Trace number 1831616

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
SApperloT baseUNSAT 3.89241 3.89223

General information on the benchmark

NameAPPLICATIONS/bitverif/
minor/minor032.cnf
MD5SUM93c9f18c75548b864ec69c2789cae658
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.417936
Satisfiable
(Un)Satisfiability was proved
Number of variables4210
Number of clauses12053
Sum of the clauses size28121
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 28034
Number of clauses of size 34017
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

3.79/3.89	
3.79/3.89	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1831616-1242774654/watcher-1831616-1242774654 -o /tmp/evaluation-result-1831616-1242774654/solver-1831616-1242774654 -C 10000 -W 12000 -M 1800 --output-limit 1,128 HOME/SApperloT-base -seed=1764230178 HOME/instance-1831616-1242774654.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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 134217728 bytes. The first 1048576 bytes and the last 133169152 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 0.93 3/64 13842
/proc/meminfo: memFree=1846904/2055924 swapFree=4140892/4192956
[pid=13842] ppid=13840 vsize=1600 CPUtime=0
/proc/13842/stat : 13842 (SApperloT-base) R 13840 13842 13751 0 -1 4194304 202 0 0 0 0 0 0 0 18 0 1 0 305499780 1638400 186 1992294400 134512640 135674940 4294956208 18446744073709551615 135113206 0 0 4096 0 0 0 0 17 1 0 0
/proc/13842/statm: 400 186 90 283 0 114 0

[startup+0.0552179 s]
/proc/loadavg: 1.00 1.00 0.93 3/64 13842
/proc/meminfo: memFree=1846904/2055924 swapFree=4140892/4192956
[pid=13842] ppid=13840 vsize=1996 CPUtime=0.05
/proc/13842/stat : 13842 (SApperloT-base) R 13840 13842 13751 0 -1 4194304 287 0 0 0 5 0 0 0 18 0 1 0 305499780 2043904 270 1992294400 134512640 135674940 4294956208 18446744073709551615 135113206 0 0 4096 0 0 0 0 17 1 0 0
/proc/13842/statm: 499 270 98 283 0 213 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1996

[startup+0.102225 s]
/proc/loadavg: 1.00 1.00 0.93 3/64 13842
/proc/meminfo: memFree=1846904/2055924 swapFree=4140892/4192956
[pid=13842] ppid=13840 vsize=1996 CPUtime=0.1
/proc/13842/stat : 13842 (SApperloT-base) R 13840 13842 13751 0 -1 4194304 312 0 0 0 10 0 0 0 18 0 1 0 305499780 2043904 295 1992294400 134512640 135674940 4294956208 18446744073709551615 134582878 0 0 4096 0 0 0 0 17 1 0 0
/proc/13842/statm: 499 295 98 283 0 213 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1996

[startup+0.302265 s]
/proc/loadavg: 1.00 1.00 0.93 3/64 13842
/proc/meminfo: memFree=1846904/2055924 swapFree=4140892/4192956
[pid=13842] ppid=13840 vsize=2656 CPUtime=0.3
/proc/13842/stat : 13842 (SApperloT-base) R 13840 13842 13751 0 -1 4194304 458 0 0 0 30 0 0 0 19 0 1 0 305499780 2719744 441 1992294400 134512640 135674940 4294956208 18446744073709551615 134564857 0 0 4096 0 0 0 0 17 1 0 0
/proc/13842/statm: 664 441 98 283 0 378 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 2656

[startup+0.701343 s]
/proc/loadavg: 1.00 1.00 0.93 3/64 13842
/proc/meminfo: memFree=1846904/2055924 swapFree=4140892/4192956
[pid=13842] ppid=13840 vsize=3712 CPUtime=0.69
/proc/13842/stat : 13842 (SApperloT-base) R 13840 13842 13751 0 -1 4194304 721 0 0 0 69 0 0 0 22 0 1 0 305499780 3801088 704 1992294400 134512640 135674940 4294956208 18446744073709551615 134564571 0 0 4096 0 0 0 0 17 1 0 0
/proc/13842/statm: 928 704 98 283 0 642 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3712

[startup+1.5015 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 13843
/proc/meminfo: memFree=1843888/2055924 swapFree=4140892/4192956
[pid=13842] ppid=13840 vsize=4784 CPUtime=1.49
/proc/13842/stat : 13842 (SApperloT-base) R 13840 13842 13751 0 -1 4194304 979 0 0 0 149 0 0 0 25 0 1 0 305499780 4898816 962 1992294400 134512640 135674940 4294956208 18446744073709551615 134552120 0 0 4096 0 0 0 0 17 1 0 0
/proc/13842/statm: 1196 962 98 283 0 910 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4784

