Trace number 338192

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 18.2152 18.2213

General information on the benchmark

Namecrafted/Difficult/contest05/QG/
QG6-gensys-icl001.sat05-2695.reshuffled-07.cnf
MD5SUM178c0646166b92c20ce876c724294ca1
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark96.1414
Satisfiable
(Un)Satisfiability was proved
Number of variables1587
Number of clauses8013
Sum of the clauses size68223
Maximum clause length16
Minimum clause length1
Number of clauses of size 133
Number of clauses of size 2283
Number of clauses of size 31146
Number of clauses of size 4108
Number of clauses of size 5888
Number of clauses of size over 55555

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/node72/watcher-338192-1173681833 -o ROOT/results/node72/solver-338192-1173681833 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/338192-1173681833/mmisat /tmp/evaluation/338192-1173681833/instance-338192-1173681833.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: 0.99 0.99 0.99 3/77 22765
/proc/meminfo: memFree=1814704/2055920 swapFree=4147304/4192956
[pid=22765] ppid=22763 vsize=1176 CPUtime=0
/proc/22765/stat : 22765 (mmisat) R 22763 22765 22655 0 -1 4194304 173 0 0 0 0 0 0 0 18 0 1 0 388151102 1204224 156 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/22765/statm: 294 156 81 214 0 76 0

[startup+0.098995 s]
/proc/loadavg: 0.99 0.99 0.99 3/77 22765
/proc/meminfo: memFree=1814704/2055920 swapFree=4147304/4192956
[pid=22765] ppid=22763 vsize=2100 CPUtime=0.09
/proc/22765/stat : 22765 (mmisat) R 22763 22765 22655 0 -1 4194304 375 0 0 0 9 0 0 0 18 0 1 0 388151102 2150400 358 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/22765/statm: 525 358 81 214 0 307 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2100

[startup+0.101995 s]
/proc/loadavg: 0.99 0.99 0.99 3/77 22765
/proc/meminfo: memFree=1814704/2055920 swapFree=4147304/4192956
[pid=22765] ppid=22763 vsize=2100 CPUtime=0.1
/proc/22765/stat : 22765 (mmisat) R 22763 22765 22655 0 -1 4194304 378 0 0 0 10 0 0 0 18 0 1 0 388151102 2150400 361 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517732 0 0 4096 0 0 0 0 17 1 0 0
/proc/22765/statm: 525 361 81 214 0 307 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2100

[startup+0.302014 s]
/proc/loadavg: 0.99 0.99 0.99 3/77 22765
/proc/meminfo: memFree=1814704/2055920 swapFree=4147304/4192956
[pid=22765] ppid=22763 vsize=2892 CPUtime=0.29
/proc/22765/stat : 22765 (mmisat) R 22763 22765 22655 0 -1 4194304 571 0 0 0 29 0 0 0 19 0 1 0 388151102 2961408 554 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517712 0 0 4096 0 0 0 0 17 1 0 0
/proc/22765/statm: 723 554 81 214 0 505 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2892

[startup+0.70105 s]
/proc/loadavg: 0.99 0.99 0.99 3/77 22765
/proc/meminfo: memFree=1814704/2055920 swapFree=4147304/4192956
[pid=22765] ppid=22763 vsize=3816 CPUtime=0.69
/proc/22765/stat : 22765 (mmisat) R 22763 22765 22655 0 -1 4194304 813 0 0 0 69 0 0 0 22 0 1 0 388151102 3907584 796 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517196 0 0 4096 0 0 0 0 17 1 0 0
/proc/22765/statm: 954 796 81 214 0 736 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3816

[startup+1.50112 s]
/proc/loadavg: 0.99 0.99 0.99 2/78 22766
/proc/meminfo: memFree=1811176/2055920 swapFree=4147304/4192956
[pid=22765] ppid=22763 vsize=5136 CPUtime=1.49
/proc/22765/stat : 22765 (mmisat) R 22763 22765 22655 0 -1 4194304 1149 0 0 0 149 0 0 0 25 0 1 0 388151102 5259264 1132 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/22765/statm: 1284 1132 81 214 0 1066 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5136

[startup+3.10127 s]
/proc/loadavg: 0.99 0.99 0.99 2/78 22766
/proc/meminfo: memFree=1809512/2055920 swapFree=4147304/4192956
[pid=22765] ppid=22763 vsize=6984 CPUtime=3.09
/proc/22765/stat : 22765 (mmisat) R 22763 22765 22655 0 -1 4194304 1616 0 0 0 309 0 0 0 25 0 1 0 388151102 7151616 1599 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/22765/statm: 1746 1599 81 214 0 1528 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6984

[startup+6.30156 s]
/proc/loadavg: 0.99 0.99 0.99 2/78 22766
/proc/meminfo: memFree=1806504/2055920 swapFree=4147304/4192956
[pid=22765] ppid=22763 vsize=9360 CPUtime=6.29
/proc/22765/stat : 22765 (mmisat) R 22763 22765 22655 0 -1 4194304 2215 0 0 0 629 0 0 0 25 0 1 0 388151102 9584640 2198 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/22765/statm: 2340 2198 81 214 0 2122 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 9360

