Trace number 320547

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) 8.26874 8.40091

General information on the benchmark

Nameindustrial/narain/
clauses-8.cnf
MD5SUM74bd745b1c68e4deddfa063e58b6b54d
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables1461771
Number of clauses5687554
Sum of the clauses size14147618
Maximum clause length601
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 24325673
Number of clauses of size 3961281
Number of clauses of size 411051
Number of clauses of size 5354960
Number of clauses of size over 534588

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/node4/watcher-320547-1173047696 -o ROOT/results/node4/solver-320547-1173047696 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/320547-1173047696/mmisat /tmp/evaluation/320547-1173047696/instance-320547-1173047696.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 0.97 0.99 3/77 4139
/proc/meminfo: memFree=1550056/2055920 swapFree=4191880/4192956
[pid=4139] ppid=4137 vsize=3188 CPUtime=0
/proc/4139/stat : 4139 (mmisat) R 4137 4139 3512 0 -1 4194304 646 0 0 0 0 0 0 0 18 0 1 0 324724721 3264512 629 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 135055921 0 0 4096 0 0 0 0 17 1 0 0
/proc/4139/statm: 797 629 173 214 0 579 0

[startup+0.0993329 s]
/proc/loadavg: 0.92 0.97 0.99 3/77 4139
/proc/meminfo: memFree=1550056/2055920 swapFree=4191880/4192956
[pid=4139] ppid=4137 vsize=27308 CPUtime=0.09
/proc/4139/stat : 4139 (mmisat) R 4137 4139 3512 0 -1 4194304 12747 0 0 0 4 5 0 0 18 0 1 0 324724721 27963392 6567 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/4139/statm: 6827 6572 81 214 0 6609 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 27308

[startup+0.101332 s]
/proc/loadavg: 0.92 0.97 0.99 3/77 4139
/proc/meminfo: memFree=1550056/2055920 swapFree=4191880/4192956
[pid=4139] ppid=4137 vsize=27844 CPUtime=0.09
/proc/4139/stat : 4139 (mmisat) R 4137 4139 3512 0 -1 4194304 12974 0 0 0 4 5 0 0 18 0 1 0 324724721 28512256 6793 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/4139/statm: 6961 6793 81 214 0 6743 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 27844

[startup+0.30135 s]
/proc/loadavg: 0.92 0.97 0.99 3/77 4139
/proc/meminfo: memFree=1550056/2055920 swapFree=4191880/4192956
[pid=4139] ppid=4137 vsize=78228 CPUtime=0.29
/proc/4139/stat : 4139 (mmisat) R 4137 4139 3512 0 -1 4194304 38311 0 0 0 16 13 0 0 19 0 1 0 324724721 80105472 19266 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/4139/statm: 19557 19273 81 214 0 19339 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 78228

[startup+0.701389 s]
/proc/loadavg: 0.92 0.97 0.99 3/77 4139
/proc/meminfo: memFree=1550056/2055920 swapFree=4191880/4192956
[pid=4139] ppid=4137 vsize=178996 CPUtime=0.69
/proc/4139/stat : 4139 (mmisat) R 4137 4139 3512 0 -1 4194304 88534 0 0 0 38 31 0 0 23 0 1 0 324724721 183291904 44565 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/4139/statm: 44749 44571 81 214 0 44531 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 178996

[startup+1.50147 s]
/proc/loadavg: 0.92 0.97 0.99 2/78 4140
/proc/meminfo: memFree=1292704/2055920 swapFree=4191880/4192956
[pid=4139] ppid=4137 vsize=379460 CPUtime=1.49
/proc/4139/stat : 4139 (mmisat) R 4137 4139 3512 0 -1 4194304 188791 0 0 0 80 69 0 0 25 0 1 0 324724721 388567040 94706 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134523164 0 0 4096 0 0 0 0 17 1 0 0
/proc/4139/statm: 94865 94706 171 214 0 94647 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 379460

[startup+3.10162 s]
/proc/loadavg: 0.92 0.97 0.99 2/78 4140
/proc/meminfo: memFree=1017376/2055920 swapFree=4191880/4192956
[pid=4139] ppid=4137 vsize=778244 CPUtime=3.09
/proc/4139/stat : 4139 (mmisat) R 4137 4139 3512 0 -1 4194304 388394 0 0 0 164 145 0 0 25 0 1 0 324724721 796921856 194346 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134522779 0 0 4096 0 0 0 0 17 1 0 0
/proc/4139/statm: 194561 194353 82 214 0 194343 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 778244

