Trace number 310876

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 2007-02-08UNSAT 31.5862 31.5978

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S846304296-04-UNSAT.cnf
MD5SUM6c6574c6e53b7d1ef3d1cc6ac9e5dec3
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark9.15561
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)

31.53/31.59	c   
31.53/31.59	c =====================================================================================================
31.53/31.59	c Copyright (c) 2004 National ICT Australia Limited (NICTA) and applicable third parties.
31.53/31.59	c For details, see the Australian Public Licence B (OZPLB) V1-1, under which this software is licensed.
31.53/31.59	c The OZPLB text is embedded in the source code for this software.
31.53/31.59	c =====================================================================================================
31.53/31.59	c   
31.53/31.59	c solution of Dew_Satz_1e.c 
31.53/31.59	s UNSATISFIABLE
31.53/31.59	c Dew_Satz_1e /tmp/evaluation/310876-1172562504/instance-310876-1172562504.cnf 0 31.580  0.040 1780 1780 0 1780 1779 12490820 331896 2520631 247197 2304 4057 0 0 1295

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node65/watcher-310876-1172562504 -o ROOT/results/node65/solver-310876-1172562504 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310876-1172562504/dewSatz /tmp/evaluation/310876-1172562504/instance-310876-1172562504.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 1.00 0.99 0.99 3/64 24033
/proc/meminfo: memFree=1827720/2055920 swapFree=4172316/4192956
[pid=24033] ppid=24031 vsize=690016 CPUtime=0
/proc/24033/stat : 24033 (dewSatz) R 24031 24033 23197 0 -1 4194304 95 0 0 0 0 0 0 0 18 0 1 0 276207967 706576384 79 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134574791 0 0 4096 0 0 0 0 17 1 0 0
/proc/24033/statm: 172504 79 39 100 0 172401 0

[startup+0.106899 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 24033
/proc/meminfo: memFree=1827720/2055920 swapFree=4172316/4192956
[pid=24033] ppid=24031 vsize=690288 CPUtime=0.09
/proc/24033/stat : 24033 (dewSatz) R 24031 24033 23197 0 -1 4194304 10012 0 0 0 9 0 0 0 18 0 1 0 276207967 706854912 218 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134527461 0 0 4096 0 0 0 0 17 1 0 0
/proc/24033/statm: 172572 218 43 100 0 172469 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 690288

[startup+0.514967 s]
/proc/loadavg: 1.00 0.99 0.99 3/64 24033
/proc/meminfo: memFree=1827720/2055920 swapFree=4172316/4192956
[pid=24033] ppid=24031 vsize=690288 CPUtime=0.5
/proc/24033/stat : 24033 (dewSatz) R 24031 24033 23197 0 -1 4194304 10014 0 0 0 50 0 0 0 21 0 1 0 276207967 706854912 220 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134530289 0 0 4096 0 0 0 0 17 1 0 0
/proc/24033/statm: 172572 220 43 100 0 172469 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 690288

[startup+1.3351 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 24034
/proc/meminfo: memFree=1826816/2055920 swapFree=4172316/4192956
[pid=24033] ppid=24031 vsize=690288 CPUtime=1.32
/proc/24033/stat : 24033 (dewSatz) R 24031 24033 23197 0 -1 4194304 10014 0 0 0 132 0 0 0 25 0 1 0 276207967 706854912 220 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134530270 0 0 4096 0 0 0 0 17 1 0 0
/proc/24033/statm: 172572 220 43 100 0 172469 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 690288

[startup+2.97337 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 24034
/proc/meminfo: memFree=1826688/2055920 swapFree=4172316/4192956
[pid=24033] ppid=24031 vsize=690288 CPUtime=2.96
/proc/24033/stat : 24033 (dewSatz) R 24031 24033 23197 0 -1 4194304 10014 0 0 0 296 0 0 0 25 0 1 0 276207967 706854912 220 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134535189 0 0 4096 0 0 0 0 17 1 0 0
/proc/24033/statm: 172572 220 43 100 0 172469 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 690288

[startup+6.24991 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 24034
/proc/meminfo: memFree=1826560/2055920 swapFree=4172316/4192956
[pid=24033] ppid=24031 vsize=690288 CPUtime=6.23
/proc/24033/stat : 24033 (dewSatz) R 24031 24033 23197 0 -1 4194304 10016 0 0 0 623 0 0 0 25 0 1 0 276207967 706854912 222 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134532468 0 0 4096 0 0 0 0 17 1 0 0
/proc/24033/statm: 172572 222 43 100 0 172469 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 690288

[startup+12.706 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 24034
/proc/meminfo: memFree=1826496/2055920 swapFree=4172316/4192956
[pid=24033] ppid=24031 vsize=690288 CPUtime=12.69
/proc/24033/stat : 24033 (dewSatz) R 24031 24033 23197 0 -1 4194304 10016 0 0 0 1269 0 0 0 25 0 1 0 276207967 706854912 222 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134526580 0 0 4096 0 0 0 0 17 1 0 0
/proc/24033/statm: 172572 222 43 100 0 172469 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 690288

[startup+25.5061 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 24034
/proc/meminfo: memFree=1826496/2055920 swapFree=4172316/4192956
[pid=24033] ppid=24031 vsize=690288 CPUtime=25.48
/proc/24033/stat : 24033 (dewSatz) R 24031 24033 23197 0 -1 4194304 10017 0 0 0 2548 0 0 0 25 0 1 0 276207967 706854912 223 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134531650 0 0 4096 0 0 0 0 17 1 0 0
/proc/24033/statm: 172572 223 43 100 0 172469 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 690288

