Trace number 320670

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 2007-02-08? (MO) 7.8918 8.00435

General information on the benchmark

Nameindustrial/narain/
clauses-6.cnf
MD5SUM61486826db531b2bec67f4c4c779f9ff
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark86.1749
Satisfiable
(Un)Satisfiability was proved
Number of variables683995
Number of clauses2623082
Sum of the clauses size6506810
Maximum clause length385
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 21990085
Number of clauses of size 3452561
Number of clauses of size 45943
Number of clauses of size 5154560
Number of clauses of size over 519932

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 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node59/watcher-320670-1173048911 -o ROOT/results/node59/solver-320670-1173048911 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/320670-1173048911/mmisat /tmp/evaluation/320670-1173048911/instance-320670-1173048911.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: 0.92 0.98 0.93 3/64 12994
/proc/meminfo: memFree=1072032/2055920 swapFree=4183756/4192956
[pid=12994] ppid=12992 vsize=2304 CPUtime=0
/proc/12994/stat : 12994 (mmisat) R 12992 12994 12511 0 -1 4194304 622 0 0 0 0 0 0 0 18 0 1 0 324847927 2359296 353 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/12994/statm: 576 361 81 214 0 358 0

[startup+0.0217879 s]
/proc/loadavg: 0.92 0.98 0.93 3/64 12994
/proc/meminfo: memFree=1072032/2055920 swapFree=4183756/4192956
[pid=12994] ppid=12992 vsize=6840 CPUtime=0.01
/proc/12994/stat : 12994 (mmisat) R 12992 12994 12511 0 -1 4194304 2913 0 0 0 0 1 0 0 18 0 1 0 324847927 7004160 1510 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/12994/statm: 1710 1519 81 214 0 1492 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 6840

[startup+0.101797 s]
/proc/loadavg: 0.92 0.98 0.93 3/64 12994
/proc/meminfo: memFree=1072032/2055920 swapFree=4183756/4192956
[pid=12994] ppid=12992 vsize=28764 CPUtime=0.09
/proc/12994/stat : 12994 (mmisat) R 12992 12994 12511 0 -1 4194304 13674 0 0 0 4 5 0 0 18 0 1 0 324847927 29454336 6979 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/12994/statm: 7191 6985 81 214 0 6973 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 28764

[startup+0.301816 s]
/proc/loadavg: 0.92 0.98 0.93 3/64 12994
/proc/meminfo: memFree=1072032/2055920 swapFree=4183756/4192956
[pid=12994] ppid=12992 vsize=82692 CPUtime=0.29
/proc/12994/stat : 12994 (mmisat) R 12992 12994 12511 0 -1 4194304 40797 0 0 0 14 15 0 0 19 0 1 0 324847927 84676608 20495 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/12994/statm: 20673 20502 81 214 0 20455 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 82692

[startup+0.70186 s]
/proc/loadavg: 0.92 0.98 0.93 3/64 12994
/proc/meminfo: memFree=1072032/2055920 swapFree=4183756/4192956
[pid=12994] ppid=12992 vsize=190548 CPUtime=0.69
/proc/12994/stat : 12994 (mmisat) R 12992 12994 12511 0 -1 4194304 94715 0 0 0 35 34 0 0 22 0 1 0 324847927 195121152 47448 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/12994/statm: 47637 47455 81 214 0 47419 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 190548

[startup+1.50195 s]
/proc/loadavg: 0.92 0.98 0.93 2/65 12995
/proc/meminfo: memFree=801368/2055920 swapFree=4183756/4192956
[pid=12994] ppid=12992 vsize=403740 CPUtime=1.49
/proc/12994/stat : 12994 (mmisat) R 12992 12994 12511 0 -1 4194304 201294 0 0 0 79 70 0 0 25 0 1 0 324847927 413429760 100729 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/12994/statm: 100935 100737 81 214 0 100717 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 403740

[startup+3.10114 s]
/proc/loadavg: 0.92 0.98 0.93 2/65 12995
/proc/meminfo: memFree=510360/2055920 swapFree=4183756/4192956
[pid=12994] ppid=12992 vsize=819672 CPUtime=3.08
/proc/12994/stat : 12994 (mmisat) R 12992 12994 12511 0 -1 4194304 409095 0 0 0 168 140 0 0 25 0 1 0 324847927 839344128 204707 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/12994/statm: 204918 204716 81 214 0 204700 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 819672

