Trace number 1720109

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 19.524 19.5305

General information on the benchmark

Namevelev-engi-uns-1.0-4nd.cnf
MD5SUM700f8e86139a93fca212e22efa0f7d2b
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark16.1565
Satisfiable
(Un)Satisfiability was proved
Number of variables7000
Number of clauses67586
Sum of the clauses size190944
Maximum clause length58
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 256649
Number of clauses of size 35901
Number of clauses of size 4437
Number of clauses of size 5591
Number of clauses of size over 54007

Solver Data 

19.48/19.53	c clasp version 1.2.0-SAT09 
19.48/19.53	c Reading from ...652815/instance-1720109-1240652815.cnf
19.48/19.53	c Reading      : Done(0.040s)
19.48/19.53	c Preprocessing: |-\|Done(0.220s)
19.48/19.53	c Solving...
19.48/19.53	
19.48/19.53	c Models    : 0     
19.48/19.53	c Time         : 19.500s (Solve: 19.240s)
19.48/19.53	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-1720109-1240652815/watcher-1720109-1240652815 -o /tmp/evaluation-result-1720109-1240652815/solver-1720109-1240652815 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/clasp --file=HOME/instance-1720109-1240652815.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: 1.57 1.69 1.45 3/64 18111
/proc/meminfo: memFree=1881848/2055920 swapFree=4192812/4192956
[pid=18111] ppid=18109 vsize=2400 CPUtime=0
/proc/18111/stat : 18111 (clasp) R 18109 18111 17920 0 -1 4194304 362 0 0 0 0 0 0 0 18 0 1 0 93314722 2457600 346 1992294400 134512640 136057169 4294956144 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18111/statm: 600 346 144 377 0 220 0

[startup+0.024845 s]
/proc/loadavg: 1.57 1.69 1.45 3/64 18111
/proc/meminfo: memFree=1881848/2055920 swapFree=4192812/4192956
[pid=18111] ppid=18109 vsize=3456 CPUtime=0.02
/proc/18111/stat : 18111 (clasp) R 18109 18111 17920 0 -1 4194304 637 0 0 0 2 0 0 0 18 0 1 0 93314722 3538944 621 1992294400 134512640 136057169 4294956144 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18111/statm: 864 622 144 377 0 484 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3456

[startup+0.101853 s]
/proc/loadavg: 1.57 1.69 1.45 3/64 18111
/proc/meminfo: memFree=1881848/2055920 swapFree=4192812/4192956
[pid=18111] ppid=18109 vsize=6676 CPUtime=0.09
/proc/18111/stat : 18111 (clasp) R 18109 18111 17920 0 -1 4194304 1548 0 0 0 9 0 0 0 18 0 1 0 93314722 6836224 1377 1992294400 134512640 136057169 4294956144 18446744073709551615 134774074 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18111/statm: 1669 1377 168 377 0 1289 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6676

[startup+0.301876 s]
/proc/loadavg: 1.57 1.69 1.45 3/64 18111
/proc/meminfo: memFree=1881848/2055920 swapFree=4192812/4192956
[pid=18111] ppid=18109 vsize=6884 CPUtime=0.29
/proc/18111/stat : 18111 (clasp) R 18109 18111 17920 0 -1 4194304 1793 0 0 0 29 0 0 0 19 0 1 0 93314722 7049216 1489 1992294400 134512640 136057169 4294956144 18446744073709551615 134828263 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18111/statm: 1721 1489 182 377 0 1341 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6884

[startup+0.701923 s]
/proc/loadavg: 1.57 1.69 1.45 3/64 18111
/proc/meminfo: memFree=1881848/2055920 swapFree=4192812/4192956
[pid=18111] ppid=18109 vsize=6884 CPUtime=0.69
/proc/18111/stat : 18111 (clasp) R 18109 18111 17920 0 -1 4194304 1794 0 0 0 69 0 0 0 23 0 1 0 93314722 7049216 1490 1992294400 134512640 136057169 4294956144 18446744073709551615 134618238 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18111/statm: 1721 1490 183 377 0 1341 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6884

[startup+1.50201 s]
/proc/loadavg: 1.57 1.69 1.45 2/65 18112
/proc/meminfo: memFree=1876464/2055920 swapFree=4192812/4192956
[pid=18111] ppid=18109 vsize=7148 CPUtime=1.49
/proc/18111/stat : 18111 (clasp) R 18109 18111 17920 0 -1 4194304 1880 0 0 0 149 0 0 0 25 0 1 0 93314722 7319552 1576 1992294400 134512640 136057169 4294956144 18446744073709551615 135459759 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18111/statm: 1787 1576 183 377 0 1407 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7148

[startup+3.1012 s]
/proc/loadavg: 1.53 1.67 1.45 2/65 18112
/proc/meminfo: memFree=1874864/2055920 swapFree=4192812/4192956
[pid=18111] ppid=18109 vsize=10212 CPUtime=3.09
/proc/18111/stat : 18111 (clasp) R 18109 18111 17920 0 -1 4194304 2657 0 0 0 309 0 0 0 25 0 1 0 93314722 10457088 2353 1992294400 134512640 136057169 4294956144 18446744073709551615 134618141 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18111/statm: 2553 2353 183 377 0 2173 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 10212

[startup+6.30157 s]
/proc/loadavg: 1.53 1.67 1.45 2/65 18112
/proc/meminfo: memFree=1870576/2055920 swapFree=4192812/4192956
[pid=18111] ppid=18109 vsize=12592 CPUtime=6.29
/proc/18111/stat : 18111 (clasp) R 18109 18111 17920 0 -1 4194304 3244 0 0 0 628 1 0 0 25 0 1 0 93314722 12894208 2940 1992294400 134512640 136057169 4294956144 18446744073709551615 134823850 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18111/statm: 3148 2940 183 377 0 2768 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 12592

