Trace number 370080

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
SATzilla CRAFTEDUNSAT 12.8101 12.8231

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00070.sat05-1324.reshuffled-07.cnf
MD5SUMe72b4e386685e8ae3270a3d69e1ae8da
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.251961
Satisfiable
(Un)Satisfiability was proved
Number of variables257
Number of clauses7375
Sum of the clauses size62500
Maximum clause length11
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 211
Number of clauses of size 346
Number of clauses of size 4119
Number of clauses of size 5300
Number of clauses of size over 56898

Solver Data (download as text)

11.17/11.29	c run March_dl for 5 seconds ... 
11.17/11.29	c Bin: Executing march_dl
11.17/11.29	c child exit by a signal
11.17/11.29	c march_dl returned code 137.
11.17/11.29	c run saps (UBCSAT implementation) for 2 seconds ... 
11.17/11.29	c Bin: Executing ubcsat2006
11.17/11.29	c child exited successfully
11.17/11.29	c ubcsat2006 returned code 0.
11.17/11.29	c satzilla computing base features
11.17/11.29	c satzilla doing unit-prop probe
11.17/11.29	c satzilla doing local search probe
11.17/11.29	c satzilla doing lobjois search-space size estimate
11.17/11.29	c satzilla's ranking:
11.17/11.29	c 1) vallst+P: -0.443272
11.17/11.29	c 2) minisat20+P: 0.256537
11.17/11.29	c 3) zchaff_rand+P: 0.380486
11.17/11.29	c 4) minisat20: 1.976930
11.17/11.29	c 5) march_dl+P: 3.751211
11.17/11.29	c 6) march_dl: 3.851502
11.17/11.29	c 7) kcnfs+P: 999.000000
11.17/11.29	c 8) kcnfs: 999.000000
11.17/11.29	c 9) vallst: 999.000000
11.17/11.29	c 10) zchaff_rand: 999.000000
11.17/11.29	c satzilla running vallst with preprocessing ... 
12.76/12.82	c Preprocessing...
12.76/12.82	c Inital problem has 257 variables, 7364 nary clauses (11 binary clauses).
12.76/12.82	c Num non-binary clauses 7363, Average non-binary clause length 8.485
12.76/12.82	c Theory has no gaps
12.76/12.82	c Preprocessor runtime was 0.020 seconds.
12.76/12.82	c 
12.76/12.82	c Satisfiability of theory still undetermined.
12.76/12.82	c See file /tmp/FpUwtV for simplified theory.
12.76/12.82	c Bin: Executing vallst
12.76/12.82	c child exited successfully
12.76/12.82	c vallst returned code 20.
12.76/12.82	s UNSATISFIABLE
12.76/12.82	c SATZILLA_TIME=12.790000

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/node55/watcher-370080-1177551922 -o ROOT/results/node55/solver-370080-1177551922 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/370080-1177551922/SATzilla2007_C /tmp/evaluation/370080-1177551922/instance-370080-1177551922.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: 0.78 0.93 0.90 3/64 15826
/proc/meminfo: memFree=1439612/2055920 swapFree=4184544/4192956
[pid=15826] ppid=15824 vsize=1440 CPUtime=0
/proc/15826/stat : 15826 (SATzilla2007_C) R 15824 15826 14633 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 203102250 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216547 0 0 4096 0 0 0 0 17 1 0 0
/proc/15826/statm: 360 110 95 260 0 84 0
[pid=15827] ppid=15826 vsize=636 CPUtime=0
/proc/15827/stat : 15827 (march_dl) R 15826 15826 14633 0 -1 4194304 85 0 0 0 0 0 0 0 18 0 1 0 203102250 651264 80 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 1 0 0
/proc/15827/statm: 159 80 50 118 0 38 0

[startup+0.0530189 s]
/proc/loadavg: 0.78 0.93 0.90 3/64 15826
/proc/meminfo: memFree=1439612/2055920 swapFree=4184544/4192956
[pid=15826] ppid=15824 vsize=1440 CPUtime=0
/proc/15826/stat : 15826 (SATzilla2007_C) S 15824 15826 14633 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 203102250 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/15826/statm: 360 110 95 260 0 84 0
[pid=15827] ppid=15826 vsize=1392 CPUtime=0.05
/proc/15827/stat : 15827 (march_dl) R 15826 15826 14633 0 -1 4194304 489 0 0 0 5 0 0 0 19 0 1 0 203102250 1425408 261 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134525380 0 0 8392704 0 0 0 0 17 1 0 0
/proc/15827/statm: 348 261 57 118 0 227 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 2832

