2666.820
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		: 2666.820
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	: 5332.75
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		: 2666.820
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	: 5332.97
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      15542324 kB
Buffers:       1776256 kB
Cached:       15005936 kB
SwapCached:          0 kB
Active:        5453976 kB
Inactive:     11399128 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      15542324 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             960 kB
Writeback:           4 kB
AnonPages:       69732 kB
Mapped:          15508 kB
Slab:           488204 kB
PageTables:       4900 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   237536 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= 70816 MiB
End job on node122 at 2011-04-23 19:27:05