Trace number 3172182

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
Black Hole SAT 2011-03-08UNSAT 6.607 6.60731

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 

6.60/6.60	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-3172182-1303188380/watcher-3172182-1303188380 -o /tmp/evaluation-result-3172182-1303188380/solver-3172182-1303188380 -C 2400 -W 1300 -M 7680 saturn HOME/instance-3172182-1303188380.cnf 

running on 2 cores: 0,2

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: 4.00 4.00 3.84 1/183 22098
/proc/meminfo: memFree=18909216/32951124 swapFree=67111528/67111528
[pid=22098] ppid=22096 vsize=6496 CPUtime=0 cores=0,2
/proc/22098/stat : 22098 (saturn) R 22096 22098 21822 0 -1 4202496 225 0 0 0 0 0 0 0 18 0 1 0 430436000 6651904 162 33554432000 4194304 4210924 140736544200704 18446744073709551615 228122374853 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/22098/statm: 1624 162 96 5 0 95 0

[startup+0.102223 s]
/proc/loadavg: 4.00 4.00 3.84 1/183 22098
/proc/meminfo: memFree=18909216/32951124 swapFree=67111528/67111528
[pid=22098] ppid=22096 vsize=6496 CPUtime=0.1 cores=0,2
/proc/22098/stat : 22098 (saturn) R 22096 22098 21822 0 -1 4202496 231 0 0 0 10 0 0 0 18 0 1 0 430436000 6651904 168 33554432000 4194304 4210924 140736544200704 18446744073709551615 4198667 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/22098/statm: 1624 168 96 5 0 95 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 6496

[startup+0.200247 s]
/proc/loadavg: 4.00 4.00 3.84 1/183 22098
/proc/meminfo: memFree=18909216/32951124 swapFree=67111528/67111528
[pid=22098] ppid=22096 vsize=6496 CPUtime=0.19 cores=0,2
/proc/22098/stat : 22098 (saturn) R 22096 22098 21822 0 -1 4202496 237 0 0 0 19 0 0 0 18 0 1 0 430436000 6651904 174 33554432000 4194304 4210924 140736544200704 18446744073709551615 4198621 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/22098/statm: 1624 174 96 5 0 95 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 6496

[startup+0.300233 s]
/proc/loadavg: 4.00 4.00 3.84 1/183 22098
/proc/meminfo: memFree=18909216/32951124 swapFree=67111528/67111528
[pid=22098] ppid=22096 vsize=6496 CPUtime=0.29 cores=0,2
/proc/22098/stat : 22098 (saturn) R 22096 22098 21822 0 -1 4202496 242 0 0 0 29 0 0 0 18 0 1 0 430436000 6651904 179 33554432000 4194304 4210924 140736544200704 18446744073709551615 4198616 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/22098/statm: 1624 179 96 5 0 95 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6496

[startup+0.701132 s]
/proc/loadavg: 4.00 4.00 3.84 1/183 22098
/proc/meminfo: memFree=18909216/32951124 swapFree=67111528/67111528
[pid=22098] ppid=22096 vsize=6496 CPUtime=0.7 cores=0,2
/proc/22098/stat : 22098 (saturn) R 22096 22098 21822 0 -1 4202496 243 0 0 0 70 0 0 0 18 0 1 0 430436000 6651904 180 33554432000 4194304 4210924 140736544200704 18446744073709551615 4204753 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/22098/statm: 1624 180 96 5 0 95 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 6496

[startup+1.50098 s]
/proc/loadavg: 4.00 4.00 3.84 5/190 22180
/proc/meminfo: memFree=18918172/32951124 swapFree=67111528/67111528
[pid=22098] ppid=22096 vsize=6496 CPUtime=1.5 cores=0,2
/proc/22098/stat : 22098 (saturn) R 22096 22098 21822 0 -1 4202496 243 0 0 0 150 0 0 0 20 0 1 0 430436000 6651904 180 33554432000 4194304 4210924 140736544200704 18446744073709551615 4207008 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/22098/statm: 1624 180 96 5 0 95 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 6496