[startup+12.7011 s]
/proc/loadavg: 0.99 0.99 0.99 2/78 22766
/proc/meminfo: memFree=1804072/2055920 swapFree=4147304/4192956
[pid=22765] ppid=22763 vsize=11244 CPUtime=12.69
/proc/22765/stat : 22765 (mmisat) R 22763 22765 22655 0 -1 4194304 2666 0 0 0 1268 1 0 0 25 0 1 0 388151102 11513856 2649 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134523273 0 0 4096 0 0 0 0 17 1 0 0
/proc/22765/statm: 2811 2649 84 214 0 2593 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 11244

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

[startup+15.9014 s]
/proc/loadavg: 0.99 0.99 0.99 2/78 22766
/proc/meminfo: memFree=1804072/2055920 swapFree=4147304/4192956
[pid=22765] ppid=22763 vsize=11244 CPUtime=15.89
/proc/22765/stat : 22765 (mmisat) R 22763 22765 22655 0 -1 4194304 2666 0 0 0 1588 1 0 0 25 0 1 0 388151102 11513856 2649 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518899 0 0 4096 0 0 0 0 17 1 0 0
/proc/22765/statm: 2811 2649 84 214 0 2593 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 11244

[startup+17.5016 s]
/proc/loadavg: 0.99 0.99 0.99 2/78 22766
/proc/meminfo: memFree=1804072/2055920 swapFree=4147304/4192956
[pid=22765] ppid=22763 vsize=11244 CPUtime=17.49
/proc/22765/stat : 22765 (mmisat) R 22763 22765 22655 0 -1 4194304 2666 0 0 0 1748 1 0 0 25 0 1 0 388151102 11513856 2649 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134523222 0 0 4096 0 0 0 0 17 1 0 0
/proc/22765/statm: 2811 2649 84 214 0 2593 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 11244

[startup+17.9016 s]
/proc/loadavg: 0.99 0.99 0.99 2/78 22766
/proc/meminfo: memFree=1804072/2055920 swapFree=4147304/4192956
[pid=22765] ppid=22763 vsize=11244 CPUtime=17.89
/proc/22765/stat : 22765 (mmisat) R 22763 22765 22655 0 -1 4194304 2666 0 0 0 1788 1 0 0 25 0 1 0 388151102 11513856 2649 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134520272 0 0 4096 0 0 0 0 17 1 0 0
/proc/22765/statm: 2811 2649 84 214 0 2593 0
Current children cumulated CPU time (s) 17.89
Current children cumulated vsize (KiB) 11244

[startup+18.1016 s]
/proc/loadavg: 0.99 0.99 0.99 2/78 22766
/proc/meminfo: memFree=1804072/2055920 swapFree=4147304/4192956
[pid=22765] ppid=22763 vsize=30128 CPUtime=18.09
/proc/22765/stat : 22765 (mmisat) R 22763 22765 22655 0 -1 4194304 7407 0 0 0 1806 3 0 0 25 0 1 0 388151102 30851072 7390 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134548515 0 0 4096 0 0 0 0 17 1 0 0
/proc/22765/statm: 7532 7390 86 214 0 7314 0
Current children cumulated CPU time (s) 18.09
Current children cumulated vsize (KiB) 30128

[startup+18.2017 s]
/proc/loadavg: 0.99 0.99 0.99 2/78 22766
/proc/meminfo: memFree=1804072/2055920 swapFree=4147304/4192956
[pid=22765] ppid=22763 vsize=20528 CPUtime=18.19
/proc/22765/stat : 22765 (mmisat) R 22763 22765 22655 0 -1 4195840 7410 0 0 0 1810 9 0 0 25 0 1 0 388151102 21020672 4997 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/22765/statm: 5132 4997 86 214 0 4914 0
Current children cumulated CPU time (s) 18.19
Current children cumulated vsize (KiB) 20528

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 18.2213
CPU time (s): 18.2152
CPU user time (s): 18.1022
CPU system time (s): 0.112982
CPU usage (%): 99.9669
Max. virtual memory (cumulated for all children) (KiB): 30128

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.1022
system time used= 0.112982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7412
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= 26

runsolver used 0.020996 second user time and 0.052991 second system time

The end



Launcher Data (download as text)




Begin job on node72 on Mon Mar 12 06:43:53 UTC 2007

IDJOB= 338192
IDBENCH= 24717
IDSOLVER= 108
FILE ID= node72/338192-1173681833

PBS_JOBID= 4101732

Free space on /tmp= 66083 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Difficult/contest05/QG/QG6-gensys-icl001.sat05-2695.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/338192-1173681833/mmisat /tmp/evaluation/338192-1173681833/instance-338192-1173681833.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node72/watcher-338192-1173681833 -o ROOT/results/node72/solver-338192-1173681833 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/338192-1173681833/mmisat /tmp/evaluation/338192-1173681833/instance-338192-1173681833.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  178c0646166b92c20ce876c724294ca1

RANDOM SEED= 912461232

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node72.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		: 3000.236
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		: 3000.236
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:       1815112 kB
Buffers:         38352 kB
Cached:         139352 kB
SwapCached:      14124 kB
Active:         105016 kB
Inactive:        96828 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1815112 kB
SwapTotal:     4192956 kB
SwapFree:      4147304 kB
Dirty:            1456 kB
Writeback:           0 kB
Mapped:          30548 kB
Slab:            24640 kB
Committed_AS: 10527332 kB
PageTables:       1680 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= 66064 MiB

End job on node72 on Mon Mar 12 06:44:11 UTC 2007