Trace number 330210

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, and are wall clock time (not CPU 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
KCNFS SMP? (exit code) 1.3258 1.3282

General information on the benchmark

Nameindustrial/IBM_FV_2004_30/
IBM_FV_2004_rule_batch_30_SAT_dat.k80.cnf
MD5SUMd35e27c66dd20912347d4209a4f12c99
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark890.472
Satisfiable
(Un)Satisfiability was proved
Number of variables165064
Number of clauses686589
Sum of the clauses size1761641
Maximum clause length12
Minimum clause length1
Number of clauses of size 12072
Number of clauses of size 2487000
Number of clauses of size 3128986
Number of clauses of size 424474
Number of clauses of size 513939
Number of clauses of size over 530118

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/330210-1173159571/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
1.29/1.31	c this formula cannot be solved by kcnfs-smp
1.29/1.31

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node60/watcher-330210-1173159571 -o ROOT/results/node60/solver-330210-1173159571 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/330210-1173159571/kcnfs-smp /tmp/evaluation/330210-1173159571/instance-330210-1173159571.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.04 1.02 1.00 3/64 30678
/proc/meminfo: memFree=1467552/2055920 swapFree=4183500/4192956
[pid=30678] ppid=30676 vsize=180784 CPUtime=0
/proc/30678/stat : 30678 (kcnfs-smp) R 30676 30678 28956 0 -1 4194304 66 0 0 0 0 0 0 0 18 0 1 0 335914023 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/30678/statm: 45196 51 43 160 0 45034 0

[startup+0.0688869 s]
/proc/loadavg: 1.04 1.02 1.00 3/64 30678
/proc/meminfo: memFree=1467552/2055920 swapFree=4183500/4192956
[pid=30678] ppid=30676 vsize=180784 CPUtime=0.06
/proc/30678/stat : 30678 (kcnfs-smp) R 30676 30678 28956 0 -1 4194304 66 0 0 0 6 0 0 0 18 0 1 0 335914023 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/30678/statm: 45196 51 43 160 0 45034 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 180784

[startup+0.101892 s]
/proc/loadavg: 1.04 1.02 1.00 3/64 30678
/proc/meminfo: memFree=1467552/2055920 swapFree=4183500/4192956
[pid=30678] ppid=30676 vsize=180784 CPUtime=0.1
/proc/30678/stat : 30678 (kcnfs-smp) R 30676 30678 28956 0 -1 4194304 66 0 0 0 10 0 0 0 18 0 1 0 335914023 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/30678/statm: 45196 51 43 160 0 45034 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 180784

[startup+0.301928 s]
/proc/loadavg: 1.04 1.02 1.00 3/64 30678
/proc/meminfo: memFree=1467552/2055920 swapFree=4183500/4192956
[pid=30678] ppid=30676 vsize=181312 CPUtime=0.29
/proc/30678/stat : 30678 (kcnfs-smp) R 30676 30678 28956 0 -1 4194304 223 0 0 0 29 0 0 0 19 0 1 0 335914023 185663488 208 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/30678/statm: 45328 209 48 160 0 45166 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 181312

[startup+0.701999 s]
/proc/loadavg: 1.04 1.02 1.00 3/64 30678
/proc/meminfo: memFree=1467552/2055920 swapFree=4183500/4192956
[pid=30678] ppid=30676 vsize=203620 CPUtime=0.69
/proc/30678/stat : 30678 (kcnfs-smp) R 30676 30678 28956 0 -1 4194304 5784 0 0 0 67 2 0 0 22 0 1 0 335914023 208506880 5769 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/30678/statm: 50905 5770 48 160 0 50743 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 203620

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

[startup+1.10507 s]
/proc/loadavg: 1.04 1.02 1.00 2/65 30679
/proc/meminfo: memFree=1428120/2055920 swapFree=4183500/4192956
[pid=30678] ppid=30676 vsize=225664 CPUtime=1.09
/proc/30678/stat : 30678 (kcnfs-smp) R 30676 30678 28956 0 -1 4194304 11301 0 0 0 103 6 0 0 25 0 1 0 335914023 231079936 11286 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/30678/statm: 56416 11286 48 160 0 56254 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 225664

[startup+1.30111 s]
/proc/loadavg: 1.04 1.02 1.00 2/65 30679
/proc/meminfo: memFree=1428120/2055920 swapFree=4183500/4192956
[pid=30678] ppid=30676 vsize=236224 CPUtime=1.29
/proc/30678/stat : 30678 (kcnfs-smp) R 30676 30678 28956 0 -1 4194304 13961 0 0 0 122 7 0 0 25 0 1 0 335914023 241893376 13946 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/30678/statm: 59056 13947 48 160 0 58894 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 236224

Child status: 1
Real time (s): 1.3282
CPU time (s): 1.3258
CPU user time (s): 1.23881
CPU system time (s): 0.086986
CPU usage (%): 99.8192
Max. virtual memory (cumulated for all children) (KiB): 236224

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.23881
system time used= 0.086986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 14190
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= 8
involuntary context switches= 3

runsolver used 0.005999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node60 on Tue Mar  6 05:39:32 UTC 2007

IDJOB= 330210
IDBENCH= 20558
IDSOLVER= 112
FILE ID= node60/330210-1173159571

PBS_JOBID= 4015212

Free space on /tmp= 66481 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/IBM_FV_2004_30/IBM_FV_2004_rule_batch_30_SAT_dat.k80.cnf
COMMAND LINE= /tmp/evaluation/330210-1173159571/kcnfs-smp /tmp/evaluation/330210-1173159571/instance-330210-1173159571.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node60/watcher-330210-1173159571 -o ROOT/results/node60/solver-330210-1173159571 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/330210-1173159571/kcnfs-smp /tmp/evaluation/330210-1173159571/instance-330210-1173159571.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  d35e27c66dd20912347d4209a4f12c99

RANDOM SEED= 354108257

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node60.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.283
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.283
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1467960 kB
Buffers:         35024 kB
Cached:         473196 kB
SwapCached:       3412 kB
Active:         163468 kB
Inactive:       358056 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1467960 kB
SwapTotal:     4192956 kB
SwapFree:      4183500 kB
Dirty:           19568 kB
Writeback:           0 kB
Mapped:          19292 kB
Slab:            52408 kB
Committed_AS:   937536 kB
PageTables:       1476 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66481 MiB

End job on node60 on Tue Mar  6 05:39:33 UTC 2007