Trace number 334920

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) 4.73528 4.73815

General information on the benchmark

Namecrafted/Hard/contest05/phnf/
phnf-size10-exclusive-FIFO.used-as.sat04-991.sat05-4192.reshuffled-07.cnf
MD5SUM41f1c0479c607ce4a810d6cbab59e2f9
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 variables49509
Number of clauses3649657
Sum of the clauses size7337555
Maximum clause length10
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 23644023
Number of clauses of size 31
Number of clauses of size 47
Number of clauses of size 58
Number of clauses of size over 55618

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/334920-1173600309/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
4.59/4.69	c this formula cannot be solved by kcnfs-smp
4.59/4.69

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/node18/watcher-334920-1173600309 -o ROOT/results/node18/solver-334920-1173600309 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/334920-1173600309/kcnfs-smp /tmp/evaluation/334920-1173600309/instance-334920-1173600309.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: 1.08 1.02 1.01 3/77 29842
/proc/meminfo: memFree=1375408/2055920 swapFree=4153284/4192956
[pid=29842] ppid=29840 vsize=180916 CPUtime=0
/proc/29842/stat : 29842 (kcnfs-smp) R 29840 29842 29487 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 379986321 185257984 112 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/29842/statm: 45229 113 48 160 0 45067 0

[startup+0.036168 s]
/proc/loadavg: 1.08 1.02 1.01 3/77 29842
/proc/meminfo: memFree=1375408/2055920 swapFree=4153284/4192956
[pid=29842] ppid=29840 vsize=182632 CPUtime=0.03
/proc/29842/stat : 29842 (kcnfs-smp) R 29840 29842 29487 0 -1 4194304 563 0 0 0 3 0 0 0 18 0 1 0 379986321 187015168 548 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/29842/statm: 45658 549 48 160 0 45496 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 182632

[startup+0.101178 s]
/proc/loadavg: 1.08 1.02 1.01 3/77 29842
/proc/meminfo: memFree=1375408/2055920 swapFree=4153284/4192956
[pid=29842] ppid=29840 vsize=186196 CPUtime=0.09
/proc/29842/stat : 29842 (kcnfs-smp) R 29840 29842 29487 0 -1 4194304 1436 0 0 0 9 0 0 0 18 0 1 0 379986321 190664704 1421 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/29842/statm: 46549 1422 48 160 0 46387 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186196

[startup+0.301194 s]
/proc/loadavg: 1.08 1.02 1.01 3/77 29842
/proc/meminfo: memFree=1375408/2055920 swapFree=4153284/4192956
[pid=29842] ppid=29840 vsize=197020 CPUtime=0.29
/proc/29842/stat : 29842 (kcnfs-smp) R 29840 29842 29487 0 -1 4194304 4132 0 0 0 27 2 0 0 19 0 1 0 379986321 201748480 4117 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/29842/statm: 49255 4118 48 160 0 49093 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 197020

[startup+0.701231 s]
/proc/loadavg: 1.08 1.02 1.01 3/77 29842
/proc/meminfo: memFree=1375408/2055920 swapFree=4153284/4192956
[pid=29842] ppid=29840 vsize=218536 CPUtime=0.69
/proc/29842/stat : 29842 (kcnfs-smp) R 29840 29842 29487 0 -1 4194304 9517 0 0 0 64 5 0 0 22 0 1 0 379986321 223780864 9502 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/29842/statm: 54634 9503 48 160 0 54472 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 218536

[startup+1.50131 s]
/proc/loadavg: 1.15 1.03 1.01 2/78 29843
/proc/meminfo: memFree=1321448/2055920 swapFree=4153284/4192956
[pid=29842] ppid=29840 vsize=262492 CPUtime=1.49
/proc/29842/stat : 29842 (kcnfs-smp) R 29840 29842 29487 0 -1 4194304 20499 0 0 0 138 11 0 0 25 0 1 0 379986321 268791808 20484 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/29842/statm: 65623 20484 48 160 0 65461 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 262492

