Trace number 1733049

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 26.455 26.4612

General information on the benchmark

NameCRAFTED/ramseycube/
Q32inK09.cnf
MD5SUM58cbf73dc7f1fd4bb325152069db03fb
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark16.8174
Satisfiable
(Un)Satisfiability was proved
Number of variables36
Number of clauses7938
Sum of the clauses size92232
Maximum clause length12
Minimum clause length4
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 4378
Number of clauses of size 50
Number of clauses of size over 57560

Solver Data 

26.39/26.46	c clasp version 1.2.0-SAT09 
26.39/26.46	c Reading from ...784692/instance-1733049-1240784692.cnf
26.39/26.46	c Reading      : Done(0.000s)
26.39/26.46	c Preprocessing: |-Done(0.330s)
26.39/26.46	c Solving...
26.39/26.46	
26.39/26.46	c Models    : 0     
26.39/26.46	c Time         : 26.450s (Solve: 26.120s)
26.39/26.46	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-1733049-1240784692/watcher-1733049-1240784692 -o /tmp/evaluation-result-1733049-1240784692/solver-1733049-1240784692 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/clasp --file=HOME/instance-1733049-1240784692.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: 0.99 0.98 0.99 3/64 24289
/proc/meminfo: memFree=1797760/2055920 swapFree=4181212/4192956
[pid=24289] ppid=24287 vsize=1828 CPUtime=0
/proc/24289/stat : 24289 (clasp) R 24287 24289 23594 0 -1 4194304 219 0 0 0 0 0 0 0 18 0 1 0 106496774 1871872 203 1992294400 134512640 136057169 4294956144 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/24289/statm: 457 204 144 377 0 77 0

[startup+0.0661769 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 24289
/proc/meminfo: memFree=1797760/2055920 swapFree=4181212/4192956
[pid=24289] ppid=24287 vsize=2900 CPUtime=0.06
/proc/24289/stat : 24289 (clasp) R 24287 24289 23594 0 -1 4194304 493 0 0 0 6 0 0 0 18 0 1 0 106496774 2969600 477 1992294400 134512640 136057169 4294956144 18446744073709551615 134774448 0 0 4096 16386 0 0 0 17 1 0 0
/proc/24289/statm: 725 477 165 377 0 345 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2900

[startup+0.101176 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 24289
/proc/meminfo: memFree=1797760/2055920 swapFree=4181212/4192956
[pid=24289] ppid=24287 vsize=2900 CPUtime=0.09
/proc/24289/stat : 24289 (clasp) R 24287 24289 23594 0 -1 4194304 493 0 0 0 9 0 0 0 18 0 1 0 106496774 2969600 477 1992294400 134512640 136057169 4294956144 18446744073709551615 134774451 0 0 4096 16386 0 0 0 17 1 0 0
/proc/24289/statm: 725 477 165 377 0 345 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2900

[startup+0.30119 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 24289
/proc/meminfo: memFree=1797760/2055920 swapFree=4181212/4192956
[pid=24289] ppid=24287 vsize=2900 CPUtime=0.29
/proc/24289/stat : 24289 (clasp) R 24287 24289 23594 0 -1 4194304 493 0 0 0 29 0 0 0 19 0 1 0 106496774 2969600 477 1992294400 134512640 136057169 4294956144 18446744073709551615 134774448 0 0 4096 16386 0 0 0 17 1 0 0
/proc/24289/statm: 725 477 165 377 0 345 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2900

[startup+0.701226 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 24289
/proc/meminfo: memFree=1797760/2055920 swapFree=4181212/4192956
[pid=24289] ppid=24287 vsize=3164 CPUtime=0.69
/proc/24289/stat : 24289 (clasp) R 24287 24289 23594 0 -1 4194304 587 0 0 0 69 0 0 0 22 0 1 0 106496774 3239936 571 1992294400 134512640 136057169 4294956144 18446744073709551615 134823857 0 0 4096 16386 0 0 0 17 1 0 0
/proc/24289/statm: 791 571 182 377 0 411 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3164

[startup+1.5013 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 24290
/proc/meminfo: memFree=1796024/2055920 swapFree=4181212/4192956
[pid=24289] ppid=24287 vsize=3300 CPUtime=1.49
/proc/24289/stat : 24289 (clasp) R 24287 24289 23594 0 -1 4194304 625 0 0 0 149 0 0 0 25 0 1 0 106496774 3379200 609 1992294400 134512640 136057169 4294956144 18446744073709551615 134612817 0 0 4096 16386 0 0 0 17 1 0 0
/proc/24289/statm: 825 609 182 377 0 445 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3300

[startup+3.10144 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 24290
/proc/meminfo: memFree=1795704/2055920 swapFree=4181212/4192956
[pid=24289] ppid=24287 vsize=3568 CPUtime=3.09
/proc/24289/stat : 24289 (clasp) R 24287 24289 23594 0 -1 4194304 700 0 0 0 309 0 0 0 25 0 1 0 106496774 3653632 684 1992294400 134512640 136057169 4294956144 18446744073709551615 134823929 0 0 4096 16386 0 0 0 17 1 0 0
/proc/24289/statm: 892 684 182 377 0 512 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3568

