Trace number 428070

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
DEWSATZ 2007-04-26 (fixed)UNSAT 51.1472 51.1694

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1230630010-06-UNSAT.cnf
MD5SUMf1d2cd08ac7f8096a38662a7d7275db8
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark17.0164
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

51.07/51.16	c   
51.07/51.16	c =====================================================================================================
51.07/51.16	c Copyright (c) 2004 National ICT Australia Limited (NICTA) and applicable third parties.
51.07/51.16	c For details, see the Australian Public Licence B (OZPLB) V1-1, under which this software is licensed.
51.07/51.16	c The OZPLB text is embedded in the source code for this software.
51.07/51.16	c =====================================================================================================
51.07/51.16	c   
51.07/51.16	c solution of dewSatz.c 
51.07/51.16	s UNSATISFIABLE
51.07/51.16	c dewSatz /tmp/evaluation/428070-1177700954/instance-428070-1177700954.cnf 0 51.130  0.030 2899 2899 0 2899 2898 20217725 531143 4090384 396632 2094 4068 0 0 1295

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node48/watcher-428070-1177700954 -o ROOT/results/node48/solver-428070-1177700954 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/428070-1177700954/dewSatz_fixed /tmp/evaluation/428070-1177700954/instance-428070-1177700954.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: 0.96 0.97 0.99 3/64 26581
/proc/meminfo: memFree=1644752/2055920 swapFree=4183896/4192956
[pid=26581] ppid=26579 vsize=690016 CPUtime=0
/proc/26581/stat : 26581 (dewSatz_fixed) R 26579 26581 25360 0 -1 4194304 94 0 0 0 0 0 0 0 18 0 1 0 124940720 706576384 79 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134574795 0 0 4096 0 0 0 0 17 1 0 0
/proc/26581/statm: 172504 79 39 100 0 172401 0

[startup+0.099546 s]
/proc/loadavg: 0.96 0.97 0.99 3/64 26581
/proc/meminfo: memFree=1644752/2055920 swapFree=4183896/4192956
[pid=26581] ppid=26579 vsize=690288 CPUtime=0.09
/proc/26581/stat : 26581 (dewSatz_fixed) R 26579 26581 25360 0 -1 4194304 10002 0 0 0 8 1 0 0 18 0 1 0 124940720 706854912 211 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134532328 0 0 4096 0 0 0 0 17 1 0 0
/proc/26581/statm: 172572 211 43 100 0 172469 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 690288

[startup+0.101545 s]
/proc/loadavg: 0.96 0.97 0.99 3/64 26581
/proc/meminfo: memFree=1644752/2055920 swapFree=4183896/4192956
[pid=26581] ppid=26579 vsize=690288 CPUtime=0.09
/proc/26581/stat : 26581 (dewSatz_fixed) R 26579 26581 25360 0 -1 4194304 10002 0 0 0 8 1 0 0 18 0 1 0 124940720 706854912 211 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134533323 0 0 4096 0 0 0 0 17 1 0 0
/proc/26581/statm: 172572 211 43 100 0 172469 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 690288

[startup+0.301564 s]
/proc/loadavg: 0.96 0.97 0.99 3/64 26581
/proc/meminfo: memFree=1644752/2055920 swapFree=4183896/4192956
[pid=26581] ppid=26579 vsize=690288 CPUtime=0.29
/proc/26581/stat : 26581 (dewSatz_fixed) R 26579 26581 25360 0 -1 4194304 10006 0 0 0 28 1 0 0 19 0 1 0 124940720 706854912 215 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134531985 0 0 4096 0 0 0 0 17 1 0 0
/proc/26581/statm: 172572 215 43 100 0 172469 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 690288

[startup+0.7016 s]
/proc/loadavg: 0.96 0.97 0.99 3/64 26581
/proc/meminfo: memFree=1644752/2055920 swapFree=4183896/4192956
[pid=26581] ppid=26579 vsize=690288 CPUtime=0.69
/proc/26581/stat : 26581 (dewSatz_fixed) R 26579 26581 25360 0 -1 4194304 10006 0 0 0 68 1 0 0 22 0 1 0 124940720 706854912 215 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134530860 0 0 4096 0 0 0 0 17 1 0 0
/proc/26581/statm: 172572 215 43 100 0 172469 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 690288

[startup+1.50167 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 26582
/proc/meminfo: memFree=1643784/2055920 swapFree=4183896/4192956
[pid=26581] ppid=26579 vsize=690288 CPUtime=1.49
/proc/26581/stat : 26581 (dewSatz_fixed) R 26579 26581 25360 0 -1 4194304 10007 0 0 0 148 1 0 0 25 0 1 0 124940720 706854912 216 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134531936 0 0 4096 0 0 0 0 17 1 0 0
/proc/26581/statm: 172572 216 43 100 0 172469 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 690288

