Trace number 332759

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 12.947 12.9661

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 benchmark0.241962
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)

11.08/11.13	c run March_dl for 5 seconds ... 
11.08/11.13	c Bin: Executing march_dl
11.08/11.13	c child exit by a signal
11.08/11.13	c march_dl returned code 137.
11.08/11.13	c run saps (UBCSAT implementation) for 2 seconds ... 
11.08/11.13	c Bin: Executing ubcsat2006
11.08/11.13	c child exited successfully
11.08/11.13	c ubcsat2006 returned code 0.
11.08/11.13	c satzilla computing base features
11.08/11.13	c satzilla doing unit-prop probe
11.08/11.13	c satzilla doing local search probe
11.08/11.13	c satzilla doing lobjois search-space size estimate
11.08/11.13	c satzilla's ranking:
11.08/11.13	c 1) vallst+P: -0.461542
11.08/11.13	c 2) minisat20+P: 0.232893
11.08/11.13	c 3) zchaff_rand+P: 0.372098
11.08/11.13	c 4) minisat20: 1.971928
11.08/11.13	c 5) march_dl+P: 3.704256
11.08/11.13	c 6) march_dl: 3.831987
11.08/11.13	c 7) kcnfs+P: 999.000000
11.08/11.13	c 8) kcnfs: 999.000000
11.08/11.13	c 9) vallst: 999.000000
11.08/11.13	c 10) zchaff_rand: 999.000000
11.08/11.13	c satzilla running vallst with preprocessing ... 
12.85/12.96	c Preprocessing...
12.85/12.96	c Inital problem has 257 variables, 7364 nary clauses (11 binary clauses).
12.85/12.96	c Num non-binary clauses 7363, Average non-binary clause length 8.485
12.85/12.96	c Theory has no gaps
12.85/12.96	c Preprocessor runtime was 0.020 seconds.
12.85/12.96	c 
12.85/12.96	c Satisfiability of theory still undetermined.
12.85/12.96	c See file /tmp/khtMGN for simplified theory.
12.85/12.96	c Bin: Executing vallst
12.85/12.96	c child exited successfully
12.85/12.96	c vallst returned code 20.
12.85/12.96	s UNSATISFIABLE
12.85/12.96	c SATZILLA_TIME=12.920000

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node18/watcher-332759-1173489032 -o ROOT/results/node18/solver-332759-1173489032 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/332759-1173489032/SATzilla2007_C /tmp/evaluation/332759-1173489032/instance-332759-1173489032.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: 0.92 0.98 0.99 3/77 14321
/proc/meminfo: memFree=1578032/2055920 swapFree=4153284/4192956
[pid=14321] ppid=14319 vsize=1440 CPUtime=0
/proc/14321/stat : 14321 (SATzilla2007_C) R 14319 14321 12487 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 368857765 1474560 110 18446744073709551615 134512640 135579813 4294956688 18446744073709551615 135216547 0 0 4096 0 0 0 0 17 1 0 0
/proc/14321/statm: 360 110 95 260 0 84 0
[pid=14322] ppid=14321 vsize=636 CPUtime=0
/proc/14322/stat : 14322 (march_dl) R 14321 14321 12487 0 -1 4194304 86 0 0 0 0 0 0 0 18 0 1 0 368857766 651264 81 18446744073709551615 134512640 134996440 4294956720 18446744073709551615 134724296 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14322/statm: 159 81 50 118 0 38 0

[startup+0.0786071 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 14321
/proc/meminfo: memFree=1578032/2055920 swapFree=4153284/4192956
[pid=14321] ppid=14319 vsize=1440 CPUtime=0
/proc/14321/stat : 14321 (SATzilla2007_C) S 14319 14321 12487 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 368857765 1474560 110 18446744073709551615 134512640 135579813 4294956688 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14321/statm: 360 110 95 260 0 84 0
[pid=14322] ppid=14321 vsize=1524 CPUtime=0.07
/proc/14322/stat : 14322 (march_dl) R 14321 14321 12487 0 -1 4194304 1051 0 0 0 7 0 0 0 19 0 1 0 368857766 1560576 277 18446744073709551615 134512640 134996440 4294956720 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14322/statm: 381 277 65 118 0 260 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 2964