[startup+6.30173 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 24290
/proc/meminfo: memFree=1795192/2055920 swapFree=4181212/4192956
[pid=24289] ppid=24287 vsize=3988 CPUtime=6.29
/proc/24289/stat : 24289 (clasp) R 24287 24289 23594 0 -1 4194304 771 0 0 0 629 0 0 0 25 0 1 0 106496774 4083712 755 1992294400 134512640 136057169 4294956144 18446744073709551615 134823938 0 0 4096 16386 0 0 0 17 1 0 0
/proc/24289/statm: 997 755 182 377 0 617 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 3988

[startup+12.7013 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 24290
/proc/meminfo: memFree=1794744/2055920 swapFree=4181212/4192956
[pid=24289] ppid=24287 vsize=4280 CPUtime=12.69
/proc/24289/stat : 24289 (clasp) R 24287 24289 23594 0 -1 4194304 867 0 0 0 1269 0 0 0 25 0 1 0 106496774 4382720 851 1992294400 134512640 136057169 4294956144 18446744073709551615 134618315 0 0 4096 16386 0 0 0 17 1 0 0
/proc/24289/statm: 1070 851 182 377 0 690 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 4280

[startup+25.5025 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 24290
/proc/meminfo: memFree=1794296/2055920 swapFree=4181212/4192956
[pid=24289] ppid=24287 vsize=4720 CPUtime=25.48
/proc/24289/stat : 24289 (clasp) R 24287 24289 23594 0 -1 4194304 968 0 0 0 2548 0 0 0 25 0 1 0 106496774 4833280 952 1992294400 134512640 136057169 4294956144 18446744073709551615 134823938 0 0 4096 16386 0 0 0 17 1 0 0
/proc/24289/statm: 1180 952 182 377 0 800 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 4720

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

[startup+25.9015 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 24290
/proc/meminfo: memFree=1794296/2055920 swapFree=4181212/4192956
[pid=24289] ppid=24287 vsize=4720 CPUtime=25.88
/proc/24289/stat : 24289 (clasp) R 24287 24289 23594 0 -1 4194304 968 0 0 0 2588 0 0 0 25 0 1 0 106496774 4833280 952 1992294400 134512640 136057169 4294956144 18446744073709551615 134823938 0 0 4096 16386 0 0 0 17 1 0 0
/proc/24289/statm: 1180 952 182 377 0 800 0
Current children cumulated CPU time (s) 25.88
Current children cumulated vsize (KiB) 4720

[startup+26.3015 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 24290
/proc/meminfo: memFree=1794296/2055920 swapFree=4181212/4192956
[pid=24289] ppid=24287 vsize=4720 CPUtime=26.29
/proc/24289/stat : 24289 (clasp) R 24287 24289 23594 0 -1 4194304 968 0 0 0 2629 0 0 0 25 0 1 0 106496774 4833280 952 1992294400 134512640 136057169 4294956144 18446744073709551615 134618141 0 0 4096 16386 0 0 0 17 1 0 0
/proc/24289/statm: 1180 952 182 377 0 800 0
Current children cumulated CPU time (s) 26.29
Current children cumulated vsize (KiB) 4720

[startup+26.4055 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 24290
/proc/meminfo: memFree=1794296/2055920 swapFree=4181212/4192956
[pid=24289] ppid=24287 vsize=4720 CPUtime=26.39
/proc/24289/stat : 24289 (clasp) R 24287 24289 23594 0 -1 4194304 969 0 0 0 2639 0 0 0 25 0 1 0 106496774 4833280 953 1992294400 134512640 136057169 4294956144 18446744073709551615 134618307 0 0 4096 16386 0 0 0 17 1 0 0
/proc/24289/statm: 1180 953 182 377 0 800 0
Current children cumulated CPU time (s) 26.39
Current children cumulated vsize (KiB) 4720

Child status: 20
Real time (s): 26.4612
CPU time (s): 26.455
CPU user time (s): 26.447
CPU system time (s): 0.007998
CPU usage (%): 99.9766
Max. virtual memory (cumulated for all children) (KiB): 4720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.447
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 974
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= 48

runsolver used 0.018997 second user time and 0.06299 second system time

The end

Launcher Data 

Begin job on node51 at 2009-04-27 00:24:53
IDJOB=1733049
IDBENCH=71133
IDSOLVER=508
FILE ID=node51/1733049-1240784692
PBS_JOBID= 9187222
Free space on /tmp= 66384 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT09/CRAFTED/ramseycube/Q32inK09.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-1733049-1240784692/watcher-1733049-1240784692 -o /tmp/evaluation-result-1733049-1240784692/solver-1733049-1240784692 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/clasp --file=HOME/instance-1733049-1240784692.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= 58cbf73dc7f1fd4bb325152069db03fb
RANDOM SEED=1886521786

node51.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	: 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		: 3000.214
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:       1798176 kB
Buffers:         32944 kB
Cached:         150032 kB
SwapCached:       5928 kB
Active:          41044 kB
Inactive:       150448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1798176 kB
SwapTotal:     4192956 kB
SwapFree:      4181212 kB
Dirty:            2116 kB
Writeback:           0 kB
Mapped:          13740 kB
Slab:            52220 kB
Committed_AS:   304988 kB
PageTables:       1392 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= 66384 MiB
End job on node51 at 2009-04-27 00:25:19