Trace number 307954

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 10.7154 10.7191

General information on the benchmark

Namerandom/2+p/p0.7/v3500/
unif2p-p0.7-v3500-c9345-S1671384215-01-SAT.cnf
MD5SUMb44330819e18ebafb103a47668b9fb76
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.829873
Satisfiable
(Un)Satisfiability was proved
Number of variables3499
Number of clauses9344
Sum of the clauses size25229
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22803
Number of clauses of size 36541
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

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

command line: runsolver --timestamp -w ROOT/results/node18/watcher-307954-1172509912 -o ROOT/results/node18/solver-307954-1172509912 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/307954-1172509912/mmisat /tmp/evaluation/307954-1172509912/instance-307954-1172509912.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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 0.99 3/77 14696
/proc/meminfo: memFree=1762672/2055920 swapFree=4192812/4192956
[pid=14696] ppid=14694 vsize=1572 CPUtime=0
/proc/14696/stat : 14696 (mmisat) R 14694 14696 13626 0 -1 4194304 254 0 0 0 0 0 0 0 18 0 1 0 270945731 1609728 237 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/14696/statm: 393 238 81 214 0 175 0

[startup+0.106644 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 14696
/proc/meminfo: memFree=1762672/2055920 swapFree=4192812/4192956
[pid=14696] ppid=14694 vsize=4344 CPUtime=0.1
/proc/14696/stat : 14696 (mmisat) R 14694 14696 13626 0 -1 4194304 965 0 0 0 10 0 0 0 18 0 1 0 270945731 4448256 948 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/14696/statm: 1086 948 81 214 0 868 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 4344

[startup+0.514683 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 14696
/proc/meminfo: memFree=1762672/2055920 swapFree=4192812/4192956
[pid=14696] ppid=14694 vsize=8700 CPUtime=0.5
/proc/14696/stat : 14696 (mmisat) R 14694 14696 13626 0 -1 4194304 2040 0 0 0 50 0 0 0 22 0 1 0 270945731 8908800 2023 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/14696/statm: 2175 2023 81 214 0 1957 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 8700

[startup+1.33476 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 14697
/proc/meminfo: memFree=1751784/2055920 swapFree=4192812/4192956
[pid=14696] ppid=14694 vsize=12528 CPUtime=1.33
/proc/14696/stat : 14696 (mmisat) R 14694 14696 13626 0 -1 4194304 3011 0 0 0 132 1 0 0 25 0 1 0 270945731 12828672 2994 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134517732 0 0 4096 0 0 0 0 17 1 0 0
/proc/14696/statm: 3132 2994 81 214 0 2914 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 12528

[startup+2.97092 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 14697
/proc/meminfo: memFree=1747624/2055920 swapFree=4192812/4192956
[pid=14696] ppid=14694 vsize=17676 CPUtime=2.96
/proc/14696/stat : 14696 (mmisat) R 14694 14696 13626 0 -1 4194304 4292 0 0 0 295 1 0 0 25 0 1 0 270945731 18100224 4275 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/14696/statm: 4419 4275 81 214 0 4201 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 17676

[startup+6.25324 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 14697
/proc/meminfo: memFree=1740520/2055920 swapFree=4192812/4192956
[pid=14696] ppid=14694 vsize=23484 CPUtime=6.24
/proc/14696/stat : 14696 (mmisat) R 14694 14696 13626 0 -1 4194304 5744 0 0 0 622 2 0 0 25 0 1 0 270945731 24047616 5727 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/14696/statm: 5871 5727 81 214 0 5653 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 23484

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

[startup+6.55927 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 14697
/proc/meminfo: memFree=1740520/2055920 swapFree=4192812/4192956
[pid=14696] ppid=14694 vsize=23880 CPUtime=6.54
/proc/14696/stat : 14696 (mmisat) R 14694 14696 13626 0 -1 4194304 5833 0 0 0 652 2 0 0 25 0 1 0 270945731 24453120 5816 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134517712 0 0 4096 0 0 0 0 17 1 0 0
/proc/14696/statm: 5970 5816 81 214 0 5752 0
Current children cumulated CPU time (s) 6.54
Current children cumulated vsize (KiB) 23880