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

[startup+26.2252 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 24034
/proc/meminfo: memFree=1826496/2055920 swapFree=4172316/4192956
[pid=24033] ppid=24031 vsize=690288 CPUtime=26.2
/proc/24033/stat : 24033 (dewSatz) R 24031 24033 23197 0 -1 4194304 10017 0 0 0 2620 0 0 0 25 0 1 0 276207967 706854912 223 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134532628 0 0 4096 0 0 0 0 17 1 0 0
/proc/24033/statm: 172572 223 43 100 0 172469 0
Current children cumulated CPU time (s) 26.2
Current children cumulated vsize (KiB) 690288

[startup+29.5047 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 24034
/proc/meminfo: memFree=1826496/2055920 swapFree=4172316/4192956
[pid=24033] ppid=24031 vsize=690288 CPUtime=29.48
/proc/24033/stat : 24033 (dewSatz) R 24031 24033 23197 0 -1 4194304 10017 0 0 0 2948 0 0 0 25 0 1 0 276207967 706854912 223 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134526771 0 0 4096 0 0 0 0 17 1 0 0
/proc/24033/statm: 172572 223 43 100 0 172469 0
Current children cumulated CPU time (s) 29.48
Current children cumulated vsize (KiB) 690288

[startup+30.3209 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 24034
/proc/meminfo: memFree=1826496/2055920 swapFree=4172316/4192956
[pid=24033] ppid=24031 vsize=690288 CPUtime=30.3
/proc/24033/stat : 24033 (dewSatz) R 24031 24033 23197 0 -1 4194304 10017 0 0 0 3030 0 0 0 25 0 1 0 276207967 706854912 223 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134531113 0 0 4096 0 0 0 0 17 1 0 0
/proc/24033/statm: 172572 223 43 100 0 172469 0
Current children cumulated CPU time (s) 30.3
Current children cumulated vsize (KiB) 690288

[startup+31.141 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 24034
/proc/meminfo: memFree=1826496/2055920 swapFree=4172316/4192956
[pid=24033] ppid=24031 vsize=690288 CPUtime=31.12
/proc/24033/stat : 24033 (dewSatz) R 24031 24033 23197 0 -1 4194304 10017 0 0 0 3112 0 0 0 25 0 1 0 276207967 706854912 223 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134530834 0 0 4096 0 0 0 0 17 1 0 0
/proc/24033/statm: 172572 223 43 100 0 172469 0
Current children cumulated CPU time (s) 31.12
Current children cumulated vsize (KiB) 690288

[startup+31.5491 s]
/proc/loadavg: 1.00 0.99 0.99 2/65 24034
/proc/meminfo: memFree=1826496/2055920 swapFree=4172316/4192956
[pid=24033] ppid=24031 vsize=690288 CPUtime=31.53
/proc/24033/stat : 24033 (dewSatz) R 24031 24033 23197 0 -1 4194304 10017 0 0 0 3153 0 0 0 25 0 1 0 276207967 706854912 223 18446744073709551615 134512640 134923568 4294956704 18446744073709551615 134536616 0 0 4096 0 0 0 0 17 1 0 0
/proc/24033/statm: 172572 223 43 100 0 172469 0
Current children cumulated CPU time (s) 31.53
Current children cumulated vsize (KiB) 690288

Child status: 20
Real time (s): 31.5978
CPU time (s): 31.5862
CPU user time (s): 31.5752
CPU system time (s): 0.010998
CPU usage (%): 99.9633
Max. virtual memory (cumulated for all children) (KiB): 690288

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 31.5752
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10032
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= 23

runsolver used 0.021996 second user time and 0.071989 second system time

The end

Launcher Data (download as text)

Begin job on node65 on Tue Feb 27 07:48:24 UTC 2007

IDJOB= 310876
IDBENCH= 20298
IDSOLVER= 119
FILE ID= node65/310876-1172562504

PBS_JOBID= 3971881

Free space on /tmp= 66560 MiB

SOLVER NAME= DEWSATZ 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S846304296-04-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310876-1172562504/dewSatz /tmp/evaluation/310876-1172562504/instance-310876-1172562504.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node65/watcher-310876-1172562504 -o ROOT/results/node65/solver-310876-1172562504 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310876-1172562504/dewSatz /tmp/evaluation/310876-1172562504/instance-310876-1172562504.cnf            

META MD5SUM SOLVER= 96edd87e369231aed4bad098c50e0080
MD5SUM BENCH=  6c6574c6e53b7d1ef3d1cc6ac9e5dec3

RANDOM SEED= 822771821

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node65.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		: 3000.259
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		: 3000.259
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:       1828128 kB
Buffers:         30000 kB
Cached:         138472 kB
SwapCached:      14924 kB
Active:          81488 kB
Inactive:       108648 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1828128 kB
SwapTotal:     4192956 kB
SwapFree:      4172316 kB
Dirty:             980 kB
Writeback:           0 kB
Mapped:          15396 kB
Slab:            23608 kB
Committed_AS:   653284 kB
PageTables:       1456 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= 66560 MiB

End job on node65 on Tue Feb 27 07:48:56 UTC 2007