Trace number 3292978

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 0.26096 0.261899

General information on the benchmark

NameSAT02/industrial/goldberg/rand_net/
rand_net60-30-1.shuffled.cnf
MD5SUM4297b314a32658522bc6751e20d6be5c
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.014997
Satisfiable
(Un)Satisfiability was proved
Number of variables3600
Number of clauses10681
Sum of the clauses size25140
Maximum clause length60
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 26960
Number of clauses of size 33720
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 51

Solver Data 

0.20/0.26	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-3292978-1303791108/watcher-3292978-1303791108 -o /tmp/evaluation-result-3292978-1303791108/solver-3292978-1303791108 -C 2400 -W 1300 -M 7680 picosat HOME/instance-3292978-1303791108.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: 3.88 3.99 3.91 5/189 4411
/proc/meminfo: memFree=12934244/32951124 swapFree=67111528/67111528
[pid=4411] ppid=4409 vsize=2288 CPUtime=0 cores=4,6
/proc/4411/stat : 4411 (picosat) R 4409 4411 4113 0 -1 4202496 308 0 0 0 0 0 0 0 25 0 1 0 490711763 2342912 254 33554432000 134512640 134603332 4288197456 18446744073709551615 134543811 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/4411/statm: 572 254 97 23 0 198 0

[startup+0.0641859 s]
/proc/loadavg: 3.88 3.99 3.91 5/189 4411
/proc/meminfo: memFree=12934244/32951124 swapFree=67111528/67111528
[pid=4411] ppid=4409 vsize=2420 CPUtime=0.06 cores=4,6
/proc/4411/stat : 4411 (picosat) R 4409 4411 4113 0 -1 4202496 336 0 0 0 6 0 0 0 25 0 1 0 490711763 2478080 282 33554432000 134512640 134603332 4288197456 18446744073709551615 10786300 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/4411/statm: 605 282 97 23 0 231 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2420

[startup+0.101194 s]
/proc/loadavg: 3.88 3.99 3.91 5/189 4411
/proc/meminfo: memFree=12934244/32951124 swapFree=67111528/67111528
[pid=4411] ppid=4409 vsize=2420 CPUtime=0.1 cores=4,6
/proc/4411/stat : 4411 (picosat) R 4409 4411 4113 0 -1 4202496 349 0 0 0 10 0 0 0 25 0 1 0 490711763 2478080 295 33554432000 134512640 134603332 4288197456 18446744073709551615 134566275 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/4411/statm: 605 295 97 23 0 231 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2420

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

[startup+0.201171 s]
/proc/loadavg: 3.88 3.99 3.91 5/189 4411
/proc/meminfo: memFree=12934244/32951124 swapFree=67111528/67111528
[pid=4411] ppid=4409 vsize=2552 CPUtime=0.2 cores=4,6
/proc/4411/stat : 4411 (picosat) R 4409 4411 4113 0 -1 4202496 387 0 0 0 20 0 0 0 25 0 1 0 490711763 2613248 333 33554432000 134512640 134603332 4288197456 18446744073709551615 134525256 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/4411/statm: 638 333 97 23 0 264 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 2552

Child status: 20
Real time (s): 0.261899
CPU time (s): 0.26096
CPU user time (s): 0.26096
CPU system time (s): 0
CPU usage (%): 99.6414
Max. virtual memory (cumulated for all children) (KiB): 2552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.26096
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= 410
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

runsolver used 0.004999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node108 at 2011-04-26 06:11:48
IDJOB=3292978
IDBENCH=88003
IDSOLVER=1604
FILE ID=node108/3292978-1303791108
RUNJOBID= node108-1303789776-4132
PBS_JOBID= 13157262
Free space on /tmp= 71968 MiB

SOLVER NAME= PicoSAT 941
BENCH NAME= SAT02/industrial/goldberg/rand_net/rand_net60-30-1.shuffled.cnf
COMMAND LINE= picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3292978-1303791108/watcher-3292978-1303791108 -o /tmp/evaluation-result-3292978-1303791108/solver-3292978-1303791108 -C 2400 -W 1300 -M 7680  picosat HOME/instance-3292978-1303791108.cnf

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

MD5SUM BENCH= 4297b314a32658522bc6751e20d6be5c
RANDOM SEED=1758200625

node108.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	: 5226.15
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	: 5332.82
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	: 5332.77
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	: 5332.82
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		: 2666.820
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      12934276 kB
Buffers:       2280276 kB
Cached:       15805088 kB
SwapCached:          0 kB
Active:       11129940 kB
Inactive:      8304628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      12934276 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           50152 kB
Writeback:          12 kB
AnonPages:     1348640 kB
Mapped:          15692 kB
Slab:           516688 kB
PageTables:       7656 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  1565988 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= 71968 MiB
End job on node108 at 2011-04-26 06:11:49