Trace number 338066

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 28.2387 28.2485

General information on the benchmark

Namecrafted/Difficult/contest05/QG/
QG6-gensys-ukn003.sat05-2726.reshuffled-07.cnf
MD5SUM92c8b4fc23a7c22313979a2d9b3b5a58
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark224.011
Satisfiable
(Un)Satisfiability was proved
Number of variables1691
Number of clauses9177
Sum of the clauses size77698
Maximum clause length16
Minimum clause length1
Number of clauses of size 133
Number of clauses of size 2289
Number of clauses of size 31389
Number of clauses of size 4171
Number of clauses of size 5960
Number of clauses of size over 56335

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/node7/watcher-338066-1173679784 -o ROOT/results/node7/solver-338066-1173679784 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/338066-1173679784/mmisat /tmp/evaluation/338066-1173679784/instance-338066-1173679784.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 0.98 0.99 3/77 7562
/proc/meminfo: memFree=1621456/2055920 swapFree=4147416/4192956
[pid=7562] ppid=7560 vsize=1308 CPUtime=0
/proc/7562/stat : 7562 (mmisat) R 7560 7562 6468 0 -1 4194304 193 0 0 0 0 0 0 0 18 0 1 0 387933108 1339392 176 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/7562/statm: 327 176 81 214 0 109 0

[startup+0.0584329 s]
/proc/loadavg: 0.99 0.98 0.99 3/77 7562
/proc/meminfo: memFree=1621456/2055920 swapFree=4147416/4192956
[pid=7562] ppid=7560 vsize=1968 CPUtime=0.05
/proc/7562/stat : 7562 (mmisat) R 7560 7562 6468 0 -1 4194304 366 0 0 0 5 0 0 0 18 0 1 0 387933108 2015232 349 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/7562/statm: 492 349 81 214 0 274 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1968

[startup+0.102437 s]
/proc/loadavg: 0.99 0.98 0.99 3/77 7562
/proc/meminfo: memFree=1621456/2055920 swapFree=4147416/4192956
[pid=7562] ppid=7560 vsize=2364 CPUtime=0.1
/proc/7562/stat : 7562 (mmisat) R 7560 7562 6468 0 -1 4194304 452 0 0 0 10 0 0 0 18 0 1 0 387933108 2420736 435 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/7562/statm: 591 435 81 214 0 373 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2364

[startup+0.302458 s]
/proc/loadavg: 0.99 0.98 0.99 3/77 7562
/proc/meminfo: memFree=1621456/2055920 swapFree=4147416/4192956
[pid=7562] ppid=7560 vsize=3420 CPUtime=0.29
/proc/7562/stat : 7562 (mmisat) R 7560 7562 6468 0 -1 4194304 702 0 0 0 29 0 0 0 19 0 1 0 387933108 3502080 685 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/7562/statm: 855 685 81 214 0 637 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3420

[startup+0.7025 s]
/proc/loadavg: 0.99 0.98 0.99 3/77 7562
/proc/meminfo: memFree=1621456/2055920 swapFree=4147416/4192956
[pid=7562] ppid=7560 vsize=4608 CPUtime=0.69
/proc/7562/stat : 7562 (mmisat) R 7560 7562 6468 0 -1 4194304 1017 0 0 0 69 0 0 0 22 0 1 0 387933108 4718592 1000 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517207 0 0 4096 0 0 0 0 17 1 0 0
/proc/7562/statm: 1152 1000 81 214 0 934 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4608

[startup+1.50158 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 7563
/proc/meminfo: memFree=1617096/2055920 swapFree=4147416/4192956
[pid=7562] ppid=7560 vsize=6324 CPUtime=1.49
/proc/7562/stat : 7562 (mmisat) R 7560 7562 6468 0 -1 4194304 1438 0 0 0 149 0 0 0 25 0 1 0 387933108 6475776 1421 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/7562/statm: 1581 1421 81 214 0 1363 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6324

[startup+3.10175 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 7563
/proc/meminfo: memFree=1615048/2055920 swapFree=4147416/4192956
[pid=7562] ppid=7560 vsize=8568 CPUtime=3.09
/proc/7562/stat : 7562 (mmisat) R 7560 7562 6468 0 -1 4194304 2010 0 0 0 309 0 0 0 25 0 1 0 387933108 8773632 1993 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517712 0 0 4096 0 0 0 0 17 1 0 0
/proc/7562/statm: 2142 1993 81 214 0 1924 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 8568

[startup+6.30109 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 7563
/proc/meminfo: memFree=1611272/2055920 swapFree=4147416/4192956
[pid=7562] ppid=7560 vsize=11604 CPUtime=6.29
/proc/7562/stat : 7562 (mmisat) R 7560 7562 6468 0 -1 4194304 2768 0 0 0 628 1 0 0 25 0 1 0 387933108 11882496 2751 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517196 0 0 4096 0 0 0 0 17 1 0 0
/proc/7562/statm: 2901 2751 81 214 0 2683 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 11604