[startup+12.7013 s]
/proc/loadavg: 1.44 1.65 1.45 2/65 18112
/proc/meminfo: memFree=1868592/2055920 swapFree=4192812/4192956
[pid=18111] ppid=18109 vsize=14604 CPUtime=12.68
/proc/18111/stat : 18111 (clasp) R 18109 18111 17920 0 -1 4194304 3723 0 0 0 1267 1 0 0 25 0 1 0 93314722 14954496 3419 1992294400 134512640 136057169 4294956144 18446744073709551615 134825006 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18111/statm: 3651 3419 183 377 0 3271 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 14604

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

[startup+15.9017 s]
/proc/loadavg: 1.44 1.65 1.45 2/65 18112
/proc/meminfo: memFree=1867760/2055920 swapFree=4192812/4192956
[pid=18111] ppid=18109 vsize=15624 CPUtime=15.88
/proc/18111/stat : 18111 (clasp) R 18109 18111 17920 0 -1 4194304 3966 0 0 0 1587 1 0 0 25 0 1 0 93314722 15998976 3662 1992294400 134512640 136057169 4294956144 18446744073709551615 134823803 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18111/statm: 3906 3662 183 377 0 3526 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 15624

[startup+17.5019 s]
/proc/loadavg: 1.41 1.64 1.44 2/65 18112
/proc/meminfo: memFree=1867632/2055920 swapFree=4192812/4192956
[pid=18111] ppid=18109 vsize=15624 CPUtime=17.49
/proc/18111/stat : 18111 (clasp) R 18109 18111 17920 0 -1 4194304 3966 0 0 0 1748 1 0 0 25 0 1 0 93314722 15998976 3662 1992294400 134512640 136057169 4294956144 18446744073709551615 134823428 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18111/statm: 3906 3662 183 377 0 3526 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 15624

[startup+18.302 s]
/proc/loadavg: 1.41 1.64 1.44 2/65 18112
/proc/meminfo: memFree=1867632/2055920 swapFree=4192812/4192956
[pid=18111] ppid=18109 vsize=15624 CPUtime=18.28
/proc/18111/stat : 18111 (clasp) R 18109 18111 17920 0 -1 4194304 3966 0 0 0 1827 1 0 0 25 0 1 0 93314722 15998976 3662 1992294400 134512640 136057169 4294956144 18446744073709551615 134615621 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18111/statm: 3906 3662 183 377 0 3526 0
Current children cumulated CPU time (s) 18.28
Current children cumulated vsize (KiB) 15624

[startup+19.1011 s]
/proc/loadavg: 1.41 1.64 1.44 2/65 18112
/proc/meminfo: memFree=1867632/2055920 swapFree=4192812/4192956
[pid=18111] ppid=18109 vsize=15624 CPUtime=19.08
/proc/18111/stat : 18111 (clasp) R 18109 18111 17920 0 -1 4194304 3966 0 0 0 1907 1 0 0 25 0 1 0 93314722 15998976 3662 1992294400 134512640 136057169 4294956144 18446744073709551615 134618265 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18111/statm: 3906 3662 183 377 0 3526 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 15624

[startup+19.5011 s]
/proc/loadavg: 1.41 1.64 1.44 2/65 18112
/proc/meminfo: memFree=1867632/2055920 swapFree=4192812/4192956
[pid=18111] ppid=18109 vsize=15624 CPUtime=19.48
/proc/18111/stat : 18111 (clasp) R 18109 18111 17920 0 -1 4194304 3966 0 0 0 1947 1 0 0 25 0 1 0 93314722 15998976 3662 1992294400 134512640 136057169 4294956144 18446744073709551615 134618347 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18111/statm: 3906 3662 183 377 0 3526 0
Current children cumulated CPU time (s) 19.48
Current children cumulated vsize (KiB) 15624

Child status: 20
Real time (s): 19.5305
CPU time (s): 19.524
CPU user time (s): 19.503
CPU system time (s): 0.020996
CPU usage (%): 99.9667
Max. virtual memory (cumulated for all children) (KiB): 15624

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.503
system time used= 0.020996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3970
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= 45

runsolver used 0.014997 second user time and 0.048992 second system time

The end

Launcher Data 

Begin job on node20 at 2009-04-25 11:46:55
IDJOB=1720109
IDBENCH=69594
IDSOLVER=508
FILE ID=node20/1720109-1240652815
PBS_JOBID= 9186525
Free space on /tmp= 66244 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT_RACE08/cnf/velev-engi-uns-1.0-4nd.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-1720109-1240652815/watcher-1720109-1240652815 -o /tmp/evaluation-result-1720109-1240652815/solver-1720109-1240652815 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/clasp --file=HOME/instance-1720109-1240652815.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= 700f8e86139a93fca212e22efa0f7d2b
RANDOM SEED=1081603174

node20.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		: 3000.214
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	: 5931.00
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		: 3000.214
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:       1882328 kB
Buffers:          6396 kB
Cached:          94788 kB
SwapCached:          0 kB
Active:          33456 kB
Inactive:        81556 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1882328 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3016 kB
Writeback:           0 kB
Mapped:          23640 kB
Slab:            44620 kB
Committed_AS:   375276 kB
PageTables:       1396 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= 66244 MiB
End job on node20 at 2009-04-25 11:47:15