Trace number 369998

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
TTS 4.0UNSAT 3.54446 3.54718

General information on the benchmark

Namecrafted/spence/
medium/s61-100.cnf
MD5SUM8e686ecbc85309de84d77c0df9eeaa58
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.02369
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of clauses132
Sum of the clauses size396
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3132
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

3.49/3.54	c Command: /tmp/evaluation/369998-1177550643/tts-4-0 /tmp/evaluation/369998-1177550643/instance-369998-1177550643.cnf 
3.49/3.54	c CPU limit set to 5000.000000
3.49/3.54	c Variables = 61
3.49/3.54	c Clauses = 132
3.49/3.54	c Literals = 396
3.49/3.54	c Reduced size:
3.49/3.54	c Variables = 61
3.49/3.54	c Clauses = 132
3.49/3.54	c Literals = 396
3.49/3.54	c Independent sub-problems = 1
3.49/3.54	c Sub-problem with 61 variables
3.49/3.54	c using permutation method 3
3.49/3.54	c Ordering finished 0.120 seconds
3.49/3.54	c mapped 0.120 seconds
3.49/3.54	c permuted 0.120 seconds
3.49/3.54	c init finished 0.120 seconds
3.49/3.54	c tree built 0.120 seconds
3.49/3.54	c Partial assignments = 180055, improvements = 32088
3.49/3.54	s UNSATISFIABLE
3.49/3.54	c Time = 3.54 seconds

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node39/watcher-369998-1177550643 -o ROOT/results/node39/solver-369998-1177550643 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/369998-1177550643/tts-4-0 /tmp/evaluation/369998-1177550643/instance-369998-1177550643.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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 0.97 0.91 3/77 10143
/proc/meminfo: memFree=1722184/2055920 swapFree=4159384/4192956
[pid=10143] ppid=10141 vsize=796 CPUtime=0
/proc/10143/stat : 10143 (tts-4-0) R 10141 10143 8942 0 -1 4194304 96 0 0 0 0 0 0 0 18 0 1 0 202976362 815104 82 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134556026 0 0 4096 0 0 0 0 17 1 0 0
/proc/10143/statm: 199 82 62 113 0 83 0

[startup+0.0177829 s]
/proc/loadavg: 0.99 0.97 0.91 3/77 10143
/proc/meminfo: memFree=1722184/2055920 swapFree=4159384/4192956
[pid=10143] ppid=10141 vsize=796 CPUtime=0.01
/proc/10143/stat : 10143 (tts-4-0) R 10141 10143 8942 0 -1 4194304 96 0 0 0 1 0 0 0 18 0 1 0 202976362 815104 82 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134588966 0 0 4096 0 0 0 0 17 1 0 0
/proc/10143/statm: 199 82 62 113 0 83 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 796

[startup+0.101797 s]
/proc/loadavg: 0.99 0.97 0.91 3/77 10143
/proc/meminfo: memFree=1722184/2055920 swapFree=4159384/4192956
[pid=10143] ppid=10141 vsize=796 CPUtime=0.1
/proc/10143/stat : 10143 (tts-4-0) R 10141 10143 8942 0 -1 4194304 97 0 0 0 10 0 0 0 18 0 1 0 202976362 815104 83 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134556092 0 0 4096 0 0 0 0 17 1 0 0
/proc/10143/statm: 199 83 63 113 0 83 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 796

[startup+0.301831 s]
/proc/loadavg: 0.99 0.97 0.91 3/77 10143
/proc/meminfo: memFree=1722184/2055920 swapFree=4159384/4192956
[pid=10143] ppid=10141 vsize=1032 CPUtime=0.29
/proc/10143/stat : 10143 (tts-4-0) R 10141 10143 8942 0 -1 4194304 197 0 0 0 29 0 0 0 19 0 1 0 202976362 1056768 183 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134535187 0 0 4096 0 0 0 0 17 1 0 0
/proc/10143/statm: 258 183 67 113 0 142 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1032

