Trace number 301230

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
Mmisat 2007-02-08Signal 31.5882 31.6014

General information on the benchmark

Namerandom/LargeSize/5SAT/v600/
unif-k5-r20-v600-c12000-S388731928-13.cnf
MD5SUM9e5327c2d133c79d44cfc4c3420f84f2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.23366
Satisfiable
(Un)Satisfiability was proved
Number of variables600
Number of clauses12000
Sum of the clauses size60000
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 512000
Number of clauses of size over 50

Solver Data (download as text)



Verifier Data (download as text)




ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer: 



Watcher Data (download as text)




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

command line: runsolver --timestamp -w ROOT/results/node6/watcher-301230-1171959048 -o ROOT/results/node6/solver-301230-1171959048 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/301230-1171959048/mmisat /tmp/evaluation/301230-1171959048/instance-301230-1171959048.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: 0.92 0.98 0.99 3/77 29926
/proc/meminfo: memFree=1320312/2055924 swapFree=4192812/4192956
[pid=29926] ppid=29924 vsize=1176 CPUtime=0
/proc/29926/stat : 29926 (mmisat) R 29924 29926 29623 0 -1 4194304 149 0 0 0 0 0 0 0 18 0 1 0 215859482 1204224 132 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/29926/statm: 294 132 81 214 0 76 0

[startup+0.106731 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 29926
/proc/meminfo: memFree=1320312/2055924 swapFree=4192812/4192956
[pid=29926] ppid=29924 vsize=1704 CPUtime=0.1
/proc/29926/stat : 29926 (mmisat) R 29924 29926 29623 0 -1 4194304 278 0 0 0 10 0 0 0 18 0 1 0 215859482 1744896 261 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 135014089 0 0 4096 0 0 0 0 17 1 0 0
/proc/29926/statm: 426 261 81 214 0 208 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1704

[startup+0.514812 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 29926
/proc/meminfo: memFree=1320312/2055924 swapFree=4192812/4192956
[pid=29926] ppid=29924 vsize=2500 CPUtime=0.51
/proc/29926/stat : 29926 (mmisat) R 29924 29926 29623 0 -1 4194304 483 0 0 0 51 0 0 0 21 0 1 0 215859482 2560000 466 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/29926/statm: 625 466 81 214 0 407 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2500

[startup+1.33497 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 29927
/proc/meminfo: memFree=1318000/2055924 swapFree=4192812/4192956
[pid=29926] ppid=29924 vsize=3424 CPUtime=1.32
/proc/29926/stat : 29926 (mmisat) R 29924 29926 29623 0 -1 4194304 712 0 0 0 132 0 0 0 25 0 1 0 215859482 3506176 695 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517196 0 0 4096 0 0 0 0 17 1 0 0
/proc/29926/statm: 856 695 81 214 0 638 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 3424

[startup+2.9713 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 29927
/proc/meminfo: memFree=1316976/2055924 swapFree=4192812/4192956
[pid=29926] ppid=29924 vsize=4612 CPUtime=2.96
/proc/29926/stat : 29926 (mmisat) R 29924 29926 29623 0 -1 4194304 1000 0 0 0 296 0 0 0 25 0 1 0 215859482 4722688 983 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/29926/statm: 1153 983 81 214 0 935 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 4612

[startup+6.25194 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 29927
/proc/meminfo: memFree=1315504/2055924 swapFree=4192812/4192956
[pid=29926] ppid=29924 vsize=5668 CPUtime=6.24
/proc/29926/stat : 29926 (mmisat) R 29924 29926 29623 0 -1 4194304 1267 0 0 0 624 0 0 0 25 0 1 0 215859482 5804032 1250 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/29926/statm: 1417 1250 81 214 0 1199 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 5668

[startup+12.7062 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 29927
/proc/meminfo: memFree=1314480/2055924 swapFree=4192812/4192956
[pid=29926] ppid=29924 vsize=6460 CPUtime=12.69
/proc/29926/stat : 29926 (mmisat) R 29924 29926 29623 0 -1 4194304 1483 0 0 0 1269 0 0 0 25 0 1 0 215859482 6615040 1466 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/29926/statm: 1615 1466 81 214 0 1397 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 6460

[startup+25.5117 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 29927
/proc/meminfo: memFree=1313584/2055924 swapFree=4192812/4192956
[pid=29926] ppid=29924 vsize=7384 CPUtime=25.49
/proc/29926/stat : 29926 (mmisat) R 29924 29926 29623 0 -1 4194304 1707 0 0 0 2549 0 0 0 25 0 1 0 215859482 7561216 1690 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/29926/statm: 1846 1690 81 214 0 1628 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 7384