[startup+6.30249 s]
/proc/loadavg: 1.01 1.00 0.93 2/65 12995
/proc/meminfo: memFree=16344/2055920 swapFree=4183756/4192956
[pid=12994] ppid=12992 vsize=1620156 CPUtime=6.27
/proc/12994/stat : 12994 (mmisat) R 12992 12994 12511 0 -1 4194304 809480 0 0 0 350 277 0 0 25 0 1 0 324847927 1659039744 404877 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 0 0 0
/proc/12994/statm: 405039 404877 81 214 0 404821 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 1620156



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+7.70565 s]
/proc/loadavg: 1.01 1.00 0.93 4/65 12995
/proc/meminfo: memFree=16152/2055920 swapFree=4183760/4192956
[pid=12994] ppid=12992 vsize=1849728 CPUtime=7.59
/proc/12994/stat : 12994 (mmisat) R 12992 12994 12511 0 -1 4194304 924322 0 0 0 424 335 0 0 25 0 1 0 324847927 1894121472 462263 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/12994/statm: 462432 462271 81 214 0 462214 0
Current children cumulated CPU time (s) 7.59
Current children cumulated vsize (KiB) 1849728

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

[startup+7.80564 s]
/proc/loadavg: 1.01 1.00 0.93 4/65 12995
/proc/meminfo: memFree=16152/2055920 swapFree=4183760/4192956
[pid=12994] ppid=12992 vsize=0 CPUtime=7.69
/proc/12994/stat : 12994 (mmisat) R 12992 12994 12511 0 -1 4195332 924371 0 0 0 424 345 0 0 25 0 1 0 324847927 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/12994/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 7.69
Current children cumulated vsize (KiB) 0

[startup+8.00167 s]
/proc/loadavg: 1.01 1.00 0.93 4/65 12995
/proc/meminfo: memFree=16152/2055920 swapFree=4183760/4192956
[pid=12994] ppid=12992 vsize=0 CPUtime=7.88
/proc/12994/stat : 12994 (mmisat) R 12992 12994 12511 0 -1 4195332 924371 0 0 0 424 364 0 0 25 0 1 0 324847927 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/12994/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 7.88
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 8.00435
CPU time (s): 7.8918
CPU user time (s): 4.24135
CPU system time (s): 3.65045
CPU usage (%): 98.5939
Max. virtual memory (cumulated for all children) (KiB): 1849728

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.24136
system time used= 3.65044
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 924371
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= 86

runsolver used 0.007998 second user time and 0.031995 second system time

The end



Launcher Data (download as text)




Begin job on node59 on Sun Mar  4 22:55:12 UTC 2007

IDJOB= 320670
IDBENCH= 20509
IDSOLVER= 108
FILE ID= node59/320670-1173048911

PBS_JOBID= 4012504

Free space on /tmp= 66467 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/narain/clauses-6.cnf
COMMAND LINE= /tmp/evaluation/320670-1173048911/mmisat /tmp/evaluation/320670-1173048911/instance-320670-1173048911.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node59/watcher-320670-1173048911 -o ROOT/results/node59/solver-320670-1173048911 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/320670-1173048911/mmisat /tmp/evaluation/320670-1173048911/instance-320670-1173048911.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  61486826db531b2bec67f4c4c779f9ff

RANDOM SEED= 180191123

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node59.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		: 3000.225
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		: 3000.225
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:       1072504 kB
Buffers:         44184 kB
Cached:         845056 kB
SwapCached:       3124 kB
Active:         330844 kB
Inactive:       568000 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1072504 kB
SwapTotal:     4192956 kB
SwapFree:      4183756 kB
Dirty:           51276 kB
Writeback:           0 kB
Mapped:          15500 kB
Slab:            70568 kB
Committed_AS:   648752 kB
PageTables:       1472 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= 66467 MiB

End job on node59 on Sun Mar  4 22:55:22 UTC 2007