[startup+0.701899 s]
/proc/loadavg: 0.99 0.97 0.91 3/77 10143
/proc/meminfo: memFree=1722184/2055920 swapFree=4159384/4192956
[pid=10143] ppid=10141 vsize=1504 CPUtime=0.69
/proc/10143/stat : 10143 (tts-4-0) R 10141 10143 8942 0 -1 4194304 275 0 0 0 69 0 0 0 22 0 1 0 202976362 1540096 261 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534095 0 0 4096 0 0 0 0 17 1 0 0
/proc/10143/statm: 376 261 67 113 0 260 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1504

[startup+1.50103 s]
/proc/loadavg: 0.99 0.97 0.91 2/78 10144
/proc/meminfo: memFree=1721088/2055920 swapFree=4159384/4192956
[pid=10143] ppid=10141 vsize=1972 CPUtime=1.49
/proc/10143/stat : 10143 (tts-4-0) R 10141 10143 8942 0 -1 4194304 411 0 0 0 149 0 0 0 25 0 1 0 202976362 2019328 397 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534060 0 0 4096 0 0 0 0 17 1 0 0
/proc/10143/statm: 493 397 67 113 0 377 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1972

[startup+3.1023 s]
/proc/loadavg: 0.99 0.97 0.91 2/78 10144
/proc/meminfo: memFree=1720384/2055920 swapFree=4159384/4192956
[pid=10143] ppid=10141 vsize=2676 CPUtime=3.09
/proc/10143/stat : 10143 (tts-4-0) R 10141 10143 8942 0 -1 4194304 575 0 0 0 309 0 0 0 25 0 1 0 202976362 2740224 561 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534120 0 0 4096 0 0 0 0 17 1 0 0
/proc/10143/statm: 669 561 67 113 0 553 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2676

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

[startup+3.50137 s]
/proc/loadavg: 0.99 0.97 0.91 2/78 10144
/proc/meminfo: memFree=1719936/2055920 swapFree=4159384/4192956
[pid=10143] ppid=10141 vsize=2676 CPUtime=3.49
/proc/10143/stat : 10143 (tts-4-0) R 10141 10143 8942 0 -1 4194304 605 0 0 0 349 0 0 0 25 0 1 0 202976362 2740224 591 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534154 0 0 4096 0 0 0 0 17 1 0 0
/proc/10143/statm: 669 591 67 113 0 553 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 2676

Child status: 20
Real time (s): 3.54718
CPU time (s): 3.54446
CPU user time (s): 3.54046
CPU system time (s): 0.003999
CPU usage (%): 99.9234
Max. virtual memory (cumulated for all children) (KiB): 2676

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.54046
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 608
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= 8
involuntary context switches= 13

runsolver used 0.005999 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node39 on Thu Apr 26 01:24:03 UTC 2007

IDJOB= 369998
IDBENCH= 20433
IDSOLVER= 178
FILE ID= node39/369998-1177550643

PBS_JOBID= 4696584

Free space on /tmp= 66489 MiB

SOLVER NAME= TTS 4.0
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s61-100.cnf
COMMAND LINE= /tmp/evaluation/369998-1177550643/tts-4-0 /tmp/evaluation/369998-1177550643/instance-369998-1177550643.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-369998-1177550643 -o ROOT/results/node39/solver-369998-1177550643 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/369998-1177550643/tts-4-0 /tmp/evaluation/369998-1177550643/instance-369998-1177550643.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  8e686ecbc85309de84d77c0df9eeaa58

RANDOM SEED= 230476698

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node39.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		: 3000.256
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		: 3000.256
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:       1722528 kB
Buffers:         39616 kB
Cached:         203256 kB
SwapCached:      13964 kB
Active:         168516 kB
Inactive:        99524 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1722528 kB
SwapTotal:     4192956 kB
SwapFree:      4159384 kB
Dirty:             740 kB
Writeback:           0 kB
Mapped:          32172 kB
Slab:            50620 kB
Committed_AS:  2021616 kB
PageTables:       2012 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= 66489 MiB

End job on node39 on Thu Apr 26 01:24:07 UTC 2007