[startup+0.101023 s]
/proc/loadavg: 0.78 0.93 0.90 3/64 15826
/proc/meminfo: memFree=1439612/2055920 swapFree=4184544/4192956
[pid=15826] ppid=15824 vsize=1440 CPUtime=0
/proc/15826/stat : 15826 (SATzilla2007_C) S 15824 15826 14633 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 203102250 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/15826/statm: 360 110 95 260 0 84 0
[pid=15827] ppid=15826 vsize=1392 CPUtime=0.09
/proc/15827/stat : 15827 (march_dl) R 15826 15826 14633 0 -1 4194304 1260 0 0 0 9 0 0 0 19 0 1 0 203102250 1425408 269 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134617262 0 0 8392704 0 0 0 0 17 1 0 0
/proc/15827/statm: 348 269 65 118 0 227 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2832

[startup+0.30104 s]
/proc/loadavg: 0.78 0.93 0.90 3/64 15826
/proc/meminfo: memFree=1439612/2055920 swapFree=4184544/4192956
[pid=15826] ppid=15824 vsize=1440 CPUtime=0
/proc/15826/stat : 15826 (SATzilla2007_C) S 15824 15826 14633 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 203102250 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/15826/statm: 360 110 95 260 0 84 0
[pid=15827] ppid=15826 vsize=2452 CPUtime=0.29
/proc/15827/stat : 15827 (march_dl) R 15826 15826 14633 0 -1 4194304 1786 0 0 0 29 0 0 0 20 0 1 0 203102250 2510848 511 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134533698 0 0 8392704 0 0 0 0 17 1 0 0
/proc/15827/statm: 613 511 73 118 0 492 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3892

[startup+0.701078 s]
/proc/loadavg: 0.78 0.93 0.90 3/64 15826
/proc/meminfo: memFree=1439612/2055920 swapFree=4184544/4192956
[pid=15826] ppid=15824 vsize=1440 CPUtime=0
/proc/15826/stat : 15826 (SATzilla2007_C) S 15824 15826 14633 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 203102250 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/15826/statm: 360 110 95 260 0 84 0
[pid=15827] ppid=15826 vsize=2432 CPUtime=0.69
/proc/15827/stat : 15827 (march_dl) R 15826 15826 14633 0 -1 4194304 1865 0 0 0 69 0 0 0 24 0 1 0 203102250 2490368 513 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134536701 0 0 8392704 0 0 0 0 17 1 0 0
/proc/15827/statm: 608 513 75 118 0 487 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3872

[startup+1.50115 s]
/proc/loadavg: 0.78 0.93 0.90 2/66 15828
/proc/meminfo: memFree=1437548/2055920 swapFree=4184544/4192956
[pid=15826] ppid=15824 vsize=1440 CPUtime=0
/proc/15826/stat : 15826 (SATzilla2007_C) S 15824 15826 14633 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 203102250 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/15826/statm: 360 110 95 260 0 84 0
[pid=15827] ppid=15826 vsize=2432 CPUtime=1.49
/proc/15827/stat : 15827 (march_dl) R 15826 15826 14633 0 -1 4194304 1865 0 0 0 149 0 0 0 25 0 1 0 203102250 2490368 513 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134531618 0 0 8392704 0 0 0 0 17 1 0 0
/proc/15827/statm: 608 513 75 118 0 487 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3872

[startup+3.10231 s]
/proc/loadavg: 0.78 0.93 0.90 2/66 15828
/proc/meminfo: memFree=1437420/2055920 swapFree=4184544/4192956
[pid=15826] ppid=15824 vsize=1440 CPUtime=0
/proc/15826/stat : 15826 (SATzilla2007_C) S 15824 15826 14633 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 203102250 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/15826/statm: 360 110 95 260 0 84 0
[pid=15827] ppid=15826 vsize=2432 CPUtime=3.09
/proc/15827/stat : 15827 (march_dl) R 15826 15826 14633 0 -1 4194304 1865 0 0 0 309 0 0 0 25 0 1 0 203102250 2490368 513 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134537788 0 0 8392704 0 0 0 0 17 1 0 0
/proc/15827/statm: 608 513 75 118 0 487 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3872