[startup+6.30193 s]
/proc/loadavg: 1.01 0.98 0.99 2/78 4140
/proc/meminfo: memFree=202528/2055920 swapFree=4191880/4192956
[pid=4139] ppid=4137 vsize=1570584 CPUtime=6.29
/proc/4139/stat : 4139 (mmisat) R 4137 4139 3512 0 -1 4194304 784315 0 0 0 336 293 0 0 25 0 1 0 324724721 1608278016 392482 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134523161 0 0 4096 0 0 0 0 17 1 0 0
/proc/4139/statm: 392646 392482 81 214 0 392428 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1570584



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+8.10112 s]
/proc/loadavg: 1.01 0.98 0.99 3/78 4140
/proc/meminfo: memFree=13472/2055920 swapFree=4153476/4192956
[pid=4139] ppid=4137 vsize=1857880 CPUtime=7.97
/proc/4139/stat : 4139 (mmisat) R 4137 4139 3512 0 -1 4194304 927970 0 0 0 419 378 0 0 25 0 1 0 324724721 1902469120 464313 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134523158 0 0 4096 0 0 0 0 17 1 0 0
/proc/4139/statm: 464470 464313 81 214 0 464252 0
Current children cumulated CPU time (s) 7.97
Current children cumulated vsize (KiB) 1857880

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

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

[startup+8.21011 s]
/proc/loadavg: 1.01 0.98 0.99 3/78 4140
/proc/meminfo: memFree=13472/2055920 swapFree=4153476/4192956
[pid=4139] ppid=4137 vsize=0 CPUtime=8.07
/proc/4139/stat : 4139 (mmisat) R 4137 4139 3512 0 -1 4195332 927970 0 0 0 419 388 0 0 25 0 1 0 324724721 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/4139/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 8.07
Current children cumulated vsize (KiB) 0

[startup+8.30112 s]
/proc/loadavg: 1.01 0.98 0.99 3/78 4140
/proc/meminfo: memFree=13472/2055920 swapFree=4153476/4192956
[pid=4139] ppid=4137 vsize=0 CPUtime=8.16
/proc/4139/stat : 4139 (mmisat) R 4137 4139 3512 0 -1 4195332 927970 0 0 0 419 397 0 0 25 0 1 0 324724721 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/4139/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 8.16
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 8.40091
CPU time (s): 8.26874
CPU user time (s): 4.19736
CPU system time (s): 4.07138
CPU usage (%): 98.4268
Max. virtual memory (cumulated for all children) (KiB): 1857880

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.19736
system time used= 4.07138
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 927970
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= 15
involuntary context switches= 213

runsolver used 0.011998 second user time and 0.046992 second system time

The end



Launcher Data (download as text)




Begin job on node4 on Sun Mar  4 22:34:59 UTC 2007

IDJOB= 320547
IDBENCH= 20506
IDSOLVER= 108
FILE ID= node4/320547-1173047696

PBS_JOBID= 4012265

Free space on /tmp= 66430 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/narain/clauses-8.cnf
COMMAND LINE= /tmp/evaluation/320547-1173047696/mmisat /tmp/evaluation/320547-1173047696/instance-320547-1173047696.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-320547-1173047696 -o ROOT/results/node4/solver-320547-1173047696 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/320547-1173047696/mmisat /tmp/evaluation/320547-1173047696/instance-320547-1173047696.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  74bd745b1c68e4deddfa063e58b6b54d

RANDOM SEED= 615695690

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.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		: 3000.231
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		: 3000.231
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:       1550528 kB
Buffers:         24224 kB
Cached:         353856 kB
SwapCached:        408 kB
Active:         181336 kB
Inactive:       255840 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1550528 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:          115328 kB
Writeback:           0 kB
Mapped:          69136 kB
Slab:            53752 kB
Committed_AS:  1222520 kB
PageTables:       1768 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= 66430 MiB

End job on node4 on Sun Mar  4 22:35:09 UTC 2007