[startup+3.10182 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 26582
/proc/meminfo: memFree=1643656/2055920 swapFree=4183896/4192956
[pid=26581] ppid=26579 vsize=690288 CPUtime=3.09
/proc/26581/stat : 26581 (dewSatz_fixed) R 26579 26581 25360 0 -1 4194304 10007 0 0 0 308 1 0 0 25 0 1 0 124940720 706854912 216 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134532582 0 0 4096 0 0 0 0 17 1 0 0
/proc/26581/statm: 172572 216 43 100 0 172469 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 690288

[startup+6.30112 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 26582
/proc/meminfo: memFree=1643656/2055920 swapFree=4183896/4192956
[pid=26581] ppid=26579 vsize=690288 CPUtime=6.29
/proc/26581/stat : 26581 (dewSatz_fixed) R 26579 26581 25360 0 -1 4194304 10008 0 0 0 628 1 0 0 25 0 1 0 124940720 706854912 217 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134527148 0 0 4096 0 0 0 0 17 1 0 0
/proc/26581/statm: 172572 217 43 100 0 172469 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 690288

[startup+12.7017 s]
/proc/loadavg: 0.96 0.97 0.99 2/65 26584
/proc/meminfo: memFree=1643544/2055920 swapFree=4183896/4192956
[pid=26581] ppid=26579 vsize=690288 CPUtime=12.69
/proc/26581/stat : 26581 (dewSatz_fixed) R 26579 26581 25360 0 -1 4194304 10009 0 0 0 1268 1 0 0 25 0 1 0 124940720 706854912 218 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134531646 0 0 4096 0 0 0 0 17 0 0 0
/proc/26581/statm: 172572 218 43 100 0 172469 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 690288

[startup+25.5019 s]
/proc/loadavg: 0.97 0.97 0.99 2/65 26584
/proc/meminfo: memFree=1643544/2055920 swapFree=4183896/4192956
[pid=26581] ppid=26579 vsize=690288 CPUtime=25.48
/proc/26581/stat : 26581 (dewSatz_fixed) R 26579 26581 25360 0 -1 4194304 10009 0 0 0 2547 1 0 0 25 0 1 0 124940720 706854912 218 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134532602 0 0 4096 0 0 0 0 17 1 0 0
/proc/26581/statm: 172572 218 43 100 0 172469 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 690288

[startup+51.1013 s]
/proc/loadavg: 0.98 0.97 0.99 2/65 26584
/proc/meminfo: memFree=1643544/2055920 swapFree=4183896/4192956
[pid=26581] ppid=26579 vsize=690288 CPUtime=51.07
/proc/26581/stat : 26581 (dewSatz_fixed) R 26579 26581 25360 0 -1 4194304 10010 0 0 0 5106 1 0 0 25 0 1 0 124940720 706854912 219 18446744073709551615 134512640 134923568 4294956656 18446744073709551615 134526790 0 0 4096 0 0 0 0 17 1 0 0
/proc/26581/statm: 172572 219 43 100 0 172469 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 690288

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

Child status: 20
Real time (s): 51.1694
CPU time (s): 51.1472
CPU user time (s): 51.1312
CPU system time (s): 0.015997
CPU usage (%): 99.9566
Max. virtual memory (cumulated for all children) (KiB): 690288

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 51.1312
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10025
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= 127

runsolver used 0.052991 second user time and 0.093985 second system time

The end

Launcher Data (download as text)

Begin job on node48 on Fri Apr 27 19:09:14 UTC 2007

IDJOB= 428070
IDBENCH= 20300
IDSOLVER= 197
FILE ID= node48/428070-1177700954

PBS_JOBID= 4698665

Free space on /tmp= 66501 MiB

SOLVER NAME= DEWSATZ 2007-04-26 (fixed)
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1230630010-06-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/428070-1177700954/dewSatz_fixed /tmp/evaluation/428070-1177700954/instance-428070-1177700954.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node48/watcher-428070-1177700954 -o ROOT/results/node48/solver-428070-1177700954 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/428070-1177700954/dewSatz_fixed /tmp/evaluation/428070-1177700954/instance-428070-1177700954.cnf

META MD5SUM SOLVER= 7386eb54c3fac2d8e6ad9191fdd25a76
MD5SUM BENCH=  f1d2cd08ac7f8096a38662a7d7275db8

RANDOM SEED= 937250648

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node48.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		: 3000.238
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		: 3000.238
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:       1645160 kB
Buffers:         41128 kB
Cached:         315240 kB
SwapCached:       3760 kB
Active:         230096 kB
Inactive:       136824 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1645160 kB
SwapTotal:     4192956 kB
SwapFree:      4183896 kB
Dirty:            1512 kB
Writeback:           0 kB
Mapped:          15772 kB
Slab:            29908 kB
Committed_AS:  1266020 kB
PageTables:       1388 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= 66501 MiB

End job on node48 on Fri Apr 27 19:10:05 UTC 2007