[startup+3.10146 s]
/proc/loadavg: 1.15 1.03 1.01 2/78 29843
/proc/meminfo: memFree=1260776/2055920 swapFree=4153284/4192956
[pid=29842] ppid=29840 vsize=350272 CPUtime=3.09
/proc/29842/stat : 29842 (kcnfs-smp) R 29840 29842 29487 0 -1 4194304 42461 0 0 0 289 20 0 0 25 0 1 0 379986321 358678528 42446 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/29842/statm: 87568 42446 48 160 0 87406 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 350272

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

[startup+3.90154 s]
/proc/loadavg: 1.15 1.03 1.01 2/78 29843
/proc/meminfo: memFree=1200360/2055920 swapFree=4153284/4192956
[pid=29842] ppid=29840 vsize=394228 CPUtime=3.89
/proc/29842/stat : 29842 (kcnfs-smp) R 29840 29842 29487 0 -1 4194304 53444 0 0 0 363 26 0 0 25 0 1 0 379986321 403689472 53429 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/29842/statm: 98557 53430 48 160 0 98395 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 394228

[startup+4.30158 s]
/proc/loadavg: 1.15 1.03 1.01 2/78 29843
/proc/meminfo: memFree=1139688/2055920 swapFree=4153284/4192956
[pid=29842] ppid=29840 vsize=416536 CPUtime=4.29
/proc/29842/stat : 29842 (kcnfs-smp) R 29840 29842 29487 0 -1 4194304 59014 0 0 0 401 28 0 0 25 0 1 0 379986321 426532864 58999 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/29842/statm: 104134 59000 48 160 0 103972 0
Current children cumulated CPU time (s) 4.29
Current children cumulated vsize (KiB) 416536

[startup+4.70162 s]
/proc/loadavg: 1.15 1.03 1.01 2/78 29843
/proc/meminfo: memFree=1139688/2055920 swapFree=4153284/4192956
[pid=29842] ppid=29840 vsize=0 CPUtime=4.69
/proc/29842/stat : 29842 (kcnfs-smp) R 29840 29842 29487 0 -1 4194308 64418 0 0 0 439 30 0 0 25 0 1 0 379986321 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/29842/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 0

Child status: 1
Real time (s): 4.73815
CPU time (s): 4.73528
CPU user time (s): 4.39033
CPU system time (s): 0.344947
CPU usage (%): 99.9393
Max. virtual memory (cumulated for all children) (KiB): 432772

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.39033
system time used= 0.344947
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 64418
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= 6

runsolver used 0.006998 second user time and 0.017997 second system time

The end

Launcher Data (download as text)

Begin job on node18 on Sun Mar 11 08:05:18 UTC 2007

IDJOB= 334920
IDBENCH= 24639
IDSOLVER= 112
FILE ID= node18/334920-1173600309

PBS_JOBID= 4101240

Free space on /tmp= 66460 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/crafted/Hard/contest05/phnf/phnf-size10-exclusive-FIFO.used-as.sat04-991.sat05-4192.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/334920-1173600309/kcnfs-smp /tmp/evaluation/334920-1173600309/instance-334920-1173600309.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-334920-1173600309 -o ROOT/results/node18/solver-334920-1173600309 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/334920-1173600309/kcnfs-smp /tmp/evaluation/334920-1173600309/instance-334920-1173600309.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  41f1c0479c607ce4a810d6cbab59e2f9

RANDOM SEED= 761323475

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node18.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		: 3000.236
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		: 3000.236
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:       1375816 kB
Buffers:         47416 kB
Cached:         550080 kB
SwapCached:       3080 kB
Active:         320388 kB
Inactive:       300312 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1375816 kB
SwapTotal:     4192956 kB
SwapFree:      4153284 kB
Dirty:           55360 kB
Writeback:           0 kB
Mapped:          30120 kB
Slab:            45092 kB
Committed_AS:  1271376 kB
PageTables:       1668 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= 66460 MiB

End job on node18 on Sun Mar 11 08:05:23 UTC 2007