[startup+8.19943 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 14697
/proc/meminfo: memFree=1738024/2055920 swapFree=4192812/4192956
[pid=14696] ppid=14694 vsize=25596 CPUtime=8.18
/proc/14696/stat : 14696 (mmisat) R 14694 14696 13626 0 -1 4194304 6252 0 0 0 816 2 0 0 25 0 1 0 270945731 26210304 6235 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/14696/statm: 6399 6235 81 214 0 6181 0
Current children cumulated CPU time (s) 8.18
Current children cumulated vsize (KiB) 25596

[startup+9.83558 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 14697
/proc/meminfo: memFree=1737192/2055920 swapFree=4192812/4192956
[pid=14696] ppid=14694 vsize=26028 CPUtime=9.82
/proc/14696/stat : 14696 (mmisat) R 14694 14696 13626 0 -1 4194304 6375 0 0 0 980 2 0 0 25 0 1 0 270945731 26652672 6358 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134518346 0 0 4096 0 0 0 0 17 1 0 0
/proc/14696/statm: 6507 6358 84 214 0 6289 0
Current children cumulated CPU time (s) 9.82
Current children cumulated vsize (KiB) 26028

[startup+10.2476 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 14697
/proc/meminfo: memFree=1736872/2055920 swapFree=4192812/4192956
[pid=14696] ppid=14694 vsize=46496 CPUtime=10.23
/proc/14696/stat : 14696 (mmisat) R 14694 14696 13626 0 -1 4194304 11476 0 0 0 1019 4 0 0 25 0 1 0 270945731 47611904 11459 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134518822 0 0 4096 0 0 0 0 17 1 0 0
/proc/14696/statm: 11624 11459 85 214 0 11406 0
Current children cumulated CPU time (s) 10.23
Current children cumulated vsize (KiB) 46496

[startup+10.6557 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 14697
/proc/meminfo: memFree=1736872/2055920 swapFree=4192812/4192956
[pid=14696] ppid=14694 vsize=46524 CPUtime=10.64
/proc/14696/stat : 14696 (mmisat) R 14694 14696 13626 0 -1 4195840 17159 0 0 0 1045 19 0 0 25 0 1 0 270945731 47640576 11498 18446744073709551615 134512640 135391789 4294956704 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/14696/statm: 11631 11498 86 214 0 11413 0
Current children cumulated CPU time (s) 10.64
Current children cumulated vsize (KiB) 46524

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 10.7191
CPU time (s): 10.7154
CPU user time (s): 10.4584
CPU system time (s): 0.25696
CPU usage (%): 99.9649
Max. virtual memory (cumulated for all children) (KiB): 69200

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.4584
system time used= 0.25696
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17159
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= 23

runsolver used 0.018997 second user time and 0.025996 second system time

The end



Launcher Data (download as text)




Begin job on node18 on Mon Feb 26 17:11:52 UTC 2007

IDJOB= 307954
IDBENCH= 20218
IDSOLVER= 108
FILE ID= node18/307954-1172509912

PBS_JOBID= 3971589

Free space on /tmp= 66556 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.7/v3500/unif2p-p0.7-v3500-c9345-S1671384215-01-SAT.cnf
COMMAND LINE= /tmp/evaluation/307954-1172509912/mmisat /tmp/evaluation/307954-1172509912/instance-307954-1172509912.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-307954-1172509912 -o ROOT/results/node18/solver-307954-1172509912 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/307954-1172509912/mmisat /tmp/evaluation/307954-1172509912/instance-307954-1172509912.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  b44330819e18ebafb103a47668b9fb76

RANDOM SEED= 921728924

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node18.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:       1763080 kB
Buffers:         39676 kB
Cached:         139844 kB
SwapCached:          0 kB
Active:         199816 kB
Inactive:        40164 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1763080 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1260 kB
Writeback:           0 kB
Mapped:          79372 kB
Slab:            38512 kB
Committed_AS:   925152 kB
PageTables:       1672 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= 66512 MiB

End job on node18 on Mon Feb 26 17:12:03 UTC 2007