Trace number 334921

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) 4.82927 4.8318

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/334921-1173600324/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
4.69/4.79	c this formula cannot been solved by kcnfs
4.69/4.79

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-334921-1173600324 -o ROOT/results/node18/solver-334921-1173600324 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/334921-1173600324/kcnfs-2006 /tmp/evaluation/334921-1173600324/instance-334921-1173600324.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: 1.05 1.01 1.00 3/77 29889
/proc/meminfo: memFree=1375600/2055920 swapFree=4153284/4192956
[pid=29889] ppid=29887 vsize=180908 CPUtime=0
/proc/29889/stat : 29889 (kcnfs-2006) R 29887 29889 29487 0 -1 4194304 122 0 0 0 0 0 0 0 18 0 1 0 379987835 185249792 107 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/29889/statm: 45227 107 47 158 0 45067 0

[startup+0.0807349 s]
/proc/loadavg: 1.05 1.01 1.00 3/77 29889
/proc/meminfo: memFree=1375600/2055920 swapFree=4153284/4192956
[pid=29889] ppid=29887 vsize=185000 CPUtime=0.07
/proc/29889/stat : 29889 (kcnfs-2006) R 29887 29889 29487 0 -1 4194304 1149 0 0 0 7 0 0 0 18 0 1 0 379987835 189440000 1134 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/29889/statm: 46250 1134 47 158 0 46090 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 185000

[startup+0.102736 s]
/proc/loadavg: 1.05 1.01 1.00 3/77 29889
/proc/meminfo: memFree=1375600/2055920 swapFree=4153284/4192956
[pid=29889] ppid=29887 vsize=186188 CPUtime=0.09
/proc/29889/stat : 29889 (kcnfs-2006) R 29887 29889 29487 0 -1 4194304 1445 0 0 0 9 0 0 0 18 0 1 0 379987835 190656512 1430 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/29889/statm: 46547 1430 47 158 0 46387 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186188

[startup+0.301755 s]
/proc/loadavg: 1.05 1.01 1.00 3/77 29889
/proc/meminfo: memFree=1375600/2055920 swapFree=4153284/4192956
[pid=29889] ppid=29887 vsize=196880 CPUtime=0.29
/proc/29889/stat : 29889 (kcnfs-2006) R 29887 29889 29487 0 -1 4194304 4123 0 0 0 28 1 0 0 19 0 1 0 379987835 201605120 4108 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/29889/statm: 49220 4109 47 158 0 49060 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196880

[startup+0.702794 s]
/proc/loadavg: 1.05 1.01 1.00 3/77 29889
/proc/meminfo: memFree=1375600/2055920 swapFree=4153284/4192956
[pid=29889] ppid=29887 vsize=218528 CPUtime=0.7
/proc/29889/stat : 29889 (kcnfs-2006) R 29887 29889 29487 0 -1 4194304 9518 0 0 0 66 4 0 0 22 0 1 0 379987835 223772672 9503 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/29889/statm: 54632 9503 47 158 0 54472 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 218528

[startup+1.50188 s]
/proc/loadavg: 1.05 1.01 1.00 2/78 29890
/proc/meminfo: memFree=1321512/2055920 swapFree=4153284/4192956
[pid=29889] ppid=29887 vsize=261428 CPUtime=1.49
/proc/29889/stat : 29889 (kcnfs-2006) R 29887 29889 29487 0 -1 4194304 20252 0 0 0 140 9 0 0 25 0 1 0 379987835 267702272 20237 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/29889/statm: 65357 20238 47 158 0 65197 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 261428

[startup+3.10103 s]
/proc/loadavg: 1.05 1.01 1.00 2/78 29890
/proc/meminfo: memFree=1262760/2055920 swapFree=4153284/4192956
[pid=29889] ppid=29887 vsize=347096 CPUtime=3.09
/proc/29889/stat : 29889 (kcnfs-2006) R 29887 29889 29487 0 -1 4194304 41657 0 0 0 289 20 0 0 25 0 1 0 379987835 355426304 41642 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/29889/statm: 86774 41643 47 158 0 86614 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 347096

