Trace number 334753

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 2006? (exit code) 2.26066 2.26339

General information on the benchmark

Namecrafted/Hard/contest05/phnf/
phnf-size10-exclusive-philo.used-as.sat04-988.sat05-4195.reshuffled-07.cnf
MD5SUM45589f445aa56f109f82baade7facf9a
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 variables36304
Number of clauses1711065
Sum of the clauses size3450220
Maximum clause length10
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21706958
Number of clauses of size 30
Number of clauses of size 45
Number of clauses of size 57
Number of clauses of size over 54095

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/334753-1173590738/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
2.19/2.24	c this formula cannot been solved by kcnfs
2.19/2.24

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/node3/watcher-334753-1173590738 -o ROOT/results/node3/solver-334753-1173590738 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/334753-1173590738/kcnfs-2006 /tmp/evaluation/334753-1173590738/instance-334753-1173590738.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 1.00 1.00 3/77 5114
/proc/meminfo: memFree=1401960/2055920 swapFree=4158660/4192956
[pid=5114] ppid=5112 vsize=180908 CPUtime=0
/proc/5114/stat : 5114 (kcnfs-2006) R 5112 5114 4628 0 -1 4194304 124 0 0 0 0 0 0 0 18 0 1 0 379029040 185249792 109 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5114/statm: 45227 110 47 158 0 45067 0

[startup+0.00978108 s]
/proc/loadavg: 1.08 1.00 1.00 3/77 5114
/proc/meminfo: memFree=1401960/2055920 swapFree=4158660/4192956
[pid=5114] ppid=5112 vsize=181172 CPUtime=0
/proc/5114/stat : 5114 (kcnfs-2006) R 5112 5114 4628 0 -1 4194304 191 0 0 0 0 0 0 0 18 0 1 0 379029040 185520128 176 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5114/statm: 45293 177 47 158 0 45133 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 181172

[startup+0.101788 s]
/proc/loadavg: 1.08 1.00 1.00 3/77 5114
/proc/meminfo: memFree=1401960/2055920 swapFree=4158660/4192956
[pid=5114] ppid=5112 vsize=186188 CPUtime=0.09
/proc/5114/stat : 5114 (kcnfs-2006) R 5112 5114 4628 0 -1 4194304 1430 0 0 0 9 0 0 0 18 0 1 0 379029040 190656512 1415 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5114/statm: 46547 1415 47 158 0 46387 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186188

[startup+0.301804 s]
/proc/loadavg: 1.08 1.00 1.00 3/77 5114
/proc/meminfo: memFree=1401960/2055920 swapFree=4158660/4192956
[pid=5114] ppid=5112 vsize=196880 CPUtime=0.29
/proc/5114/stat : 5114 (kcnfs-2006) R 5112 5114 4628 0 -1 4194304 4118 0 0 0 28 1 0 0 19 0 1 0 379029040 201605120 4103 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5114/statm: 49220 4103 47 158 0 49060 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196880

[startup+0.701837 s]
/proc/loadavg: 1.08 1.00 1.00 3/77 5114
/proc/meminfo: memFree=1401960/2055920 swapFree=4158660/4192956
[pid=5114] ppid=5112 vsize=218396 CPUtime=0.69
/proc/5114/stat : 5114 (kcnfs-2006) R 5112 5114 4628 0 -1 4194304 9502 0 0 0 65 4 0 0 23 0 1 0 379029040 223637504 9487 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/5114/statm: 54599 9488 47 158 0 54439 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 218396

[startup+1.5019 s]
/proc/loadavg: 1.08 1.00 1.00 2/78 5115
/proc/meminfo: memFree=1347808/2055920 swapFree=4158660/4192956
[pid=5114] ppid=5112 vsize=261824 CPUtime=1.49
/proc/5114/stat : 5114 (kcnfs-2006) R 5112 5114 4628 0 -1 4194304 20336 0 0 0 140 9 0 0 25 0 1 0 379029040 268107776 20321 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5114/statm: 65456 20321 47 158 0 65296 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 261824

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

[startup+1.90194 s]
/proc/loadavg: 1.08 1.00 1.00 2/78 5115
/proc/meminfo: memFree=1347808/2055920 swapFree=4158660/4192956
[pid=5114] ppid=5112 vsize=283472 CPUtime=1.89
/proc/5114/stat : 5114 (kcnfs-2006) R 5112 5114 4628 0 -1 4194304 25751 0 0 0 177 12 0 0 25 0 1 0 379029040 290275328 25736 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5114/statm: 70868 25737 47 158 0 70708 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 283472

[startup+2.10195 s]
/proc/loadavg: 1.15 1.02 1.01 2/78 5115
/proc/meminfo: memFree=1287584/2055920 swapFree=4158660/4192956
[pid=5114] ppid=5112 vsize=294296 CPUtime=2.09
/proc/5114/stat : 5114 (kcnfs-2006) R 5112 5114 4628 0 -1 4194304 28474 0 0 0 196 13 0 0 25 0 1 0 379029040 301359104 28459 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5114/statm: 73574 28459 47 158 0 73414 0
Current children cumulated CPU time (s) 2.09
Current children cumulated vsize (KiB) 294296

[startup+2.20596 s]
/proc/loadavg: 1.15 1.02 1.01 2/78 5115
/proc/meminfo: memFree=1287584/2055920 swapFree=4158660/4192956
[pid=5114] ppid=5112 vsize=299708 CPUtime=2.19
/proc/5114/stat : 5114 (kcnfs-2006) R 5112 5114 4628 0 -1 4194304 29804 0 0 0 205 14 0 0 25 0 1 0 379029040 306900992 29789 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/5114/statm: 74927 29789 47 158 0 74767 0
Current children cumulated CPU time (s) 2.19
Current children cumulated vsize (KiB) 299708

Child status: 1
Real time (s): 2.26339
CPU time (s): 2.26066
CPU user time (s): 2.08968
CPU system time (s): 0.170974
CPU usage (%): 99.8794
Max. virtual memory (cumulated for all children) (KiB): 299708

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.08968
system time used= 0.170974
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 30289
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= 48

runsolver used 0.003999 second user time and 0.011998 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Sun Mar 11 05:25:42 UTC 2007

IDJOB= 334753
IDBENCH= 24635
IDSOLVER= 113
FILE ID= node3/334753-1173590738

PBS_JOBID= 4101226

Free space on /tmp= 66470 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/crafted/Hard/contest05/phnf/phnf-size10-exclusive-philo.used-as.sat04-988.sat05-4195.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/334753-1173590738/kcnfs-2006 /tmp/evaluation/334753-1173590738/instance-334753-1173590738.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-334753-1173590738 -o ROOT/results/node3/solver-334753-1173590738 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/334753-1173590738/kcnfs-2006 /tmp/evaluation/334753-1173590738/instance-334753-1173590738.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  45589f445aa56f109f82baade7facf9a

RANDOM SEED= 764253898

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.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		: 3000.241
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		: 3000.241
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:       1402368 kB
Buffers:         52256 kB
Cached:         506312 kB
SwapCached:       2636 kB
Active:         353580 kB
Inactive:       228132 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1402368 kB
SwapTotal:     4192956 kB
SwapFree:      4158660 kB
Dirty:           27524 kB
Writeback:           0 kB
Mapped:          30796 kB
Slab:            57496 kB
Committed_AS:  1540476 kB
PageTables:       1656 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= 66470 MiB

End job on node3 on Sun Mar 11 05:25:44 UTC 2007