[startup+3.1007 s]
/proc/loadavg: 4.00 4.00 3.84 5/190 22180
/proc/meminfo: memFree=18916808/32951124 swapFree=67111528/67111528
[pid=22098] ppid=22096 vsize=6496 CPUtime=3.1 cores=0,2
/proc/22098/stat : 22098 (saturn) R 22096 22098 21822 0 -1 4202496 243 0 0 0 310 0 0 0 25 0 1 0 430436000 6651904 180 33554432000 4194304 4210924 140736544200704 18446744073709551615 4204778 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/22098/statm: 1624 180 96 5 0 95 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 6496

[startup+6.30112 s]
/proc/loadavg: 4.00 4.00 3.84 5/190 22180
/proc/meminfo: memFree=18916468/32951124 swapFree=67111528/67111528
[pid=22098] ppid=22096 vsize=6496 CPUtime=6.3 cores=0,2
/proc/22098/stat : 22098 (saturn) R 22096 22098 21822 0 -1 4202496 243 0 0 0 630 0 0 0 25 0 1 0 430436000 6651904 180 33554432000 4194304 4210924 140736544200704 18446744073709551615 4198625 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/22098/statm: 1624 180 96 5 0 95 0
Current children cumulated CPU time (s) 6.3
Current children cumulated vsize (KiB) 6496

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

[startup+6.4011 s]
/proc/loadavg: 4.00 4.00 3.84 5/190 22180
/proc/meminfo: memFree=18916468/32951124 swapFree=67111528/67111528
[pid=22098] ppid=22096 vsize=6496 CPUtime=6.4 cores=0,2
/proc/22098/stat : 22098 (saturn) R 22096 22098 21822 0 -1 4202496 243 0 0 0 640 0 0 0 25 0 1 0 430436000 6651904 180 33554432000 4194304 4210924 140736544200704 18446744073709551615 4205034 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/22098/statm: 1624 180 96 5 0 95 0
Current children cumulated CPU time (s) 6.4
Current children cumulated vsize (KiB) 6496

[startup+6.60107 s]
/proc/loadavg: 4.00 4.00 3.84 5/190 22180
/proc/meminfo: memFree=18916344/32951124 swapFree=67111528/67111528
[pid=22098] ppid=22096 vsize=6496 CPUtime=6.6 cores=0,2
/proc/22098/stat : 22098 (saturn) R 22096 22098 21822 0 -1 4202496 243 0 0 0 660 0 0 0 25 0 1 0 430436000 6651904 180 33554432000 4194304 4210924 140736544200704 18446744073709551615 4207008 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/22098/statm: 1624 180 96 5 0 95 0
Current children cumulated CPU time (s) 6.6
Current children cumulated vsize (KiB) 6496

Child status: 0
Real time (s): 6.60731
CPU time (s): 6.607
CPU user time (s): 6.607
CPU system time (s): 0
CPU usage (%): 99.9953
Max. virtual memory (cumulated for all children) (KiB): 6496

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.60699
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= 251
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= 14

runsolver used 0.009998 second user time and 0.026995 second system time

The end

Launcher Data 

Begin job on node138 at 2011-04-19 06:46:20
IDJOB=3172182
IDBENCH=82800
IDSOLVER=1583
FILE ID=node138/3172182-1303188380
RUNJOBID= node138-1303185776-21840
PBS_JOBID= 13026609
Free space on /tmp= 73596 MiB

SOLVER NAME= Black Hole SAT 2011-03-08
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v50-c1065-S827703138-064.UNKNOWN.cnf
COMMAND LINE= saturn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3172182-1303188380/watcher-3172182-1303188380 -o /tmp/evaluation-result-3172182-1303188380/solver-3172182-1303188380 -C 2400 -W 1300 -M 7680  saturn HOME/instance-3172182-1303188380.cnf

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

MD5SUM BENCH= 8a9e79c1cb155bf3f6b196f918087125
RANDOM SEED=2077249835

node138.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	: 5332.82
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		: 2666.854
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	: 5332.80
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      18909472 kB
Buffers:        711008 kB
Cached:       12910284 kB
SwapCached:          0 kB
Active:        6668792 kB
Inactive:      7022144 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      18909472 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:              88 kB
Writeback:           0 kB
AnonPages:       69364 kB
Mapped:          15112 kB
Slab:           285624 kB
PageTables:       5040 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   287292 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= 73604 MiB
End job on node138 at 2011-04-19 06:46:27