Trace number 338276

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 15.5386 15.5453

General information on the benchmark

Namecrafted/Difficult/contest05/QG/
QG6-gensys-icl006.sat05-2718.reshuffled-07.cnf
MD5SUM925ba4262948082ac4209468fd4bc8ae
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark107.544
Satisfiable
(Un)Satisfiability was proved
Number of variables1321
Number of clauses7617
Sum of the clauses size63333
Maximum clause length16
Minimum clause length1
Number of clauses of size 133
Number of clauses of size 2290
Number of clauses of size 31224
Number of clauses of size 4162
Number of clauses of size 5918
Number of clauses of size over 54990

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/node23/watcher-338276-1173683278 -o ROOT/results/node23/solver-338276-1173683278 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/338276-1173683278/mmisat /tmp/evaluation/338276-1173683278/instance-338276-1173683278.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: 1.00 1.00 1.00 3/77 10822
/proc/meminfo: memFree=1813464/2055920 swapFree=4140896/4192956
[pid=10822] ppid=10820 vsize=1308 CPUtime=0
/proc/10822/stat : 10822 (mmisat) R 10820 10822 10431 0 -1 4194304 175 0 0 0 0 0 0 0 18 0 1 0 94296121 1339392 158 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/10822/statm: 327 158 81 214 0 109 0

[startup+0.100867 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 10822
/proc/meminfo: memFree=1813464/2055920 swapFree=4140896/4192956
[pid=10822] ppid=10820 vsize=1968 CPUtime=0.09
/proc/10822/stat : 10822 (mmisat) R 10820 10822 10431 0 -1 4194304 351 0 0 0 9 0 0 0 18 0 1 0 94296121 2015232 334 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/10822/statm: 492 334 81 214 0 274 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1968

[startup+0.201887 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 10822
/proc/meminfo: memFree=1813464/2055920 swapFree=4140896/4192956
[pid=10822] ppid=10820 vsize=2364 CPUtime=0.19
/proc/10822/stat : 10822 (mmisat) R 10820 10822 10431 0 -1 4194304 449 0 0 0 19 0 0 0 18 0 1 0 94296121 2420736 432 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/10822/statm: 591 432 81 214 0 373 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 2364

[startup+0.301906 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 10822
/proc/meminfo: memFree=1813464/2055920 swapFree=4140896/4192956
[pid=10822] ppid=10820 vsize=2628 CPUtime=0.29
/proc/10822/stat : 10822 (mmisat) R 10820 10822 10431 0 -1 4194304 523 0 0 0 29 0 0 0 19 0 1 0 94296121 2691072 506 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/10822/statm: 657 506 81 214 0 439 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2628

[startup+0.701983 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 10822
/proc/meminfo: memFree=1813464/2055920 swapFree=4140896/4192956
[pid=10822] ppid=10820 vsize=3552 CPUtime=0.69
/proc/10822/stat : 10822 (mmisat) R 10820 10822 10431 0 -1 4194304 748 0 0 0 69 0 0 0 23 0 1 0 94296121 3637248 731 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/10822/statm: 888 731 81 214 0 670 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3552

[startup+1.50114 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 10823
/proc/meminfo: memFree=1810128/2055920 swapFree=4140896/4192956
[pid=10822] ppid=10820 vsize=4740 CPUtime=1.49
/proc/10822/stat : 10822 (mmisat) R 10820 10822 10431 0 -1 4194304 1048 0 0 0 149 0 0 0 25 0 1 0 94296121 4853760 1031 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517712 0 0 4096 0 0 0 0 17 1 0 0
/proc/10822/statm: 1185 1031 81 214 0 967 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4740

[startup+3.10145 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 10823
/proc/meminfo: memFree=1808656/2055920 swapFree=4140896/4192956
[pid=10822] ppid=10820 vsize=6324 CPUtime=3.09
/proc/10822/stat : 10822 (mmisat) R 10820 10822 10431 0 -1 4194304 1459 0 0 0 309 0 0 0 25 0 1 0 94296121 6475776 1442 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517205 0 0 4096 0 0 0 0 17 1 0 0
/proc/10822/statm: 1581 1442 81 214 0 1363 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6324

[startup+6.30107 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 10823
/proc/meminfo: memFree=1806224/2055920 swapFree=4140896/4192956
[pid=10822] ppid=10820 vsize=8304 CPUtime=6.29
/proc/10822/stat : 10822 (mmisat) R 10820 10822 10431 0 -1 4194304 1930 0 0 0 629 0 0 0 25 0 1 0 94296121 8503296 1913 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/10822/statm: 2076 1913 81 214 0 1858 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8304

[startup+12.7013 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 10823
/proc/meminfo: memFree=1804752/2055920 swapFree=4140896/4192956
[pid=10822] ppid=10820 vsize=9264 CPUtime=12.68
/proc/10822/stat : 10822 (mmisat) R 10820 10822 10431 0 -1 4194304 2183 0 0 0 1268 0 0 0 25 0 1 0 94296121 9486336 2166 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518819 0 0 4096 0 0 0 0 17 1 0 0
/proc/10822/statm: 2316 2166 84 214 0 2098 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 9264