[startup+6.30161 s]
/proc/loadavg: 0.80 0.93 0.90 2/66 15829
/proc/meminfo: memFree=1438188/2055920 swapFree=4184544/4192956
[pid=15826] ppid=15824 vsize=1440 CPUtime=4.99
/proc/15826/stat : 15826 (SATzilla2007_C) S 15824 15826 14633 0 -1 4194304 134 1865 0 0 0 0 499 0 16 0 1 0 203102250 1474560 111 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/15826/statm: 360 111 96 260 0 84 0
[pid=15829] ppid=15826 vsize=6188 CPUtime=1.28
/proc/15829/stat : 15829 (ubcsat2006) R 15826 15826 14633 0 -1 4194304 411 0 0 0 117 11 0 0 25 0 1 0 203102750 6336512 394 18446744073709551615 134512640 134777720 4294956544 18446744073709551615 4294960144 0 0 8392704 0 0 0 0 17 1 0 0
/proc/15829/statm: 1547 394 156 64 0 1128 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 7628

[startup+12.7012 s]
/proc/loadavg: 0.82 0.93 0.90 2/66 15830
/proc/meminfo: memFree=1435436/2055920 swapFree=4184544/4192956
[pid=15826] ppid=15824 vsize=3996 CPUtime=11.32
/proc/15826/stat : 15826 (SATzilla2007_C) S 15824 15826 14633 0 -1 4194304 1386 2282 0 0 392 14 702 24 25 0 1 0 203102250 4091904 774 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/15826/statm: 999 774 165 260 0 723 0
[pid=15830] ppid=15826 vsize=4276 CPUtime=1.34
/proc/15830/stat : 15830 (vallst) R 15826 15826 14633 0 -1 4194304 510 0 0 0 121 13 0 0 25 0 1 0 203103385 4378624 493 18446744073709551615 134512640 134738160 4294956704 18446744073709551615 4294960144 0 0 4096 8404994 0 0 0 17 1 0 0
/proc/15830/statm: 1069 493 151 55 0 659 0
Current children cumulated CPU time (s) 12.66
Current children cumulated vsize (KiB) 8272

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

[startup+12.8012 s]
/proc/loadavg: 0.82 0.93 0.90 2/66 15830
/proc/meminfo: memFree=1435436/2055920 swapFree=4184544/4192956
[pid=15826] ppid=15824 vsize=3996 CPUtime=11.32
/proc/15826/stat : 15826 (SATzilla2007_C) S 15824 15826 14633 0 -1 4194304 1386 2282 0 0 392 14 702 24 25 0 1 0 203102250 4091904 774 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/15826/statm: 999 774 165 260 0 723 0
[pid=15830] ppid=15826 vsize=4276 CPUtime=1.44
/proc/15830/stat : 15830 (vallst) R 15826 15826 14633 0 -1 4194304 513 0 0 0 130 14 0 0 25 0 1 0 203103385 4378624 496 18446744073709551615 134512640 134738160 4294956704 18446744073709551615 4294960144 0 0 4096 8404994 0 0 0 17 1 0 0
/proc/15830/statm: 1069 496 151 55 0 659 0
Current children cumulated CPU time (s) 12.76
Current children cumulated vsize (KiB) 8272

Child status: 20
Real time (s): 12.8231
CPU time (s): 12.8101
CPU user time (s): 12.2691
CPU system time (s): 0.540917
CPU usage (%): 99.8981
Max. virtual memory (cumulated for all children) (KiB): 8272

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.2691
system time used= 0.540917
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4194
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= 28
involuntary context switches= 39

runsolver used 0.006998 second user time and 0.036994 second system time

The end

Launcher Data (download as text)

Begin job on node55 on Thu Apr 26 01:45:22 UTC 2007

IDJOB= 370080
IDBENCH= 24587
IDSOLVER= 179
FILE ID= node55/370080-1177551922

PBS_JOBID= 4696628

Free space on /tmp= 66365 MiB

SOLVER NAME= SATzilla CRAFTED
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00070.sat05-1324.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/370080-1177551922/SATzilla2007_C /tmp/evaluation/370080-1177551922/instance-370080-1177551922.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-370080-1177551922 -o ROOT/results/node55/solver-370080-1177551922 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/370080-1177551922/SATzilla2007_C /tmp/evaluation/370080-1177551922/instance-370080-1177551922.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  e72b4e386685e8ae3270a3d69e1ae8da

RANDOM SEED= 279251674

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node55.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		: 3000.216
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		: 3000.216
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:       1439956 kB
Buffers:         48400 kB
Cached:         453060 kB
SwapCached:       2556 kB
Active:         288392 kB
Inactive:       261024 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1439956 kB
SwapTotal:     4192956 kB
SwapFree:      4184544 kB
Dirty:            8776 kB
Writeback:           0 kB
Mapped:          54360 kB
Slab:            52404 kB
Committed_AS:  1376396 kB
PageTables:       1496 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= 66365 MiB

End job on node55 on Thu Apr 26 01:45:35 UTC 2007