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

[startup+3.9011 s]
/proc/loadavg: 1.05 1.01 1.00 2/78 29890
/proc/meminfo: memFree=1203496/2055920 swapFree=4153284/4192956
[pid=29889] ppid=29887 vsize=390128 CPUtime=3.89
/proc/29889/stat : 29889 (kcnfs-2006) R 29887 29889 29487 0 -1 4194304 52410 0 0 0 365 24 0 0 25 0 1 0 379987835 399491072 52395 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/29889/statm: 97532 52395 47 158 0 97372 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 390128

[startup+4.30114 s]
/proc/loadavg: 1.05 1.01 1.00 2/78 29890
/proc/meminfo: memFree=1144232/2055920 swapFree=4153284/4192956
[pid=29889] ppid=29887 vsize=411776 CPUtime=4.29
/proc/29889/stat : 29889 (kcnfs-2006) R 29887 29889 29487 0 -1 4194304 57847 0 0 0 403 26 0 0 25 0 1 0 379987835 421658624 57832 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/29889/statm: 102944 57833 47 158 0 102784 0
Current children cumulated CPU time (s) 4.29
Current children cumulated vsize (KiB) 411776

[startup+4.70118 s]
/proc/loadavg: 1.05 1.01 1.00 2/78 29890
/proc/meminfo: memFree=1144232/2055920 swapFree=4153284/4192956
[pid=29889] ppid=29887 vsize=433160 CPUtime=4.69
/proc/29889/stat : 29889 (kcnfs-2006) R 29887 29889 29487 0 -1 4194304 63190 0 0 0 440 29 0 0 25 0 1 0 379987835 443555840 63175 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/29889/statm: 108290 63176 47 158 0 108130 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 433160

[startup+4.80119 s]
/proc/loadavg: 1.05 1.01 1.00 2/78 29890
/proc/meminfo: memFree=1144232/2055920 swapFree=4153284/4192956
[pid=29889] ppid=29887 vsize=0 CPUtime=4.79
/proc/29889/stat : 29889 (kcnfs-2006) R 29887 29889 29487 0 -1 4194308 64416 0 0 0 449 30 0 0 25 0 1 0 379987835 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/29889/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 4.79
Current children cumulated vsize (KiB) 0

Child status: 1
Real time (s): 4.8318
CPU time (s): 4.82927
CPU user time (s): 4.49432
CPU system time (s): 0.334949
CPU usage (%): 99.9475
Max. virtual memory (cumulated for all children) (KiB): 433160

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.49432
system time used= 0.334949
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 64416
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= 5

runsolver used 0.005999 second user time and 0.017997 second system time

The end

Launcher Data (download as text)

Begin job on node18 on Sun Mar 11 08:05:33 UTC 2007

IDJOB= 334921
IDBENCH= 24639
IDSOLVER= 113
FILE ID= node18/334921-1173600324

PBS_JOBID= 4101240

Free space on /tmp= 66460 MiB

SOLVER NAME= KCNFS 2006
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/334921-1173600324/kcnfs-2006 /tmp/evaluation/334921-1173600324/instance-334921-1173600324.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-334921-1173600324 -o ROOT/results/node18/solver-334921-1173600324 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/334921-1173600324/kcnfs-2006 /tmp/evaluation/334921-1173600324/instance-334921-1173600324.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  41f1c0479c607ce4a810d6cbab59e2f9

RANDOM SEED= 880654500

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:       1376008 kB
Buffers:         47496 kB
Cached:         550068 kB
SwapCached:       3080 kB
Active:         337540 kB
Inactive:       283260 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1376008 kB
SwapTotal:     4192956 kB
SwapFree:      4153284 kB
Dirty:           55464 kB
Writeback:           0 kB
Mapped:          30124 kB
Slab:            44816 kB
Committed_AS:  1271388 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 08:05:38 UTC 2007