[startup+0.10161 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 14321
/proc/meminfo: memFree=1578032/2055920 swapFree=4153284/4192956
[pid=14321] ppid=14319 vsize=1440 CPUtime=0
/proc/14321/stat : 14321 (SATzilla2007_C) S 14319 14321 12487 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 368857765 1474560 110 18446744073709551615 134512640 135579813 4294956688 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14321/statm: 360 110 95 260 0 84 0
[pid=14322] ppid=14321 vsize=2960 CPUtime=0.09
/proc/14322/stat : 14322 (march_dl) R 14321 14321 12487 0 -1 4194304 1317 0 0 0 9 0 0 0 19 0 1 0 368857766 3031040 327 18446744073709551615 134512640 134996440 4294956720 18446744073709551615 134582320 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14322/statm: 740 337 67 118 0 619 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4400

[startup+0.30163 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 14321
/proc/meminfo: memFree=1578032/2055920 swapFree=4153284/4192956
[pid=14321] ppid=14319 vsize=1440 CPUtime=0
/proc/14321/stat : 14321 (SATzilla2007_C) S 14319 14321 12487 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 368857765 1474560 110 18446744073709551615 134512640 135579813 4294956688 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14321/statm: 360 110 95 260 0 84 0
[pid=14322] ppid=14321 vsize=2452 CPUtime=0.29
/proc/14322/stat : 14322 (march_dl) R 14321 14321 12487 0 -1 4194304 1786 0 0 0 29 0 0 0 21 0 1 0 368857766 2510848 511 18446744073709551615 134512640 134996440 4294956720 18446744073709551615 134533634 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14322/statm: 613 511 73 118 0 492 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3892

[startup+0.701668 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 14321
/proc/meminfo: memFree=1578032/2055920 swapFree=4153284/4192956
[pid=14321] ppid=14319 vsize=1440 CPUtime=0
/proc/14321/stat : 14321 (SATzilla2007_C) S 14319 14321 12487 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 368857765 1474560 110 18446744073709551615 134512640 135579813 4294956688 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14321/statm: 360 110 95 260 0 84 0
[pid=14322] ppid=14321 vsize=2432 CPUtime=0.69
/proc/14322/stat : 14322 (march_dl) R 14321 14321 12487 0 -1 4194304 1865 0 0 0 69 0 0 0 25 0 1 0 368857766 2490368 513 18446744073709551615 134512640 134996440 4294956720 18446744073709551615 134532856 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14322/statm: 608 513 75 118 0 487 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3872

[startup+1.50174 s]
/proc/loadavg: 0.92 0.98 0.99 2/79 14323
/proc/meminfo: memFree=1575904/2055920 swapFree=4153284/4192956
[pid=14321] ppid=14319 vsize=1440 CPUtime=0
/proc/14321/stat : 14321 (SATzilla2007_C) S 14319 14321 12487 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 368857765 1474560 110 18446744073709551615 134512640 135579813 4294956688 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14321/statm: 360 110 95 260 0 84 0
[pid=14322] ppid=14321 vsize=2432 CPUtime=1.49
/proc/14322/stat : 14322 (march_dl) R 14321 14321 12487 0 -1 4194304 1865 0 0 0 149 0 0 0 25 0 1 0 368857766 2490368 513 18446744073709551615 134512640 134996440 4294956720 18446744073709551615 134533070 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14322/statm: 608 513 75 118 0 487 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3872

[startup+3.1019 s]
/proc/loadavg: 0.92 0.98 0.99 2/79 14323
/proc/meminfo: memFree=1575776/2055920 swapFree=4153284/4192956
[pid=14321] ppid=14319 vsize=1440 CPUtime=0
/proc/14321/stat : 14321 (SATzilla2007_C) S 14319 14321 12487 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 368857765 1474560 110 18446744073709551615 134512640 135579813 4294956688 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14321/statm: 360 110 95 260 0 84 0
[pid=14322] ppid=14321 vsize=2432 CPUtime=3.09
/proc/14322/stat : 14322 (march_dl) R 14321 14321 12487 0 -1 4194304 1865 0 0 0 309 0 0 0 25 0 1 0 368857766 2490368 513 18446744073709551615 134512640 134996440 4294956720 18446744073709551615 134552292 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14322/statm: 608 513 75 118 0 487 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3872

[startup+6.30121 s]
/proc/loadavg: 0.93 0.98 0.99 2/79 14324
/proc/meminfo: memFree=1576608/2055920 swapFree=4153284/4192956
[pid=14321] ppid=14319 vsize=1440 CPUtime=4.99
/proc/14321/stat : 14321 (SATzilla2007_C) S 14319 14321 12487 0 -1 4194304 135 1865 0 0 0 0 499 0 16 0 1 0 368857765 1474560 111 18446744073709551615 134512640 135579813 4294956688 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14321/statm: 360 111 96 260 0 84 0
[pid=14324] ppid=14321 vsize=6188 CPUtime=1.29
/proc/14324/stat : 14324 (ubcsat2006) R 14321 14321 12487 0 -1 4194304 411 0 0 0 120 9 0 0 25 0 1 0 368858266 6336512 394 18446744073709551615 134512640 134777720 4294956576 18446744073709551615 4294960144 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14324/statm: 1547 394 156 64 0 1128 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 7628