[startup+3.10182 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 13843
/proc/meminfo: memFree=1843056/2055924 swapFree=4140892/4192956
[pid=13842] ppid=13840 vsize=5464 CPUtime=3.09
/proc/13842/stat : 13842 (SApperloT-base) R 13840 13842 13751 0 -1 4194304 1149 0 0 0 309 0 0 0 25 0 1 0 305499780 5595136 1132 1992294400 134512640 135674940 4294956208 18446744073709551615 134539920 0 0 4096 0 0 0 0 17 1 0 0
/proc/13842/statm: 1366 1132 98 283 0 1080 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 5464

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

[startup+3.50189 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 13843
/proc/meminfo: memFree=1842480/2055924 swapFree=4140892/4192956
[pid=13842] ppid=13840 vsize=5624 CPUtime=3.49
/proc/13842/stat : 13842 (SApperloT-base) R 13840 13842 13751 0 -1 4194304 1186 0 0 0 349 0 0 0 25 0 1 0 305499780 5758976 1169 1992294400 134512640 135674940 4294956208 18446744073709551615 134559707 0 0 4096 0 0 0 0 17 1 0 0
/proc/13842/statm: 1406 1169 98 283 0 1120 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 5624

[startup+3.70193 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 13843
/proc/meminfo: memFree=1842480/2055924 swapFree=4140892/4192956
[pid=13842] ppid=13840 vsize=5624 CPUtime=3.69
/proc/13842/stat : 13842 (SApperloT-base) R 13840 13842 13751 0 -1 4194304 1186 0 0 0 369 0 0 0 25 0 1 0 305499780 5758976 1169 1992294400 134512640 135674940 4294956208 18446744073709551615 134566829 0 0 4096 0 0 0 0 17 1 0 0
/proc/13842/statm: 1406 1169 98 283 0 1120 0
Current children cumulated CPU time (s) 3.69
Current children cumulated vsize (KiB) 5624

[startup+3.80195 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 13843
/proc/meminfo: memFree=1842480/2055924 swapFree=4140892/4192956
[pid=13842] ppid=13840 vsize=5624 CPUtime=3.79
/proc/13842/stat : 13842 (SApperloT-base) R 13840 13842 13751 0 -1 4194304 1186 0 0 0 379 0 0 0 25 0 1 0 305499780 5758976 1169 1992294400 134512640 135674940 4294956208 18446744073709551615 134565276 0 0 4096 0 0 0 0 17 1 0 0
/proc/13842/statm: 1406 1169 98 283 0 1120 0
Current children cumulated CPU time (s) 3.79
Current children cumulated vsize (KiB) 5624

Child status: 0
Real time (s): 3.89223
CPU time (s): 3.89241
CPU user time (s): 3.88741
CPU system time (s): 0.004999
CPU usage (%): 100.005
Max. virtual memory (cumulated for all children) (KiB): 5624

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.88741
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1190
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= 2
involuntary context switches= 9

runsolver used 0.002999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node6 at 2009-05-20 01:10:54
IDJOB=1831616
IDBENCH=70757
IDSOLVER=642
FILE ID=node6/1831616-1242774654
PBS_JOBID= 9322310
Free space on /tmp= 66304 MiB

SOLVER NAME= SApperloT base
BENCH NAME= SAT09/APPLICATIONS/bitverif/minor/minor032.cnf
COMMAND LINE= HOME/SApperloT-base -seed=RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1831616-1242774654/watcher-1831616-1242774654 -o /tmp/evaluation-result-1831616-1242774654/solver-1831616-1242774654 -C 10000 -W 12000 -M 1800 --output-limit 1,128  HOME/SApperloT-base -seed=1764230178 HOME/instance-1831616-1242774654.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 93c9f18c75548b864ec69c2789cae658
RANDOM SEED=1764230178

node6.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.281
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		: 3000.281
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:      2055924 kB
MemFree:       1847320 kB
Buffers:         13184 kB
Cached:         113424 kB
SwapCached:      46180 kB
Active:         114056 kB
Inactive:        60408 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1847320 kB
SwapTotal:     4192956 kB
SwapFree:      4140892 kB
Dirty:            1564 kB
Writeback:           0 kB
Mapped:          13964 kB
Slab:            20116 kB
Committed_AS:  1139656 kB
PageTables:       1460 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= 66304 MiB
End job on node6 at 2009-05-20 01:10:58