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

[startup+12.8013 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 10823
/proc/meminfo: memFree=1804752/2055920 swapFree=4140896/4192956
[pid=10822] ppid=10820 vsize=9264 CPUtime=12.78
/proc/10822/stat : 10822 (mmisat) R 10820 10822 10431 0 -1 4194304 2183 0 0 0 1278 0 0 0 25 0 1 0 94296121 9486336 2166 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134523273 0 0 4096 0 0 0 0 17 1 0 0
/proc/10822/statm: 2316 2166 84 214 0 2098 0
Current children cumulated CPU time (s) 12.78
Current children cumulated vsize (KiB) 9264

[startup+14.4056 s]
/proc/loadavg: 1.00 1.00 1.00 3/78 10823
/proc/meminfo: memFree=1804752/2055920 swapFree=4140896/4192956
[pid=10822] ppid=10820 vsize=9264 CPUtime=14.38
/proc/10822/stat : 10822 (mmisat) R 10820 10822 10431 0 -1 4194304 2183 0 0 0 1438 0 0 0 25 0 1 0 94296121 9486336 2166 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518876 0 0 4096 0 0 0 0 17 1 0 0
/proc/10822/statm: 2316 2166 84 214 0 2098 0
Current children cumulated CPU time (s) 14.38
Current children cumulated vsize (KiB) 9264

[startup+15.2018 s]
/proc/loadavg: 1.00 1.00 1.00 3/78 10823
/proc/meminfo: memFree=1804752/2055920 swapFree=4140896/4192956
[pid=10822] ppid=10820 vsize=9264 CPUtime=15.18
/proc/10822/stat : 10822 (mmisat) R 10820 10822 10431 0 -1 4194304 2183 0 0 0 1518 0 0 0 25 0 1 0 94296121 9486336 2166 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518899 0 0 4096 0 0 0 0 17 1 0 0
/proc/10822/statm: 2316 2166 84 214 0 2098 0
Current children cumulated CPU time (s) 15.18
Current children cumulated vsize (KiB) 9264

[startup+15.4018 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 10823
/proc/meminfo: memFree=1789584/2055920 swapFree=4140896/4192956
[pid=10822] ppid=10820 vsize=24452 CPUtime=15.39
/proc/10822/stat : 10822 (mmisat) R 10820 10822 10431 0 -1 4194304 5972 0 0 0 1538 1 0 0 25 0 1 0 94296121 25038848 5955 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134997038 0 0 4096 0 0 0 0 17 1 0 0
/proc/10822/statm: 6113 5955 85 214 0 5895 0
Current children cumulated CPU time (s) 15.39
Current children cumulated vsize (KiB) 24452

[startup+15.5059 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 10823
/proc/meminfo: memFree=1789584/2055920 swapFree=4140896/4192956
[pid=10822] ppid=10820 vsize=16712 CPUtime=15.49
/proc/10822/stat : 10822 (mmisat) R 10820 10822 10431 0 -1 4195840 5981 0 0 0 1545 4 0 0 25 0 1 0 94296121 17113088 4043 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/10822/statm: 4178 4043 86 214 0 3960 0
Current children cumulated CPU time (s) 15.49
Current children cumulated vsize (KiB) 16712

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 15.5453
CPU time (s): 15.5386
CPU user time (s): 15.4567
CPU system time (s): 0.081987
CPU usage (%): 99.9571
Max. virtual memory (cumulated for all children) (KiB): 24452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.4566
system time used= 0.081987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5983
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= 46

runsolver used 0.023996 second user time and 0.040993 second system time

The end



Launcher Data (download as text)




Begin job on node23 on Mon Mar 12 07:07:58 UTC 2007

IDJOB= 338276
IDBENCH= 24719
IDSOLVER= 108
FILE ID= node23/338276-1173683278

PBS_JOBID= 4101479

Free space on /tmp= 66520 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Difficult/contest05/QG/QG6-gensys-icl006.sat05-2718.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/338276-1173683278/mmisat /tmp/evaluation/338276-1173683278/instance-338276-1173683278.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node23/watcher-338276-1173683278 -o ROOT/results/node23/solver-338276-1173683278 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/338276-1173683278/mmisat /tmp/evaluation/338276-1173683278/instance-338276-1173683278.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  925ba4262948082ac4209468fd4bc8ae

RANDOM SEED= 516918759

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node23.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:       1813872 kB
Buffers:         38492 kB
Cached:         137832 kB
SwapCached:      15572 kB
Active:         131428 kB
Inactive:        71992 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1813872 kB
SwapTotal:     4192956 kB
SwapFree:      4140896 kB
Dirty:            1420 kB
Writeback:           0 kB
Mapped:          29752 kB
Slab:            24228 kB
Committed_AS:   226432 kB
PageTables:       1732 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= 66504 MiB

End job on node23 on Mon Mar 12 07:08:14 UTC 2007