[startup+12.7018 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 7563
/proc/meminfo: memFree=1607496/2055920 swapFree=4147416/4192956
[pid=7562] ppid=7560 vsize=14904 CPUtime=12.68
/proc/7562/stat : 7562 (mmisat) R 7560 7562 6468 0 -1 4194304 3589 0 0 0 1267 1 0 0 25 0 1 0 387933108 15261696 3572 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/7562/statm: 3726 3572 81 214 0 3508 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 14904

[startup+25.5011 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 7563
/proc/meminfo: memFree=1605704/2055920 swapFree=4147416/4192956
[pid=7562] ppid=7560 vsize=16392 CPUtime=25.48
/proc/7562/stat : 7562 (mmisat) R 7560 7562 6468 0 -1 4194304 3969 0 0 0 2546 2 0 0 25 0 1 0 387933108 16785408 3952 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518786 0 0 4096 0 0 0 0 17 1 0 0
/proc/7562/statm: 4098 3952 84 214 0 3880 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 16392

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

[startup+27.1013 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 7563
/proc/meminfo: memFree=1605704/2055920 swapFree=4147416/4192956
[pid=7562] ppid=7560 vsize=16392 CPUtime=27.08
/proc/7562/stat : 7562 (mmisat) R 7560 7562 6468 0 -1 4194304 3969 0 0 0 2706 2 0 0 25 0 1 0 387933108 16785408 3952 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518960 0 0 4096 0 0 0 0 17 1 0 0
/proc/7562/statm: 4098 3952 84 214 0 3880 0
Current children cumulated CPU time (s) 27.08
Current children cumulated vsize (KiB) 16392

[startup+27.9014 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 7563
/proc/meminfo: memFree=1605704/2055920 swapFree=4147416/4192956
[pid=7562] ppid=7560 vsize=30260 CPUtime=27.88
/proc/7562/stat : 7562 (mmisat) R 7560 7562 6468 0 -1 4194304 7435 0 0 0 2785 3 0 0 25 0 1 0 387933108 30986240 7418 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134518886 0 0 4096 0 0 0 0 17 1 0 0
/proc/7562/statm: 7565 7418 85 214 0 7347 0
Current children cumulated CPU time (s) 27.88
Current children cumulated vsize (KiB) 30260

[startup+28.1014 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 7563
/proc/meminfo: memFree=1605704/2055920 swapFree=4147416/4192956
[pid=7562] ppid=7560 vsize=30364 CPUtime=28.08
/proc/7562/stat : 7562 (mmisat) R 7560 7562 6468 0 -1 4194304 11011 0 0 0 2804 4 0 0 25 0 1 0 387933108 31092736 7457 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134520203 0 0 4096 0 0 0 0 17 1 0 0
/proc/7562/statm: 7591 7457 86 214 0 7373 0
Current children cumulated CPU time (s) 28.08
Current children cumulated vsize (KiB) 30364

[startup+28.2014 s]
/proc/loadavg: 0.99 0.98 0.99 2/78 7563
/proc/meminfo: memFree=1605704/2055920 swapFree=4147416/4192956
[pid=7562] ppid=7560 vsize=30364 CPUtime=28.18
/proc/7562/stat : 7562 (mmisat) R 7560 7562 6468 0 -1 4195840 11014 0 0 0 2806 12 0 0 25 0 1 0 387933108 31092736 7457 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/7562/statm: 7591 7457 86 214 0 7373 0
Current children cumulated CPU time (s) 28.18
Current children cumulated vsize (KiB) 30364

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 28.2485
CPU time (s): 28.2387
CPU user time (s): 28.0677
CPU system time (s): 0.170974
CPU usage (%): 99.9654
Max. virtual memory (cumulated for all children) (KiB): 44516

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 28.0677
system time used= 0.170974
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11015
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= 53

runsolver used 0.036994 second user time and 0.070989 second system time

The end



Launcher Data (download as text)




Begin job on node7 on Mon Mar 12 06:09:44 UTC 2007

IDJOB= 338066
IDBENCH= 24714
IDSOLVER= 108
FILE ID= node7/338066-1173679784

PBS_JOBID= 4101475

Free space on /tmp= 66484 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Difficult/contest05/QG/QG6-gensys-ukn003.sat05-2726.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/338066-1173679784/mmisat /tmp/evaluation/338066-1173679784/instance-338066-1173679784.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node7/watcher-338066-1173679784 -o ROOT/results/node7/solver-338066-1173679784 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/338066-1173679784/mmisat /tmp/evaluation/338066-1173679784/instance-338066-1173679784.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  92c8b4fc23a7c22313979a2d9b3b5a58

RANDOM SEED= 425983319

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node7.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		: 3000.232
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		: 3000.232
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:       1621928 kB
Buffers:         41168 kB
Cached:         301332 kB
SwapCached:       8584 kB
Active:         214888 kB
Inactive:       150544 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1621928 kB
SwapTotal:     4192956 kB
SwapFree:      4147416 kB
Dirty:            1560 kB
Writeback:           0 kB
Mapped:          29892 kB
Slab:            54128 kB
Committed_AS:  1310584 kB
PageTables:       1764 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= 66456 MiB

End job on node7 on Mon Mar 12 06:10:12 UTC 2007