Trace number 336180

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) 4.43632 4.43806

General information on the benchmark

Namecrafted/Hard/contest05/others/
sgp_9-8-8.sat05-2674.reshuffled-07.cnf
MD5SUMf935103d71f7bb9e8d8051793d20ec02
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables186624
Number of clauses3086912
Sum of the clauses size6851936
Maximum clause length64
Minimum clause length1
Number of clauses of size 1128
Number of clauses of size 22506464
Number of clauses of size 3574560
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 55760

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/336180-1173641962/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
4.30/4.40	c this formula cannot be solved by kcnfs-smp
4.30/4.40

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/node4/watcher-336180-1173641962 -o ROOT/results/node4/solver-336180-1173641962 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/336180-1173641962/kcnfs-smp /tmp/evaluation/336180-1173641962/instance-336180-1173641962.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: 0.93 0.98 0.99 3/77 3254
/proc/meminfo: memFree=1416872/2055920 swapFree=4153224/4192956
[pid=3254] ppid=3252 vsize=180916 CPUtime=0
/proc/3254/stat : 3254 (kcnfs-smp) R 3252 3254 3126 0 -1 4194304 123 0 0 0 0 0 0 0 18 0 1 0 384151966 185257984 108 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3254/statm: 45229 108 48 160 0 45067 0

[startup+0.0414561 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 3254
/proc/meminfo: memFree=1416872/2055920 swapFree=4153224/4192956
[pid=3254] ppid=3252 vsize=182896 CPUtime=0.03
/proc/3254/stat : 3254 (kcnfs-smp) R 3252 3254 3126 0 -1 4194304 610 0 0 0 3 0 0 0 18 0 1 0 384151966 187285504 595 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3254/statm: 45724 595 48 160 0 45562 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 182896

[startup+0.101461 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 3254
/proc/meminfo: memFree=1416872/2055920 swapFree=4153224/4192956
[pid=3254] ppid=3252 vsize=186064 CPUtime=0.09
/proc/3254/stat : 3254 (kcnfs-smp) R 3252 3254 3126 0 -1 4194304 1400 0 0 0 9 0 0 0 18 0 1 0 384151966 190529536 1385 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3254/statm: 46516 1386 48 160 0 46354 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186064

[startup+0.30148 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 3254
/proc/meminfo: memFree=1416872/2055920 swapFree=4153224/4192956
[pid=3254] ppid=3252 vsize=196624 CPUtime=0.29
/proc/3254/stat : 3254 (kcnfs-smp) R 3252 3254 3126 0 -1 4194304 4043 0 0 0 28 1 0 0 19 0 1 0 384151966 201342976 4028 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3254/statm: 49156 4029 48 160 0 48994 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196624

[startup+0.701518 s]
/proc/loadavg: 0.93 0.98 0.99 3/77 3254
/proc/meminfo: memFree=1416872/2055920 swapFree=4153224/4192956
[pid=3254] ppid=3252 vsize=217744 CPUtime=0.69
/proc/3254/stat : 3254 (kcnfs-smp) R 3252 3254 3126 0 -1 4194304 9328 0 0 0 65 4 0 0 22 0 1 0 384151966 222969856 9313 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3254/statm: 54436 9314 48 160 0 54274 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 217744

[startup+1.50159 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 3255
/proc/meminfo: memFree=1363872/2055920 swapFree=4153224/4192956
[pid=3254] ppid=3252 vsize=259984 CPUtime=1.49
/proc/3254/stat : 3254 (kcnfs-smp) R 3252 3254 3126 0 -1 4194304 19896 0 0 0 138 11 0 0 25 0 1 0 384151966 266223616 19881 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3254/statm: 64996 19881 48 160 0 64834 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 259984

[startup+3.10175 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 3255
/proc/meminfo: memFree=1305184/2055920 swapFree=4153224/4192956
[pid=3254] ppid=3252 vsize=344464 CPUtime=3.09
/proc/3254/stat : 3254 (kcnfs-smp) R 3252 3254 3126 0 -1 4194304 41014 0 0 0 288 21 0 0 25 0 1 0 384151966 352731136 40999 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3254/statm: 86116 40999 48 160 0 85954 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 344464

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

[startup+3.90183 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 3255
/proc/meminfo: memFree=1247456/2055920 swapFree=4153224/4192956
[pid=3254] ppid=3252 vsize=386836 CPUtime=3.89
/proc/3254/stat : 3254 (kcnfs-smp) R 3252 3254 3126 0 -1 4194304 51613 0 0 0 363 26 0 0 25 0 1 0 384151966 396120064 51598 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3254/statm: 96709 51598 48 160 0 96547 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 386836

[startup+4.30186 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 3255
/proc/meminfo: memFree=1189024/2055920 swapFree=4153224/4192956
[pid=3254] ppid=3252 vsize=408352 CPUtime=4.3
/proc/3254/stat : 3254 (kcnfs-smp) R 3252 3254 3126 0 -1 4194304 56966 0 0 0 402 28 0 0 25 0 1 0 384151966 418152448 56951 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/3254/statm: 102088 56952 48 160 0 101926 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 408352

[startup+4.40587 s]
/proc/loadavg: 0.94 0.98 0.99 2/78 3255
/proc/meminfo: memFree=1189024/2055920 swapFree=4153224/4192956
[pid=3254] ppid=3252 vsize=0 CPUtime=4.39
/proc/3254/stat : 3254 (kcnfs-smp) R 3252 3254 3126 0 -1 4194308 58215 0 0 0 410 29 0 0 25 0 1 0 384151966 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/3254/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 4.39
Current children cumulated vsize (KiB) 0

Child status: 1
Real time (s): 4.43806
CPU time (s): 4.43632
CPU user time (s): 4.10738
CPU system time (s): 0.328949
CPU usage (%): 99.961
Max. virtual memory (cumulated for all children) (KiB): 408352

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.10738
system time used= 0.328949
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 58215
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 0.004999 second user time and 0.019996 second system time

The end

Launcher Data (download as text)

Begin job on node4 on Sun Mar 11 19:39:31 UTC 2007

IDJOB= 336180
IDBENCH= 24669
IDSOLVER= 112
FILE ID= node4/336180-1173641962

PBS_JOBID= 4101366

Free space on /tmp= 66429 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/crafted/Hard/contest05/others/sgp_9-8-8.sat05-2674.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/336180-1173641962/kcnfs-smp /tmp/evaluation/336180-1173641962/instance-336180-1173641962.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-336180-1173641962 -o ROOT/results/node4/solver-336180-1173641962 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/336180-1173641962/kcnfs-smp /tmp/evaluation/336180-1173641962/instance-336180-1173641962.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  f935103d71f7bb9e8d8051793d20ec02

RANDOM SEED= 833761516

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.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		: 3000.231
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		: 3000.231
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:       1417344 kB
Buffers:         50288 kB
Cached:         505076 kB
SwapCached:       2984 kB
Active:         136528 kB
Inactive:       442716 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1417344 kB
SwapTotal:     4192956 kB
SwapFree:      4153224 kB
Dirty:           55536 kB
Writeback:           0 kB
Mapped:          30320 kB
Slab:            44872 kB
Committed_AS:  1337012 kB
PageTables:       1768 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= 66429 MiB

End job on node4 on Sun Mar 11 19:39:36 UTC 2007