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

[startup+26.2299 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 29927
/proc/meminfo: memFree=1313520/2055924 swapFree=4192812/4192956
[pid=29926] ppid=29924 vsize=7384 CPUtime=26.21
/proc/29926/stat : 29926 (mmisat) R 29924 29926 29623 0 -1 4194304 1716 0 0 0 2621 0 0 0 25 0 1 0 215859482 7561216 1699 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/29926/statm: 1846 1699 81 214 0 1628 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 7384

[startup+29.5065 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 29927
/proc/meminfo: memFree=1313392/2055924 swapFree=4192812/4192956
[pid=29926] ppid=29924 vsize=7516 CPUtime=29.48
/proc/29926/stat : 29926 (mmisat) R 29924 29926 29623 0 -1 4194304 1757 0 0 0 2948 0 0 0 25 0 1 0 215859482 7696384 1740 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/29926/statm: 1879 1740 81 214 0 1661 0
Current children cumulated CPU time (s) 29.48
Current children cumulated vsize (KiB) 7516

[startup+30.3267 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 29927
/proc/meminfo: memFree=1313392/2055924 swapFree=4192812/4192956
[pid=29926] ppid=29924 vsize=7648 CPUtime=30.3
/proc/29926/stat : 29926 (mmisat) R 29924 29926 29623 0 -1 4194304 1767 0 0 0 3030 0 0 0 25 0 1 0 215859482 7831552 1750 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/29926/statm: 1912 1750 81 214 0 1694 0
Current children cumulated CPU time (s) 30.3
Current children cumulated vsize (KiB) 7648

[startup+31.1469 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 29927
/proc/meminfo: memFree=1313328/2055924 swapFree=4192812/4192956
[pid=29926] ppid=29924 vsize=14288 CPUtime=31.12
/proc/29926/stat : 29926 (mmisat) R 29924 29926 29623 0 -1 4194304 3445 0 0 0 3111 1 0 0 25 0 1 0 215859482 14630912 3428 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134518346 0 0 4096 0 0 0 0 17 1 0 0
/proc/29926/statm: 3572 3428 85 214 0 3354 0
Current children cumulated CPU time (s) 31.12
Current children cumulated vsize (KiB) 14288

[startup+31.5549 s]
/proc/loadavg: 0.95 0.98 0.99 3/78 29927
/proc/meminfo: memFree=1302768/2055924 swapFree=4192812/4192956
[pid=29926] ppid=29924 vsize=14940 CPUtime=31.54
/proc/29926/stat : 29926 (mmisat) R 29924 29926 29623 0 -1 4195840 5241 0 0 0 3150 4 0 0 25 0 1 0 215859482 15298560 3598 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134513353 0 0 4096 0 0 0 0 17 1 0 0
/proc/29926/statm: 3735 3598 91 214 0 3517 0
Current children cumulated CPU time (s) 31.54
Current children cumulated vsize (KiB) 14940

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 31.6014
CPU time (s): 31.5882
CPU user time (s): 31.5032
CPU system time (s): 0.084987
CPU usage (%): 99.9582
Max. virtual memory (cumulated for all children) (KiB): 14940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 31.5032
system time used= 0.084987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5250
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= 6
involuntary context switches= 40

runsolver used 0.038994 second user time and 0.077988 second system time

The end



Launcher Data (download as text)




Begin job on node6 on Tue Feb 20 08:10:48 UTC 2007

IDJOB= 301230
IDBENCH= 20054
IDSOLVER= 108
FILE ID= node6/301230-1171959048

PBS_JOBID= 3849013

Free space on /tmp= 66551 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/LargeSize/5SAT/v600/unif-k5-r20-v600-c12000-S388731928-13.cnf
COMMAND LINE= /tmp/evaluation/301230-1171959048/mmisat /tmp/evaluation/301230-1171959048/instance-301230-1171959048.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-301230-1171959048 -o ROOT/results/node6/solver-301230-1171959048 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/301230-1171959048/mmisat /tmp/evaluation/301230-1171959048/instance-301230-1171959048.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  9e5327c2d133c79d44cfc4c3420f84f2

RANDOM SEED= 258441091

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node6.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		: 3000.277
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		: 3000.277
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:      2055924 kB
MemFree:       1320784 kB
Buffers:         70808 kB
Cached:         529972 kB
SwapCached:          0 kB
Active:         345144 kB
Inactive:       311952 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1320784 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1368 kB
Writeback:           0 kB
Mapped:          75160 kB
Slab:            63748 kB
Committed_AS:   802796 kB
PageTables:       1744 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= 66537 MiB

End job on node6 on Tue Feb 20 08:11:19 UTC 2007