Trace number 1556795

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
clasp 1.2.0-SAT09-32UNSAT 27.3478 27.3595

General information on the benchmark

NameAPPLICATIONS/crypto/
md5gen/gus-md5-05.cnf
MD5SUM2802e980ef7a0af021d80df126a2e28c
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark10.1175
Satisfiable
(Un)Satisfiability was proved
Number of variables68827
Number of clauses224473
Sum of the clauses size581793
Maximum clause length3
Minimum clause length1
Number of clauses of size 1129
Number of clauses of size 291368
Number of clauses of size 3132976
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

27.28/27.35	c clasp version 1.2.0-SAT09 
27.28/27.35	c Reading from ...750578/instance-1556795-1238750578.cnf
27.28/27.35	c Reading      : Done(0.140s)
27.28/27.35	c Preprocessing: |-\Done(1.480s)
27.28/27.35	c Solving...
27.28/27.35	
27.28/27.35	c Models    : 0     
27.28/27.35	c Time         : 27.220s (Solve: 25.600s)
27.28/27.35	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1556795-1238750578/watcher-1556795-1238750578 -o /tmp/evaluation-result-1556795-1238750578/solver-1556795-1238750578 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/clasp --file=HOME/instance-1556795-1238750578.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512 

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): 1800 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: 1.13 1.00 1.00 3/69 314
/proc/meminfo: memFree=1768472/2055920 swapFree=4171336/4192956
[pid=314] ppid=312 vsize=3336 CPUtime=0
/proc/314/stat : 314 (clasp) R 312 314 32405 0 -1 4194304 628 0 0 0 0 0 0 0 18 0 1 0 1147720982 3416064 433 1992294400 134512640 136057169 4294956160 18446744073709551615 135459759 0 0 4096 16386 0 0 0 17 1 0 0
/proc/314/statm: 834 441 139 377 0 454 0

[startup+0.0819279 s]
/proc/loadavg: 1.13 1.00 1.00 3/69 314
/proc/meminfo: memFree=1768472/2055920 swapFree=4171336/4192956
[pid=314] ppid=312 vsize=11764 CPUtime=0.07
/proc/314/stat : 314 (clasp) R 312 314 32405 0 -1 4194304 2890 0 0 0 6 1 0 0 18 0 1 0 1147720982 12046336 2575 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/314/statm: 2941 2575 147 377 0 2561 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 11764

[startup+0.101932 s]
/proc/loadavg: 1.13 1.00 1.00 3/69 314
/proc/meminfo: memFree=1768472/2055920 swapFree=4171336/4192956
[pid=314] ppid=312 vsize=12956 CPUtime=0.09
/proc/314/stat : 314 (clasp) R 312 314 32405 0 -1 4194304 3287 0 0 0 8 1 0 0 18 0 1 0 1147720982 13266944 2835 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/314/statm: 3239 2835 147 377 0 2859 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12956

[startup+0.30195 s]
/proc/loadavg: 1.13 1.00 1.00 3/69 314
/proc/meminfo: memFree=1768472/2055920 swapFree=4171336/4192956
[pid=314] ppid=312 vsize=23612 CPUtime=0.29
/proc/314/stat : 314 (clasp) R 312 314 32405 0 -1 4194304 6777 0 0 0 26 3 0 0 19 0 1 0 1147720982 24178688 5449 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/314/statm: 5903 5450 165 377 0 5523 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 23612

[startup+0.70199 s]
/proc/loadavg: 1.13 1.00 1.00 3/69 314
/proc/meminfo: memFree=1768472/2055920 swapFree=4171336/4192956
[pid=314] ppid=312 vsize=27936 CPUtime=0.69
/proc/314/stat : 314 (clasp) R 312 314 32405 0 -1 4194304 7975 0 0 0 65 4 0 0 22 0 1 0 1147720982 28606464 6444 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/314/statm: 6984 6444 170 377 0 6604 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 27936

[startup+1.50107 s]
/proc/loadavg: 1.13 1.00 1.00 2/70 315
/proc/meminfo: memFree=1739792/2055920 swapFree=4171336/4192956
[pid=314] ppid=312 vsize=34756 CPUtime=1.48
/proc/314/stat : 314 (clasp) R 312 314 32405 0 -1 4194304 9667 0 0 0 144 4 0 0 25 0 1 0 1147720982 35590144 8136 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/314/statm: 8689 8136 172 377 0 8309 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 34756

[startup+3.10124 s]
/proc/loadavg: 1.12 1.00 1.00 2/70 315
/proc/meminfo: memFree=1738640/2055920 swapFree=4171336/4192956
[pid=314] ppid=312 vsize=31500 CPUtime=3.08
/proc/314/stat : 314 (clasp) R 312 314 32405 0 -1 4194304 10029 0 0 0 304 4 0 0 25 0 1 0 1147720982 32256000 7522 1992294400 134512640 136057169 4294956160 18446744073709551615 134828617 0 0 4096 16386 0 0 0 17 1 0 0
/proc/314/statm: 7875 7522 182 377 0 7495 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 31500

[startup+6.30156 s]
/proc/loadavg: 1.12 1.00 1.00 2/70 315
/proc/meminfo: memFree=1738640/2055920 swapFree=4171336/4192956
[pid=314] ppid=312 vsize=31500 CPUtime=6.28
/proc/314/stat : 314 (clasp) R 312 314 32405 0 -1 4194304 10029 0 0 0 624 4 0 0 25 0 1 0 1147720982 32256000 7522 1992294400 134512640 136057169 4294956160 18446744073709551615 134823794 0 0 4096 16386 0 0 0 17 1 0 0
/proc/314/statm: 7875 7522 182 377 0 7495 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 31500