[startup+12.7018 s]
/proc/loadavg: 0.93 0.98 0.99 2/79 14325
/proc/meminfo: memFree=1573728/2055920 swapFree=4153284/4192956
[pid=14321] ppid=14319 vsize=3996 CPUtime=11.16
/proc/14321/stat : 14321 (SATzilla2007_C) S 14319 14321 12487 0 -1 4194304 1387 2282 0 0 387 13 702 14 25 0 1 0 368857765 4091904 774 18446744073709551615 134512640 135579813 4294956688 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/14321/statm: 999 774 165 260 0 723 0
[pid=14325] ppid=14321 vsize=4276 CPUtime=1.49
/proc/14325/stat : 14325 (vallst) R 14321 14321 12487 0 -1 4194304 516 0 1 0 135 14 0 0 25 0 1 0 368858884 4378624 500 18446744073709551615 134512640 134738160 4294956752 18446744073709551615 4294960144 0 0 4096 8404994 0 0 0 17 1 0 0
/proc/14325/statm: 1069 500 151 55 0 659 0
Current children cumulated CPU time (s) 12.65
Current children cumulated vsize (KiB) 8272

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

[startup+12.9018 s]
/proc/loadavg: 0.93 0.98 0.99 2/79 14325
/proc/meminfo: memFree=1573728/2055920 swapFree=4153284/4192956
[pid=14321] ppid=14319 vsize=3996 CPUtime=11.16
/proc/14321/stat : 14321 (SATzilla2007_C) S 14319 14321 12487 0 -1 4194304 1387 2282 0 0 387 13 702 14 25 0 1 0 368857765 4091904 774 18446744073709551615 134512640 135579813 4294956688 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/14321/statm: 999 774 165 260 0 723 0
[pid=14325] ppid=14321 vsize=4572 CPUtime=1.69
/proc/14325/stat : 14325 (vallst) R 14321 14321 12487 0 -1 4194304 539 0 1 0 153 16 0 0 25 0 1 0 368858884 4681728 523 18446744073709551615 134512640 134738160 4294956752 18446744073709551615 4294960144 0 0 4096 8404994 0 0 0 17 1 0 0
/proc/14325/statm: 1143 523 151 55 0 733 0
Current children cumulated CPU time (s) 12.85
Current children cumulated vsize (KiB) 8568

Child status: 20
Real time (s): 12.9661
CPU time (s): 12.947
CPU user time (s): 12.4941
CPU system time (s): 0.452931
CPU usage (%): 99.8533
Max. virtual memory (cumulated for all children) (KiB): 8568

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.4941
system time used= 0.452931
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4222
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 29
involuntary context switches= 33

runsolver used 0.015997 second user time and 0.034994 second system time

The end

Launcher Data (download as text)

Begin job on node18 on Sat Mar 10 01:10:32 UTC 2007

IDJOB= 332759
IDBENCH= 24587
IDSOLVER= 135
FILE ID= node18/332759-1173489032

PBS_JOBID= 4101084

Free space on /tmp= 66506 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/332759-1173489032/SATzilla2007_C /tmp/evaluation/332759-1173489032/instance-332759-1173489032.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-332759-1173489032 -o ROOT/results/node18/solver-332759-1173489032 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/332759-1173489032/SATzilla2007_C /tmp/evaluation/332759-1173489032/instance-332759-1173489032.cnf            

META MD5SUM SOLVER= a1f00d13cbb558b34a83b365ff80fcc3
MD5SUM BENCH=  e72b4e386685e8ae3270a3d69e1ae8da

RANDOM SEED= 968019850

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:       1578376 kB
Buffers:         40692 kB
Cached:         358604 kB
SwapCached:       2856 kB
Active:         151500 kB
Inactive:       272988 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1578376 kB
SwapTotal:     4192956 kB
SwapFree:      4153284 kB
Dirty:            8700 kB
Writeback:           0 kB
Mapped:          32216 kB
Slab:            38680 kB
Committed_AS:  1223680 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= 66506 MiB

End job on node18 on Sat Mar 10 01:10:45 UTC 2007