[startup+12.7012 s]
/proc/loadavg: 1.10 1.00 1.00 2/70 315
/proc/meminfo: memFree=1738512/2055920 swapFree=4171336/4192956
[pid=314] ppid=312 vsize=31500 CPUtime=12.68
/proc/314/stat : 314 (clasp) R 312 314 32405 0 -1 4194304 10029 0 0 0 1264 4 0 0 25 0 1 0 1147720982 32256000 7522 1992294400 134512640 136057169 4294956160 18446744073709551615 134825027 0 0 4096 16386 0 0 0 17 1 0 0
/proc/314/statm: 7875 7522 182 377 0 7495 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 31500

[startup+25.5015 s]
/proc/loadavg: 1.08 1.00 1.00 2/70 315
/proc/meminfo: memFree=1738640/2055920 swapFree=4171336/4192956
[pid=314] ppid=312 vsize=31500 CPUtime=25.48
/proc/314/stat : 314 (clasp) R 312 314 32405 0 -1 4194304 10029 0 0 0 2543 5 0 0 25 0 1 0 1147720982 32256000 7522 1992294400 134512640 136057169 4294956160 18446744073709551615 134823846 0 0 4096 16386 0 0 0 17 1 0 0
/proc/314/statm: 7875 7522 182 377 0 7495 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 31500

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

[startup+26.3016 s]
/proc/loadavg: 1.08 1.00 1.00 2/70 315
/proc/meminfo: memFree=1738640/2055920 swapFree=4171336/4192956
[pid=314] ppid=312 vsize=31500 CPUtime=26.29
/proc/314/stat : 314 (clasp) R 312 314 32405 0 -1 4194304 10029 0 0 0 2624 5 0 0 25 0 1 0 1147720982 32256000 7522 1992294400 134512640 136057169 4294956160 18446744073709551615 134823938 0 0 4096 16386 0 0 0 17 1 0 0
/proc/314/statm: 7875 7522 182 377 0 7495 0
Current children cumulated CPU time (s) 26.29
Current children cumulated vsize (KiB) 31500

[startup+27.1017 s]
/proc/loadavg: 1.08 1.00 1.00 2/70 315
/proc/meminfo: memFree=1738640/2055920 swapFree=4171336/4192956
[pid=314] ppid=312 vsize=31500 CPUtime=27.08
/proc/314/stat : 314 (clasp) R 312 314 32405 0 -1 4194304 10029 0 0 0 2703 5 0 0 25 0 1 0 1147720982 32256000 7522 1992294400 134512640 136057169 4294956160 18446744073709551615 134823406 0 0 4096 16386 0 0 0 17 1 0 0
/proc/314/statm: 7875 7522 182 377 0 7495 0
Current children cumulated CPU time (s) 27.08
Current children cumulated vsize (KiB) 31500

[startup+27.3017 s]
/proc/loadavg: 1.08 1.00 1.00 2/70 315
/proc/meminfo: memFree=1738640/2055920 swapFree=4171336/4192956
[pid=314] ppid=312 vsize=21424 CPUtime=27.28
/proc/314/stat : 314 (clasp) R 312 314 32405 0 -1 4194304 10034 0 0 0 2723 5 0 0 25 0 1 0 1147720982 21938176 5075 1992294400 134512640 136057169 4294956160 18446744073709551615 134764163 0 0 4096 16386 0 0 0 17 1 0 0
/proc/314/statm: 5356 5075 187 377 0 4976 0
Current children cumulated CPU time (s) 27.28
Current children cumulated vsize (KiB) 21424

Child status: 20
Real time (s): 27.3595
CPU time (s): 27.3478
CPU user time (s): 27.2879
CPU system time (s): 0.05999
CPU usage (%): 99.9573
Max. virtual memory (cumulated for all children) (KiB): 35952

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.2879
system time used= 0.05999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10034
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= 2
involuntary context switches= 34

runsolver used 0.031995 second user time and 0.076988 second system time

The end

Launcher Data 

Begin job on node44 at 2009-04-03 11:22:58
IDJOB=1556795
IDBENCH=70826
IDSOLVER=508
FILE ID=node44/1556795-1238750578
PBS_JOBID= 9085431
Free space on /tmp= 66476 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT09/APPLICATIONS/crypto/md5gen/gus-md5-05.cnf
COMMAND LINE= HOME/clasp --file=BENCHNAME --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1556795-1238750578/watcher-1556795-1238750578 -o /tmp/evaluation-result-1556795-1238750578/solver-1556795-1238750578 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/clasp --file=HOME/instance-1556795-1238750578.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 2802e980ef7a0af021d80df126a2e28c
RANDOM SEED=890929095

node44.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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:       1768952 kB
Buffers:         32640 kB
Cached:         172344 kB
SwapCached:      11052 kB
Active:          68284 kB
Inactive:       149236 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1768952 kB
SwapTotal:     4192956 kB
SwapFree:      4171336 kB
Dirty:            6096 kB
Writeback:           0 kB
Mapped:          18224 kB
Slab:            54856 kB
Committed_AS:  2953296 kB
PageTables:       1796 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= 66472 MiB
End job on node44 at 2009-04-03 11:23:26